I made sure I put the cap/rotor on in the same position, checked all the plugs for correct gap, now I'm at a loss. 5 - Oil Pressure: The engine must be operating with normal and safe levels of oil pressure determined by the VTEC pressure switch. Only show this user. Cleared up FP code p0232. However if I restart the car, the problem disappears altogether. Sometimes Ill do the restart while rolling, shift back into gear, and the issue stops. we get off the freeway, turn around and head back to his house. tucson,az. i let off, go to 3rd and same thing. Sometimes its like the problems not there, then at the next stop sign, it does it all over again. The reason you see it more in high gears is because that is when the engine load is highest. These three critical components work together to ensure fuel flows smoothly from the fuel tank to your engines fuel injectors, and then pumps into the engine evenly. Sometimes Ill do the restart while rolling, shift back into gear, and the issue stops. V6. It had the symptons last week at much lower rpm's. Car idles really rough, kind of sounds cool like I have a high lift cam but very low idle and very rough. And it never happens in low rpms, just between about 4.5k - 6.5k rpm. At lower loads the over advanced condition may not be a problem. Replace the needle in the carburetor or replace the whole carburetor. I got worse as my last tank got closer and closer to empty. 1. My car has been sputtering at 4k rpms while driving I had codes come up before for tps and cam position sensor replaced both and it worked perfect going pass 2k rpms fine. 1. I have 125,000 miles on the car. Ive been getting this high rpm hesitation/sputter that happens around 6500rpm it seems like the car is going lean itll struggle to hit redline (7400rpm) however it only does it on the e85 map I am runnning. Engine Sensors Malfunctioning. My fuel pressure is fine, new knock sensor, no O2 codes. 2012 CR-V loses power and sputters at high rpm. Spark plugs are vital to providing the necessary ignition for the air/fuel mixture. You changed out your spark system and the settings should be between nothing other than a gap of .039-.043 unless you have a highly modified TT. Check the condition of the fuel injectors. So Ive noticed my 16 Gen Coupe 3.8 has a horizontal sputtering when going full throttle at high rpms. below 4000 it runs smooth through the gears. Only show this user. Also check your TPS for damaged wire or a faulty TPS it self. I always run 93 octane with a bottle of boost mixed in. Take off your carburetor, check the float and adjust the carburetor float as needed. If I feed it gas slowly and let the RPM go up slowly it will go to redline, but if its floorboarded it hits 5000 and sputters. IF that's good, make sure the flywheel key is intact. The engine was just rebuilt and the carb was also restored and rebuilt. How to Fix a Sputtering Car Engine. Grand Forks, North_Dakota. (FP secondary circuit high) I cleared the codes, took out the relay and cleaned the posts. wow, thank you for all the info BLUE. Jump to page: Results 21 to 29 of 29 Hard time shifting at high rpms. Only show this user. Five days ago I put new plugs and wires and cap and button on it and it has ran great and today it stared to sputter win it kicked in to its power band 4200rpm. Car idles really rough, kind of sounds cool like I have a high lift cam but very low idle and very rough. Dirty throttle body; If your car sputters when accelerating cold, another possible cause is a dirty throttle body. i turn the boost down or up, richen or lean it out more. Posted November 27, 2010. on the way there, the car dies (in front of a mustang of all cars) and i crank on itfinally get back to friends house. I let it sit for about 20 minutes and it would start up again. Reason #7: Damaged Cylinders. It is not always easy to diagnose the cause because there are so many factors involved here. 1) Bad Spark Plugs It pulls in air (where it is measured by the mass airflow sensor). Car runs great until 2500 rpm's then spits, sputters, jerks and wont go past that point. ok so whenever i get to about 4k rpms or higher my car seems to want to stop accelerating and just kinds sputters and shakes really bad and seems to misfire. At WOT, the bike starts stammering and losing power around 4800rpms. I had stutter problems at 4000 rpms ended up being my o2 sensor good power upto about 1800 rpm and then again above about 2100 rpm. Explanation #1: A Problem in the Fuel System. Here are five of the most common reasons why your car sputters when you accelerate. getting onto the freeway, car in 2nd gear at about 3K, i floor it and the car just bogs down. Problem does not exhibit in low gears. IF you have a charger, give it a FULL charge. 87+ cars use only the primary injector to start the car and idle and even drive at lower speeds with no boost, quick throttle opening high rpms and boost the secondary kicks in. With the car running fine unless at high rpm or full throttle it can only be one of two things, sensors or spark. The fuel pump regulates gas flow to the engine based on demand. 124,000 MILES. Only show this user. This is simple enough to fix. It now has 65,000 miles (110,000 km's) The only thing i can think of are new plugs and wires. Remove the air intake assembly. Keep me posted and we can go from there, If your running a performance oiled air filter like K&N, buy some MAF sensor cleaner and give it a good cleaning. If the engine isnt getting enough gas, it will sputter at high speeds. My car has been sputtering at 4k rpms while driving I had codes come up before for tps and cam position sensor replaced both and it worked perfect going pass 2k rpms fine. 2. I have a '93 VW Eurovan that has started occasionally sputtering at higher RPMs. I have a 1994 Mazda MX6 V6 2.5L. Prior to yesterday, the car ran great better than it has ever run before. Aug 11, 2001. After a quick inspection, I found the valve covers leaking. also when driving at highway speeds or sustaining any gear around 3000 rpms my car will start to misfire until it goes under 2k rpms again. However, plugs wear out and can no I could be wrong, but I do not suspect fuel delivery or spark problems because I think it might be bad gas. Generally when you have a missfire like you described it is either the coil wire, spark plug wires or on the coil tower. 2WD. its a shame because the e85 map is much faster than the pump map but It has this hesitation problem I dont get any codes most the times it happens but before i did 3 - Vehicle Speed: The car must be in motion (wheels spinning). No engine codes. Fuel pressure should always be at least 39 psi. Used to be around 4000-4500, now its about 5000-5250 I have noticed its worse with the 93 "Race" tune, it actually detonates with this tune, while running 93 octane fuel. SumpChump. Jumped out EGR to test it - still happened. My car sputters and hesitates as it rev's over 3800 rpm's. What spark plug wires are you running? Problem only exhibits under load (going up hill). figured it out when i pulled the dizzy off that night and couldnt move it I made sure I put the cap/rotor on in the same position, checked all the plugs for correct gap, now I'm at a loss. But,,,if u did tune up and now its happening, must be something u did in tune up. After cleaning the MAF again and double checking that the wiring is ok, the car is beginning to get better. we have a 2012 camry with about 65,000 miles on it. Mine pulls from 3000to 5000 RPM then starts to sputter. Thread starter 93 gsr; Start date May 19, 2010; 93 gsr rotor wires plugs cut off the cat and resognator thinking they were stopped up still ran the same until one night the car started acting like it was missing at a red light and shut off. Turn on the engine and check the fuel spray pattern on the throttle body injector if your particular vehicle has one. Hi all new owner of 09 redline with 83000 miles. Car is rough until approx 30mph. 4: check your air filter. Headers and dual 3" exhaust. Reason #4: Leakage Around the Intake Manifold. You should run about 14-16 initial and the rest in the mechanical advance, as you say 34-36 at 3k, 21 initial is too high. The car is sputtering at high rpm. Oct 27, 2005. Replaced those, as well as the COP boots for the cylinders floating in oil. Engine sputters and dies when at high rpms and under load . Check the resistance of the ignition coil using an ohmmeter. Car runs fine on the highway now, I hit 80mph to test it out with no problems. any input would be nice to I agree - typically spark plugs, spark plug wires, or coil. When I run my car without the MAF connected it runs relatively fine in comparison. almost like its in too low of a gear. My model is a 2012 Honda Touring with Nav. 3: check your fuel flow. At the same time, I replaced all spark plugs for the first time in 145'000 miles. Sounds like a secondary voltage breakdown. Faulty spark plugsSpark plugs are vital to providing the necessary ignition for the air/fuel mixture. However, plugs wear out and can noClogged fuel filterThe fuel filters job is to filter the fuel going to the fuel injectors and then enter the engine. A clogged fuelFaulty Fuel PumpThe same thing applies to the fuel pump as the fuel filter. If the fuel pump gets bad, it will cause the fuel pressure Car sputters when at a stand still, hesitates before engaging and has very poor gas mileage - Answered by a verified Auto Mechanic a loud knocking noise when cold and gets worse when gas is applied. Saturday night while I was returning home, the car started sputtering when I stopped at a traffic light and has been down a lot of power (I'd say 50%) throughout the RPM range. The best thing you can do is take your car to a mechanic There is still a slight miss at idle, some sputtering at very low rpms that clears up as rpms come up and a hard sputter at about 10 Trice the engine died on me while driving normal. Sep 17, 2007. AUTOMATIC. Your F150s engine is a giant pump. However if I restart the car, the problem disappears altogether. I shift into first at a normal rpm, and the car is sputtering and spitting, then after like 3k rpm, its as strong as ever and roars thru the rpms. If this happens, one of the warning signs that youll get is having your car sputter when accelerating cold. But how exactly does the throttle body the more i drive it the worse it gets or sometimes the more i drive it the better it gets. The hesitation can be low fuel pressure, low float level. Also use a timing light and check to measure the amount of advance at approx 3,000 rpm. I downshift, rpms jump right around 4-5k and as soon as I put my foot on the gas, the car starts breaking up and sputtering aggressively with no CEL in sight. At high rpm under WOT at around 6000rpm it will sputter and backfire. Ok, here is the story. Best thing to do is go to Auto Zone and have the car scanned for any DTC codes, There are just to many things that can be causing your engine to stutter on high RPM'S. It would take 10-12 hours of high speed running to fully charge a totally discharged battery. was hoping someone may be of assistance here. Reason #3: Faulty Oxygen Sensors. There's a little graph shown it STILL does the same damed thing. Clogged fuel filter: Dirty Fuel Injectors: Faulty Fuel Pump: Reason #2: Issues with the Spark Plugs and Wires. 2: check your initial timing as well as your advance curve. Dec 12, 2011. Also i get a sputtering engine sometimes at high rpm. Blt2Lst. Put your timing light on it and see what the timing is at various rpms. Reasons for a Rough Idle or High RPM. A sputtering engine can indicate a number of problems. RPM meter goes up when you accelerate and comes down when the car slows down. This is simple enough to fix. 05-16-2012, 07:10 PM. Hello everyone, 2 weeks ago the A ran fine, but in the last few days I've been having a problem with the engine. My plugs arent old, they are gapped at .046 because when they were gapped more the engine sputters even more. Its never an up and down or side to side motion, so I know its not tires or suspension. All you need to do, in this case, is to run a check and see to it that your fuel injector is in good working conditions. You might want to check the valve adjustment. So Ive noticed my 16 Gen Coupe 3.8 has a horizontal sputtering when going full throttle at high rpms. other then that the car runs well and the engine feels strong. If you are experiencing a rough idle or your RPM is running high when idling, then there are a variety of reasons for why this could be happening. When the car is driven at say 1/4 throttle, all through the RPM band (as best I can tell anyways, tach doesn't work), it runs fine. Reason #5: Damaged Mass Airflow Sensor. and a couple little backfires. I am considering getting a screamin deamon coil and a new ignition moduel. 2500-3000 miles since rebuild and since misfire code thrown. I did have my check engine light witch indicated my IAC was bad so I replaced it. I just started noticing a back firing and stumbling when you accelerate from idle. It is a mild small block 350 with 10.5:1 cr, stock ported cortec heads, edelbrock 600cfm performer, crane cam, edelbrock performer intake, stock gm HEI fully rebuilt and then reworked I can drive it normally with no weird sounds or anything that seems out of place. Spark plugs are black and sooty but they do not have oil or fuel on them. It will typically start when Im in 5th gear going down the interstate, and will continue at higher RPMs in all gears. Tags check check engine light engine high rpms light sputter. stuck metering rods/pistons, get the timing curve corrected then go from there. The other thing thats likely to cause gas to spit from the valve cover of your cart is your carburetor float being stuck open. 4 - RPM: Engine must spin to the RPMs that the ECU has programmed for your specific motor to engage VTEC. It sputter once and then it would still pull but not as hard to higher rpms in gears 1st, 2nd, and 3rd. 1: check your fuel pressure at speed. If you are using vacuum advance it may be retarded timing causing the problem. If timing is not increasing to that point then sparkk advance could be the prob. I noticed when I get to higher rpm's or when I step on it long enough on low rpm's my engine starts to sputter. It seems like I have a loss of power when accelerating and driving around 50-60 mph at ~2k rpm. That is what code reader said it was but still no change. If your Ford F150 has a sputter, it is most likely going to be caused by bad fuel system, ignition system, MAF sensor, or bad catalytic converter. So here's the problem: While I was driving a month and a half ago, my car started sputtering at 3,200 RPM in fourth trying to pass a guy. Bring the car home and let it idle. #5. start with the basics, and dont take anything for granted, even the new parts you put on as it is possible that even they are defective. It has been random at this Below are the top causes that a mechanic would look for. The car also sputters and rpm begins to fluctuate while driving. Problem still occurs, but after the gear install, it takes a higher RPM in 3rd to happen. Take off your carburetor, check the float and adjust the carburetor float as needed. Slower rpms I.e. I will be cruising along in 5th gear and decide to do a pull in third or forth. Thought I'd check it out again, so I passed another guy to figure it out, and it started sputtering at about 3,000 RPM. Also cleaned the MAF. High RPM Engine Sputter - PLEASE HELP. But, once I step on the gas harder, and go to maybe 1/2 - Full throttle, the car really starts to sputter and lose power, but only in the higher RPM range. Engine power loss and sputtering. Replace the needle in the carburetor or replace the whole carburetor. Do you know what the resistance per foot is on them? Gsr sputtering in high rpm. I It tracks as misfires on the AP but as soon as I go back to a normal RPM around 3k, I can pull just fine. Car stumbles almost like it's not getting enough fuel or good enough spark. All engines have a unique torque range within which they operate the most efficiently. Engine is a 4 bolt main with stock internals, Edelbrock Performer intake, Sanderson headers, 1" carb spacer, and a Holley 600cfm carb that was purpose built for off-roading by a local shop in Santa Clarita. 0. the service center said it is normal and is the high pressure fuel pump. New with Taylor spiro pro wires. The spray should be an even and partially atomized V-pattern. Jul 31, 2010. It has a fresh fuel pump, and I keep the torque tube filters clean too. It happenens with or without the auto-tuner engaged. The cut will be due to misfire/knock event, maps being off for mods on car, or a limiter being hit. There are several reasons why a motorcycle sputters. Replaced cam shaft sensor and crank shaft sensor. my car has started backfiring and sputtering BAD between 5000 and 7000 rpms. Recently it developed an issue, it sputters/stumbles and lacks power at high rpms. Hard time shifting at high rpms; Page 2 of 2 First 1 2. Mohamedsrt. Jump to Latest Follow 1 - 5 of 5 Posts As long as i keep the car under about 4000 rpms it runs fine. I have a 1977 440 Motorhome engine in a 1969 Charger. Inspect the components on the secondary ignition system. For your "popping" sound. Now for the issue: the truck fires up no problem, idles smooth around 600rpm's, and seems to run very well up to roughly 2500 rpm's. Failing Catalytic Converter. When the tuner is engaged, it stays right at 12.8 AFR like commanded. I transplanted the whole thing electronic ignition and all. Mohamedsrt. Answer (1 of 2): Lots of things can a plug or plug wire low fuel pressure, clogged fuel filter, a flat cam lobe ,timing, weak coil etc gotta listen to it to figure out what it is Reason #6: Blocked Catalytic Converters. Its never an up and down or side to side motion, so I know its not tires or suspension. And it never happens in low rpms, just between about 4.5k - 6.5k rpm. The vehicle is a 70 El Camino SS 396 with a Q-jet carb. He says the car should pull from 3000 RPM to redline. It runs best with the 87 "Street" tune. No other codes. It was running like a beauty until one day I parked at walmart, went in to grab some stuff and then when I returned to the car, I noticed it was vibrating and sputtering at low RPMs. Only driving it, could I tell. But either fuel is not keeping up or your coil is poooping out. Also need to richen up at much lower throttle position and at a quicker delay time doing so. Replaced TPS. July 1, 2020 by Jason. Check your rpm if your running at or near 6200 - 6400 your at the limiter. Code hasn't come back. It runs clean and seems to work very well at Wot. Ok so heres the problem, my car has been sputtering lately at high rpm's (right about 5000). drove it around earlier today and it only sputters when under load at mid engine speed. Bring your motor up to operational temperature and go for a drive. It will typically start when Im in 5th gear going down the interstate, and will continue at higher RPMs in all gears. Soon after driving off, the check engine light comes on.. The afr needs to be all in to richest point by 3-3.5 k rpm and evenly scaled leaner up each rpm region with only leaving the lowest one at stoich. I also get a little pinging now and then. Try to repeat the failure and note what RPM it's occurring at. However, if I floor it the engine bogs and I loose power and mph. If you have an older car with a carburetor, you may have a problem with your accelerator pump that gives the intake manifold extra fuel when needed under low RPM. 2. 2.7L. Only show this user. Ongoing problem. Has been rebuilt and is still having the same issues. Step 4. One of the most common causes of a sputtering engine is an issue with the vehicles fuel systemthe filter, pump, and injectors. Car is rough until approx 30mph. When I am under about 2000 rpm and I hit the gas my car sputters on and off almost stalling until I get into higher rpm. engine hesitates at high rpm: tsukuba speed: Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 9: 12-24-2007 05:36 AM: 2.2l Engine whistle at high RPM: boyleia1: Normally Aspirated Powertrain: 11: 10-24-2007 04:37 PM: chek engine light at high rpm: bigislandracing: Off-Topic: 18: 07-19-2007 07:22 PM: engine sputtering at High Rev full throttle Hi, I just replaced my idle air control but my car is still running at a high 1500 to 2000 rpm and I have test driven it, but will not allow me to go past thirty mph. The most common reasons are carburetor issues such as a vacuum leak, fuel leak, or tuning issues. It also does this sometimes during hard acceleration. Chances are it's bad, but give it a try. Basically my car starts to sputter or bog at high rpm and it just shoots fuel. Ok, I have an 02 svt focus. Question type: Maintenance & Repair. Anyway, over the next week, I kept driving it till it did it at 2,200 going uphill. 2006 Ford Escape XLT 3.0L DOHC - starts and idles fine. Check the vaccum advance and first be sure it is properly connected to the manifold vacuum port on the carb. This problem can come from several different sources depending upon your car age and type. Sep 19, 2009 (Edited) Only show this user. Asked by PoppaQ Mar 06, 2007 at 11:21 AM about the 1995 Pontiac Grand Prix 2 Dr SE Coupe. After about 15 minutes of hard driving at high RPM's, my '00 2.5RS will stall out at around 4500 RPM. Answer: Because the engine design does not deliver sufficient low-end torque to spin the driving wheels. 05-16-2012, 06:45 PM. Turn on the engine and check the fuel spray pattern on the throttle body injector if your particular vehicle has one. 6. FFR coupe #190 SOLD. Usually backfire sounds a machine gun and is not just one pop. yeah the car will sputter while driving at low RPM (not if cold) if i drive for about 45 minutes (warm temp) it will sputter then stop firing for a second backfires then start firing again and go's. 5. If I were you I'd replace the injectors and the wires. My best friends car was sputtering just like yours and all it needed was a fresh set of inje If your car has a faulty or a failing catalytic converter, the engine will sputter or run rough. Have your friend put it in neutral with the hood up and bring the motor up to the RPM you achieved failure at. Sometimes it's low fuel pressure or a partially blocked fuel filter that restricts sufficient fuel from getting to the engine at high RPM. Spark Plug. Car runs fine on the highway now, I hit 80mph to test it out with no problems. should start by saying that I am a Canadian CRV owner, and my model isn't listed in the dropdown when I was given a choice. 14 idle and 35 at 3000 rpm. This just started happening today on the way to work. A solid, poor or uneven pattern may indicate problems in the injector. It has been random at this It acts injectors..hesitation..lower rpm..gas mileage. I've found about 34 degrees total, all in by 3000 rpm is a good starteing position. If you not hitting the rev limit, then borrow a fuel pressure tester from an auto parts store and have a passenger monitor fuel pressure up to and at the point of the sputter. 2001 DODGE INTREPID. You have to trace all of it down the to gap on your spark plugs. Fuel Filters. Second could be a loss of fuel pressure. 4. RPM stands for Revolutions Per Minute, and it indicates how many times the crankshaft revolved to produce engine power. I have a '93 VW Eurovan that has started occasionally sputtering at higher RPMs. i am having the same thing at low rpms. Newer cars are accelerated by electronic fuel injection systems. Not sure what the equivalent is, but it's our top model. Wrap Up. During normal driving it does fine and I can get to 70+ mph if I go easy on the pedal. IF it only happens are very High RPms, then it is spark or fuel related. It will then run as normal for a few minutes and then sputter out to the point where I cannot get it over 1500 RPM. If the engine isnt getting enough gas, it could be a clogged fuel filter, clogged fuel lines, or problems with the fuel pump.