Six-speed manual hesitation when punching the gas
Six-speed manual hesitation when punching the gas
The car idles fine, if I slowly pick up speed it's also normal. No check engine light but I did put regular gas in today. When I punch the gas in any gear it hesitates and I feel a small vibration. If I slowly pick up speed in any gear it drives normal it's when I punch the gas even a little bit to pick up speed quicker that it hesitates and I feel like it vibrates a bit from the back. No slip light or anything
It seems like it could be coil pack 2 and it's causing the knock sensor to kick on. Past few days a heard two pops It sounded like when you open a Snapple bottle.
I'm going to change the coil and spark plugs see what happens thanks for your help
Knock sensor doesn't cause a misfire either, on every positive detection it makes the ECM pull -2° timing, every rotation without knock the ECM will add back +1° timing. These engines are always right on the edge of knocking and it usually detects quite a few on a hard pull, this isn't abnormal for this engine.
That code is almost always the knock sensor SUB HARNESS which is a known failure part, the insulation crumbles off the wire on the sub harness.
That code is almost always the knock sensor SUB HARNESS which is a known failure part, the insulation crumbles off the wire on the sub harness.
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You're getting knock and misfires due to shitty gas. Fill up with premium and see if it clears up.
The fact you say it does it when punching it means it happens when under load, that's when the ECU advances timing and because it's tuned to premium you start getting knock. If still doing it after a full tank of premium, then start diagnosing the codes, etc.
The fact you say it does it when punching it means it happens when under load, that's when the ECU advances timing and because it's tuned to premium you start getting knock. If still doing it after a full tank of premium, then start diagnosing the codes, etc.
Well well I found the problem there's oil in the tube. Seems like the plug was really loose and so was the coil pack. I know I have to change my valve covers but what do I do to clean out the well inside just so it works for now
Just taking the spark plug out lets all the oil drain out into the cylinder. It will smoke for a few seconds when it fires up but that's pretty much all you need to do.
The center electrode on your spark plug is 100% worn off, those things probably have 150k on them and should have been replaced about 100k miles ago. I'm betting the rest of your spark plugs are in the same condition, replace them all.
Coil pack is probably fine, just wipe it down, I would pull the coils every oil change and get the oil out of the spark plug well tube. You can limp it along like that for quite a while until you have a good time to change out those valve covers.
The center electrode on your spark plug is 100% worn off, those things probably have 150k on them and should have been replaced about 100k miles ago. I'm betting the rest of your spark plugs are in the same condition, replace them all.
Coil pack is probably fine, just wipe it down, I would pull the coils every oil change and get the oil out of the spark plug well tube. You can limp it along like that for quite a while until you have a good time to change out those valve covers.
Just taking the spark plug out lets all the oil drain out into the cylinder. It will smoke for a few seconds when it fires up but that's pretty much all you need to do.
The center electrode on your spark plug is 100% worn off, those things probably have 150k on them and should have been replaced about 100k miles ago. I'm betting the rest of your spark plugs are in the same condition, replace them all.
Coil pack is probably fine, just wipe it down, I would pull the coils every oil change and get the oil out of the spark plug well tube. You can limp it along like that for quite a while until you have a good time to change out those valve covers.
The center electrode on your spark plug is 100% worn off, those things probably have 150k on them and should have been replaced about 100k miles ago. I'm betting the rest of your spark plugs are in the same condition, replace them all.
Coil pack is probably fine, just wipe it down, I would pull the coils every oil change and get the oil out of the spark plug well tube. You can limp it along like that for quite a while until you have a good time to change out those valve covers.
Glad you found the misfire source. Since the valve cover is leaking, I would put a blob of dielectric grease on the tip of the coil. Will help with oil contamination. Won't be perfect, but it'll last a little longer when that tube fills up again.
Like recommended above, I'd check the other plugs. If that was the only bad one, I'd then check injectors. Electrodes burning off can be a sign of getting lean. Hopefully just a bad coil pack though and you're good to go.
Like recommended above, I'd check the other plugs. If that was the only bad one, I'd then check injectors. Electrodes burning off can be a sign of getting lean. Hopefully just a bad coil pack though and you're good to go.
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Kicknshift
G35 Coupe V35 2003 - 07
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Aug 24, 2015 01:00 PM





