misfire problem, probelms, probably a problem?

rewadferger · September 12th, 2010, 06:12 PM

ok people i need a little bit of assistance, out of nowhere my check engine light came on, saying cylinder one misfire, here is what i have checked and or swapped out, and i really cant think of anything else that it could be.
step 1. swapped coil packs
step 2. swapped spark plug wires
step 3. swapped fuel injectors
step 4. swapped spark plugs
and it is still coming up with cylinder one misfire.
and i did not swap in new parts, just moved what was in there around, because what part it is would have making the other cylinder misfire, or atleast should have. and after every part i swap i cleared the check engine code. also it seems that the light comes on at idle after the engine temp reaches normal.
any ideas or anything is more than helpful.

BAD98GT · September 12th, 2010, 07:09 PM

check your crankshaft sensor, it control the firing order. its located to the left of the crankshaft

rewadferger · September 12th, 2010, 09:37 PM

alright i will check that, im guessing need to check the voltage on it?

sharkbait · September 12th, 2010, 10:11 PM

check compression in that cylinder

BAD98GT · September 12th, 2010, 10:33 PM

Originally Posted by rewadferger

alright i will check that, im guessing need to check the voltage on it?

yes check the voltage and make sure its counting the pulses(signal)

also check the compression like shark said

Trick Tuners · September 13th, 2010, 12:17 PM

yup, low compression can cause a misfire.

September 12th, 2010, 06:12 PM	#1
rewadferger Newbie 1996 Mustang GT n/a Join Date: May 2009 Location: Garland, Tx. Posts: 18 iTrader: 0 reviews	misfire problem, probelms, probably a problem? ok people i need a little bit of assistance, out of nowhere my check engine light came on, saying cylinder one misfire, here is what i have checked and or swapped out, and i really cant think of anything else that it could be. step 1. swapped coil packs step 2. swapped spark plug wires step 3. swapped fuel injectors step 4. swapped spark plugs and it is still coming up with cylinder one misfire. and i did not swap in new parts, just moved what was in there around, because what part it is would have making the other cylinder misfire, or atleast should have. and after every part i swap i cleared the check engine code. also it seems that the light comes on at idle after the engine temp reaches normal. any ideas or anything is more than helpful. __________________ 96' GT 4.6L V8 2v non-P.I. w/ P.I. Intake Ford Racing 3.73's, Aluminum Driveshaft, Hi-Flow 24lbs injectors, Hi-Flow Fuel Pump Steeda Upper/Lower Arms, Under Drive Pulleys Upr X-pipe, Magnaflow Mufflers w/turndown tips Kyb Front/Rear Shocks

September 12th, 2010, 09:37 PM	#3
rewadferger Newbie 1996 Mustang GT n/a Join Date: May 2009 Location: Garland, Tx. Posts: 18 iTrader: 0 reviews	alright i will check that, im guessing need to check the voltage on it? __________________ 96' GT 4.6L V8 2v non-P.I. w/ P.I. Intake Ford Racing 3.73's, Aluminum Driveshaft, Hi-Flow 24lbs injectors, Hi-Flow Fuel Pump Steeda Upper/Lower Arms, Under Drive Pulleys Upr X-pipe, Magnaflow Mufflers w/turndown tips Kyb Front/Rear Shocks

September 12th, 2010, 10:11 PM	#4
sharkbait Hooo Ha Ha 1997 Mustang GT 11.65 @ 115 Join Date: Apr 2009 Location: Pasadena MD Posts: 9,743 iTrader: 10 reviews	check compression in that cylinder __________________ 410rwhp 520rwtq @ 12.9 psi

September 13th, 2010, 12:17 PM	#6
Trick Tuners MM Fanatic KB'd GT Join Date: Nov 2006 Location: San Diego Posts: 4,467 iTrader: 3 reviews	yup, low compression can cause a misfire. __________________ Check out my forums for stuff on troubleshooting, tuning, etc We teamed up with Socal Performance Racing to bring dyno tuning to San Diego. Be friends with us on FB

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Posted By	For	Type	Date
Thread Sable Misfire problem \| Auto Repair \| BoardReader	This thread	Refback	October 16th, 2010 10:04 AM

September 12th, 2010, 07:09 PM	#2
BAD98GT Enthusiast Join Date: Feb 2010 Posts: 953 iTrader: 0 reviews	check your crankshaft sensor, it control the firing order. its located to the left of the crankshaft

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