#3, #4 pistons not getting a spark. i have replaced spark plugs, wires, coil, imrc cable assembly, and have nothing. please help.
Dec 27, 2010 at 10:37 PM
#3,4 pistons not getting spark.
2002 MERCURY COUGAR
PJSUPERCAT
- MEMBER
- 4 POSTS
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Inspect and test the crankshaft position sensor-on lower front of engine
Dec 27, 2010 at 10:54 PM
i have been troubleshooting wires from the coil to the PCM. pin 3 (brown solid green stripe) read to pin 52 on PCM connector good for ohms. i was told it may be time to change out the pcm. does this sound like it is going on the right track?
Dec 27, 2010 at 11:56 PM
The CPS tells the computer which cylinders to fire-
Dec 27, 2010 at 11:58 PM
ok i will go with that next. the how exactly do i test and inspect the crankshaft position sensor? detailed instructions and an ipb would be mostly appreciated.
Dec 28, 2010 at 12:14 AM
i found out where the ckp is so now i have to wait for autozone to open up. hopefully this is it man, it would do me a great deal of saved time and money. especially money! about 40 bucks vice 500+ for the pcm. going with the ckp first, thank you rasmataz.
Dec 28, 2010 at 1:21 AM
You're welcome and TY for using 2carpros
Jan 9, 2011 at 8:03 AM
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