View Full Version : My SR20DET Problem
GripEnemy1992
07-06-2010, 01:21 PM
so cylinder two is misfiring and i dont know why, so far i have checked compressiion, 150, and i swapped coil packs and i swapped spark plugs and also fuel injectors but it still doesnt fire cylinder two, i need more suggestions on what to do
Thanks
Jordan
801-891-8188
Start engine with coil pack off the head and used spark plug in boot, make sure plug is grounded to valve cover.
This way you can see if it's sparking or not.
If it sparks, then more like fuel problem....
Is it missing only at idle?
GripEnemy1992
07-06-2010, 02:47 PM
i will try that what do you mean make sure the plug is grounded like the threads? and it misses all the time
jspaeth
07-06-2010, 03:14 PM
Could be a bad ignitor chip....try to swap that out for someone else's.
GripEnemy1992
07-06-2010, 03:32 PM
whats the ignitor chip?
greenman100
07-06-2010, 04:17 PM
whats the ignitor chip?
GOOGLE IT
good gah
i will try that what do you mean make sure the plug is grounded like the threads? and it misses all the time
Just let the tread section of spark plug sit on valve cover and position it so you can see the spark.
If it's missing all the time then, it's not vacuum leak.
You can also remove valve cover to check #2 locker arms to see it's there.
GripEnemy1992
07-06-2010, 05:55 PM
can it even be the ignitor chip from what ive heard if it was bad the car wouldnt run but it does, so can that even be the problem cause it runs.
Usually... when ignitor goes bad, no spark to all the cylinders, not just one.
greenman100
07-06-2010, 06:36 PM
can it even be the ignitor chip from what ive heard if it was bad the car wouldnt run but it does, so can that even be the problem cause it runs.
Wrong, one channel of the ignitor can fail.
Swap coilpacks between cylinders, if the misfire moves cylinders, there's your culprit.
Otherwise, its wiring or ignitor.
GripEnemy1992
07-06-2010, 07:01 PM
problem fixed after hours spent diagnosing all it was is the ecu was only half plugged in. hahhaha
jspaeth
07-06-2010, 07:39 PM
Omg.........
240sxspeed
07-06-2010, 10:02 PM
smh u big dummy
s14jesse
07-06-2010, 10:09 PM
check ur coil pack harness
greenman100
07-06-2010, 10:19 PM
check ur coil pack harness
omg.........
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