My SR20DET Problem - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

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

xska · 07-06-2010, 01:30 PM

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

Quote:

Originally Posted by GripEnemy1992

whats the ignitor chip?

GOOGLE IT

good gah

xska · 07-06-2010, 05:30 PM

Quote:

Originally Posted by GripEnemy1992

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.

xska · 07-06-2010, 06:01 PM

Usually... when ignitor goes bad, no spark to all the cylinders, not just one.

greenman100 · 07-06-2010, 06:36 PM

Quote:

Originally Posted by GripEnemy1992

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

Quote:

Originally Posted by s14jesse

check ur coil pack harness

omg.........

07-06-2010, 01:21 PM	#1
GripEnemy1992 Join Date: Dec 2009 Location: Centerville, Ut Age: 31 Posts: 14 Trader Rating: (0) Feedback Score: 0 reviews	My SR20DET Problem 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

07-06-2010, 03:14 PM	#4
jspaeth Nissanaholic! Join Date: Mar 2006 Location: Philadelphia suburbs Age: 39 Posts: 2,347 Trader Rating: (7) Rides Gallery: jspaeth Feedback Score: 7 reviews	Could be a bad ignitor chip....try to swap that out for someone else's. __________________ Daily driven

07-06-2010, 07:39 PM	#12
jspaeth Nissanaholic! Join Date: Mar 2006 Location: Philadelphia suburbs Age: 39 Posts: 2,347 Trader Rating: (7) Rides Gallery: jspaeth Feedback Score: 7 reviews	Omg......... __________________ Daily driven

07-06-2010, 10:02 PM	#13
240sxspeed Zilvia Member Join Date: Nov 2007 Location: DITRY JERSEY Age: 44 Posts: 288 Trader Rating: (5) Feedback Score: 5 reviews	smh u big dummy __________________ HOME OF THE LOWBALLERS AND INTERNET THUGZ

07-06-2010, 01:30 PM	#2
xska Join Date: Jan 2009 Location: torrance Age: 56 Posts: 39 Trader Rating: (0) Feedback Score: 0 reviews	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?

07-06-2010, 02:47 PM	#3
GripEnemy1992 Join Date: Dec 2009 Location: Centerville, Ut Age: 31 Posts: 14 Trader Rating: (0) Feedback Score: 0 reviews	i will try that what do you mean make sure the plug is grounded like the threads? and it misses all the time

07-06-2010, 03:32 PM	#5
GripEnemy1992 Join Date: Dec 2009 Location: Centerville, Ut Age: 31 Posts: 14 Trader Rating: (0) Feedback Score: 0 reviews	whats the ignitor chip?

07-06-2010, 05:55 PM	#8
GripEnemy1992 Join Date: Dec 2009 Location: Centerville, Ut Age: 31 Posts: 14 Trader Rating: (0) Feedback Score: 0 reviews	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.

07-06-2010, 06:01 PM	#9
xska Join Date: Jan 2009 Location: torrance Age: 56 Posts: 39 Trader Rating: (0) Feedback Score: 0 reviews	Usually... when ignitor goes bad, no spark to all the cylinders, not just one.

07-06-2010, 07:01 PM	#11
GripEnemy1992 Join Date: Dec 2009 Location: Centerville, Ut Age: 31 Posts: 14 Trader Rating: (0) Feedback Score: 0 reviews	problem fixed after hours spent diagnosing all it was is the ecu was only half plugged in. hahhaha

07-06-2010, 10:09 PM	#14
s14jesse Zilvia Junkie Join Date: Jan 2008 Location: highland (909) Age: 35 Posts: 410 Trader Rating: (6) Feedback Score: 6 reviews	check ur coil pack harness