Bummer !!!

[yodawill2000]

Well I FINALLY got a day off to finish torquing and put it all back together.
Fired right up but I have the middle cylinder on the drivers side bank not firing.
Eliminated the coil pack and plug, and the injector ohms out ok.
Need to check compression.
Is there a fairly easy way to verify the plug is getting fire ?
Its either that or the injector is clogged. But I didn't get a CEL at all.
FYI with all new pullys and tension roller it sure is a lot quieter !

[GerryO]

Use a noid light to test for power to the injector? No codes, even though the CEL isn't ON?

http://www.ehow.com/how_4453009_test-vo ... -noid.html

Use a spare and properly grounded coil pack equipped with a spare plug to test for spark?

Think of simple things (electrical connectors/fouled plug/harness wiring) and good luck!

[yodawill2000]

I moved the coil pack and plug to the forward most cylinder on that side and the problem stayed on the middle cylinder.
I cleaned the Injector connector but that didn't help.
I will get a noid light and see if its a electrical issue.
Its just weird that i didn't have a miss when I parked it.
And nothing I did had anything to do with electrical.

[GerryO]

Does the FSM trouble-shooting section have anything to say? Check/clean the connector to the CAS? Disconnect and reconnect the connector to the ECM? And isn't there an ignition module too?



Just one faulty wire/connection would do it. Sounds like an electrical related no spark or fuel issue.

[yodawill2000]

I will clean and reseat the cas connector tonight.
But I would think that would affect all cylinders ?

[GerryO]

http://tech.aus300zx.com/ignition/ignition.htm

PTU?

I'd follow problem cylinder injector and coilpack harness wires to their connection points.

[yodawill2000]

Must be Livin' right !!
Got a compression test, All good.
Hooked up a Noid tester , All good.
Scratched head. Hooked everything back up and BAM !!
Purrs like a kitten !
One would think it was a loose connection but I cleaned a unhooked/hooked everything several times.
I'm thinking that injector was clogged from sitting.
I put a bottle of redline in with a tad over a quarter tank of fuel yesterday, and I suppose it did its magic !!

On the Road again !!
300K here I come !!

[GerryO]

Sweet! That's an almost 20 year old J30 for you.



True electronic and mechanical marvels, when everything is runnin' like it oughtta.

[J30tChumpCar]

After totaling the first j30 racecar we transferred that perfect running engine in car 2, it ran smooth for the first 15 seconds then developed a miss that was tracked to a open injector. I broke a injector in a crash?
Weird stuff happens.