Where else to look? Possible fuel problem

[johnk]

I have no problems starting my car or driving it but the ride had become rough. So I hooked in my data logger to try and figure out which cylinder was causing all the havoc. I ran through the injector test and found #2 came out not affecting the idle. I checked the spark and the one comeing off the #2 plug was a lot weaker than the rest so I replaced the wires and the plugs since it had fouled badly. Still to no avail. I looked to fuel next. I checked the impendence all 4 injectors came out with 3.2 - 3.3 ohms. Checked for voltage from the harness. I have a digital so the meter reading was erratic but still registering some current then not and back and forth so I assumed it was getting a pulse. I tried taking the harness from 3 and putting it on 2 the idle didn't change from that either. With spark and fuel checked far as I know I'm not sure where to look or what else to double check for spark and fuel. The fuel and ignition are completly stock except the magnacore wires.

 

[johnk]

I've tried injector cleaner now with no results yet. Anyone else have any bright ideas? Is it bad for me to keep driving it around on just 3 cylinders?

 

[AmirTech]

When the trouble starts, try disconnecting injectors one at a time and see if it gets worse or stays the same.

If it stays the same, you found your bad injector.

Does it feel like you are running on 3 cylinders?

thanks,
Amir

 

[johnk]

when i disconnect injector #2 the idle doesn't change. The car idles and runs very rough feels a bit weaker. I've driven around with the injector unplugged and it feels the same as when it is plugged in. Is there a way to fix it or do I just have to buy new ones?

 

[johnk]

ok i've some what figured out my problem the cylinder is toast probably was running really lean before the injector or the cylinder failed. Now I need to replace the injector and rebuild the engine before snow :laugh:

Anyone know where to get some rebuild supplies I'd like to do the whole thing but really can't afford to.