Ignition Problems

**00A4SS** · 05-18-2007, 12:48 PM

I just replaced the Bosch platinum plugs with NGK TR5 Iridiums, and a set of 8.5mm superconductor wires, and now I believe that the passenger side bank is not firing at all. The SES light just blinks when I start it, and the code comes up as multiple cylinder misfire. It smells as if running rich, seeing as how I believe to only have the 4 cylinders firing. It sucks, as it is beautiful weather, and I am stuck driving my Z/71 Tahoe... Any tech help?

**lancesT/A** · 05-18-2007, 12:53 PM

maybe your pcm is missed up or you just put the wires on their wrong or maybe your car is just shitting itself

**lancesT/A** · 05-18-2007, 01:07 PM

oh wait you have coil packs, so that would make it hard to cross the wires, but neways did you gap the plugs properly and if all else fails have you unplugged the battery and let the computer reset itself.

**slims00ls1z28** · 05-18-2007, 05:34 PM

I'd check the main harness to the coilpacks make sure it's plugged up if an entire bank is not firing.

**00A4SS** · 05-24-2007, 02:36 PM

Ok, so I have tried it all, yet to no avail... and the Gen III guru isn't on the base... he is out till the 4th.... Any other suggestions? I'm almost ready to let the shop figure it out... and I'd rather hang myself than let it go to some guy...

**lancesT/A** · 05-24-2007, 03:49 PM

well kaz your gay....lol anyways maybe it has something to do with your ignition computer or one of your coil packs are messed up take a voltmeter and test them individually to see if one is messed up