Ok fellas... i have a 06 g35. Twin turbo, built motor. I was driving this weekend and car lost power n died. Battery died pretty fast afterwards as well. Ive been trying to troubleshoot this all week and its driving me crazy! I found that i wasnt getting spark anymore. Tiny spark every so often. Fuel is good. Checked all plugs, cylinders, and coils... all good! Checked fuses by driver kick panel. Replaced ipdm. I also Have a big deisel truck battery spinning it over fine. Still no constant spark! Reflashed ECU.
Alarm system, NATS is ok. I replaced both cam sensors and crank sensor also. Still no spark!
Please help guys!

 

How many miles are on the car?

 

78k. But brand new built motor. Not even 2k miles on it yet.

 

Im so disappointed.

 

That sucks, I had all those problems, but it was the NATS causing the car not to spark, just kept cranking over. Did you check all your wiring going into your ECU to make sure no wires had backed out of the harness plug? With no codes, this would be a bitch to trace.

 

Yea no codes... im assuming the only thing left would be wiring to check.
I guess NATS is working properly. Light blinks and goes off when key is on. I thought it was that because i just had a key fob made for it like a month ago. But light seems to be working properly.

 

Ive never really even got to run the car yet. Been working on this thing for 2 years now. Bummer!

 

if you feel you've tried and checked everything, just take it to a shop. Corner 3 if you're in SoCal

 

Thats my extreme last resort. Im hoping to hunt down the issue without having a crazy repair bill. J/S
Acutally... posting here on G35 driver is my second to last resort..
lol