Quote:
Originally Posted by overtureZ
Does anyone just have the CJM Fuel Hat and the aeromotive 340 Pump installed?, not the return!
I finished my install the yesterday, threw some codes, fuel temp and fuel level sensor high output.
Double checked my pin out and reinstalled, reset the codes and the ECU and the codes haven't come back.
THE PROBLEM:
I was able to get the car to start RANDOMLY over very spaced out intervals, like a completely cold start and the car fired right up... idled a little rich due to the jump from a 255 to a 340 (Jon Parham is adjusting once I figure this out)
Literally let the car idle for 10 minutes so I could datalog a idle, and then turn the car off and tried to crank it back up and nothing, it will spin like crazy but just wont fire up?????
Any help would be greatly appreciated
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Just ideas, but the majority say check the wiring so I would go with that first. Defintely let us know what you find!
Sounds to me like the cylinders are just flooding and possibly getting the spark plugs wet. I think this because you mentioned it will start in large intervals. If it is priming then the pump should be working.
I did a twin turbo kit on my first Z and after about a month the car died while driving, and was narrowed down to the fuel pump. I had someone replace the pump because I was not in the area and had no issues after that. When i did have my issue, the pump was NOT priming which i do not know the exact cause except maybe a connector got fuel in it and over time, failed. When I connected the pump to the battery of the car, it worked great ruling out a bad pump and bad wiring, so something with the actual connectors was messed up. Now because It would not prime and the pump worked when connected to the battery, that's where i concluded it was probably the connectors and once replaced everything worked.
Yours is priming so that's good, it's getting a signal and works. It could be the connectors so I am not ruling that out, however, i feel that if the connection was not good, the pump would not operate, die while in idle, or just wouldn't start back up at all. You
MAY need to get a fuel return ( stuck with my walbro 255 when i had the turbo Z) system.
I got this off the Aeroomotive site but i didnt read to far into it, im at work and i think its a different pump (stealth):
The Aeromotive Stealth 340 Pump is typically not listed as compatible with OEM returnless fuel systems, for good reason. #6
https://www.aeromotiveinc.com/tech-h...th-fuel-pumps/
They were talking about fords though........
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Again, just ideas but the majority says wiring and check it so i would go with that especially checking the connectors. Good luck and definitely let us know what you find!