My 90 300zx twin turbo is running really rich. It has had a used jspec motor put in with 30k on it. I was told by Nissan that there is high fuel pressure and fast injector pulse. They aslo said they couldnt communicate with the diagnostics on my computer. It has a perfomance ECU. It goes thru about a 1/4 tank of gas in 30miles, backfires in the first 3 gears, and runs really rough. Lacks power, but at higher speeds its not as bad, although goes thru gas alot still. The spark plugs and connectors were replaced Is the problem electrical? What is causing this? Please help!
2006-06-29
15:57:45
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2 answers
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asked by
joey9401
1
in
Maintenance & Repairs