wats up guys, my 91 ka24de the ecu is basically telling my injectors to dump major fuel. i am running rich like crazy i am talking 5 to 10 mile per gallon. i check the signal coming from the ecu to the harness connector of the injectors it check out ok. i was thinking maybe my coolant temp sensor is telling the ecu that the engine is cold when is not, but that also ok. now i am about to check my evap, vacuum test. my mass air flow connector and the ecu connector for it i think its pin number 26 (both volt and resistance). if any one is familiar, please post!
thanks
big problem
Re: (DALAZ_68)
no codes present.
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nismopu
- Posts: 310
- Joined: Fri Jun 24, 2005 4:44 pm
- Car: 1987 Nissan 300ZX
1997 Nissan Maxima
1976 Datsun 280Z Turbo
Re: (kod240kat)
It is most likely your fuel pressure regulator thats causing the issue. I had the exact same thing once with a 240. went through the exact same diagnosis as you did as well, but when we swapped out the fuel rail it ran perfect. One to two psi of fuel pressure makes a HUGE difference trust me. peace.
Re: (nismopu)
i am about to test the regulator and get back to you
Re: (nismopu)
it came out bad i did a vacuum test and everythingnow you say you replace the whole rail, why?i am going kat if i do is the same oem rail good