yet again i've an issue where the engine is running lean.
I've literally had enough of chasing my tail over this because it keeps on coming up almost on a year by year basis.
I converted the car from my old 3a S14a so basically everything has been swapped over to a new shell, i then had to send it to a company because of a wiring issue who sorted that wiring got the car running properly...they then said it was running a teeny bit lean and did i want them to adjust fueling with my SAFC, i agreed, they adjusted, then a few days later the engine started to rattle, i spoke to mappers about it and someone mentioned "oh yeah i remember that one...the engine was really rattly" ...it had never rattled prior to that point.but lesson learnt
I bought another engine very early spring.
then about the same time i posted up about running lean again on the new engine and had been hitting 12's on AF then after posting, a kent member kindly lent their Z32 AFM which i plugged in went for a spin and it instantly hit 11.5.
so i bought a brand new from Nissan Z32 AFM and the fcuker is still hit around 12's and only very occasionally it'll go to 11.5
so ive replaced:
Rubber fuel lines in engine bay
fuel filter
pump had been hard wired (by mappers)
smoke tested and pressure tested the entire boost system, no leaks
new Z32 AFM
now weirdly last weekend i changed my air filter, didn't disconnect the AFM pulled everything free changed filter, then on way home max it would hit was 14 on AFR *****
so i really do think this is wiring related , Norfy has suggested doing a continuity test from ECU to Z32 which I've yet to perform but is there anything i can test, check disconnect change or whatever, I'm getting really fcuking bored of this.
also a side note, i did connect consult on saturday and wiggled wiring whilst car was idling and checking AIRFLOW, but in hind sight i probs won't see any issues sat there idling???! as in needs to be boosting?
i really do need help or advice on this, and appreciate any input or suggestions
**** wiring had effectively changed position