Hey peepz..
i have an ae71 that ive done a bigport 4age conversion into and its running super rich, and whateven is fuel economy lol??
The engine itself is completely standard and am running 2-1/4 extractors and full exhaust with hi-flow cat and a rear muffler box, standard fuel reg with a vl external pump off a 1litre surge tank in the boot thats filled with a facet style low volume/low psi lift pump.. the vl pump flows @130lph which im told is the approx factory flow rate for the ae82 it came out of? Clarification on this would be good if possible also.
fuel economy is f@&king shithouse also which i assume is related to how rich its running..
any ideas on how to rectify this whole situation without spending mega bux would be greatly appreciated..
i have considered it could be the o2 sensor or something to do with the ecu?? like i said any other ideas and input would be greatly appreciated.
thanks
High fuel pressure will cause it to run rich or faulty map sensor or 02 sensor