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fuel related question...

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xcelr8n

20+ Year Contributor
1,854
5
Jan 31, 2003
toronto,
alright guys, a couple fuel related questions for ya..
first im running with a maf-t for reference... now, mymid and high trims are where they are suppossed to be... but my low fuel trim is at 140% and I cant seem to lower it any.
and second, at wot and 100%tps, my around 5500rpms my pulse width is 22ms... almost 100% dc...

will re wiring my fuel pump help this cause? or should I just go and buy the real deal... I wasnt planning on buying these things just yet.. curious if the rewire is actually worth it, and will i see any results by doing so... oh ya btw this is on a 14b at 15psi.
 
I haven't done the rewire I just bought the pump. 140% is a lean running condition that the ecu is trying to compensate for. Which is sounds like you already know. Check your fuel pressure. maybe you have a clogged fuel filter or somethin.
 
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