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Quick update, I just finished my fuel pump rewire. I get 8V at idle and 14V on boost. I can't drive yet because I accidentally bent my front bar under my downpipe so I'll take that off and straighten another day. Then I'll pull my supplemental relays to see what the pump voltage is with:
(1) what the factory Relay #3 can do with only additional wires and 10 awg to Relay #3.
(2) what one additional relay in parallel with factory (using same 10 awg).
(3) what one additional relay in parallel with Relay #3 using separate 10 awg wires.
(4) what two additional relays in parallel with Relay #3 using two separate 10 awg (got 14V tonight but will it hold?).
At the same time, I'll log my runs to see how much AFRs drop below 11.5. IDC will probably continue hitting 104%, but that's fine since log reads about 20% high. I think someone tested until until AFR didn't drop with increase.
Last edited by 2006EvoIXer; Mar 11, 2018 at 10:39 PM.
Finally installed my ethanol sensor and I have E79 in my tank. Went on a few freeway pulls and my AFR now drops to 10.1 around 6000 RPM (this is on full 14.0-14.1V)!
Last edited by 2006EvoIXer; Mar 16, 2018 at 09:25 PM.
My car took a detour. Started to sound like a WRX. Couldn't figure it out until tuner suggested looking at spark plugs. Noticed black carbon streak (probably from rewired pumo running too rich). Then decided to do compression test. Got 115, 120, 90, 115. Went bavk to do Leak Down Test because I'm not convinced it is piston rings since it still ran strong. Turned out to be leaking intake valve (passenger side of cylinder 3). I can see the light!!!
Mar 11, 2018, 10:32 PM
