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94 GT: Anyone have any suggestions for these codes thrown?
OK, so Rick (the Prez) congratulated me at Mustang Mania this year on making it to the event without any issues. Well, he jinxed me. When I went to leave the event, as soon as I started the car it began sputtering backfiring through the plenum, stalling, generally refusing to rev when given throttle and generally giving me mega-cr@p.
I coaxed it home and read the codes: 511 twice and 157 twice. Also, the Anti-Lock light came on a couple of times. Here's what my manual says:
157: Mass Air Flow sensor fault, low voltage. Test Condition: Continuous memory.
511: Read Only Memory (ROM) test failure. Test Condition: Key On Engine Off (KOEO).
My ECM has a Moates chip on it.
OK, how bad is it? New MAF (just replaced in the spring)? New Moates chip (just reflashed in the Spring)? Just a loose chip? New ECM? Grounding issue? All ideas welcome.
Bruce
TFS TW heads, rockers, 75mm intake, cam, 75mm TB, CAI, MAF, DeatschWerks 35# injectors, Aeromotive rails/regulator, 255 pump, BeCool rad, alum water pump, MSD 6A/coil, alum flywheel, PP, driveshaft, McLeod clutch, Torsen T2R, 3.73, 31spline axles, 17" 95 Cobra R, NT-05 255/275, MM CC plates, coil-over (Bilstein), rlca, K-brace, A-arms, SF conns, Cobra brakes, =len shorties, 2.5" SS Hpipe, Borla CB...
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