RUNNING REAL RICH

I'm running extreamly rich, i changed the fpr and cleared the codes all 11's thne a couple day's later i thought that i would check the codes again and 42 came right back up so i'm like what the hell. is there any thing else that would bring 42 up. if so the help would be apreciated. thanks

You check that 1 1/2" rubber boot between the intercooler and the turbo yet?

Thats what did it to mine

Also check that 2" rubber boot between the intercooler and the throttle body


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Michael "Jonesy" Jones
87 Medium Red Clearcoat Metallic 5 speed
2 Tone Leather Interior, All options including factory sunroof/moonroof
168,500 miles - So Far
Mainly stock, K&N Filter, custom ram air
New paint job COMING SOON(repainting factory med. red with ghost flames.)

You changes the FPR, but did you check the actual fuel pressure? The new reg could be bad / out of spec right out of the bax... rare, but does happen. If the fuel return line is pinched / restricetd, the FPR wont be able to control the pressure.

A out of spec ECT telling the EEC the motor is colder than it really is can cause a rich condition. A out of calibration VAF can also cause a rich condition.

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Jeff Korn

88 Turbo Coupe: Intake and exhaust mods, T3 turbo at 20 psi, forced air intercooler, water injection, bypass valve, Ranger roller cam, subframes, etc., etc.. // 86 Tbird 5.0 (original owner): intake, exhaust, valvetrain mods, 100 HP nitrous, ignition, gears, suspension, etc., etc.... // 91 Escort: Bone stock winter car // 00 Windstar (wifes vehicle)