North American Turbocoupe Organization



check turbo light
kevcoheat Offline
Banned
#1
OK i have looked at everything, time to ask the experts:
i just put an 88 TC motor into my 86, kept the T3 turbo in it and the intakes. she runs great, but since i've got it back (even before the boost being slightly raised) when i let off the accelerator and hit the brakes the check turbo light comes on and buzz's, when i push the gas down again it goes off. anyone dealt with this problem before?
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Jeff K Offline
Administrator
#2
Either the overboost switch is going bad (pretty common problem), or you have some weird grounding problem where the brake light circuit is seeking ground thru the overboost circuit. I would just disconnect the overboost switch and be done with it.

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Jeff Korn

88 Turbo Coupe: Intake and exhaust mods, T3 turbo at 21 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 // 02 Taurus Vulcan(wifes car)
Jeff Korn

88 Turbo Coupe: Intake and exhaust mods, T3 turbo at 24 psi, forced air IC, water injection, BPV, Ranger cam, subframes, etc., etc.
86 Tbird 5.0 (original owner): intake, exhaust, valvetrain mods, 100 HP N2O, ignition, gears, suspension, etc., etc.
11 Crown Vic Interceptor
14 Toyota Camry (wifes car)
95 Taurus GL Vulcan winter beater
67 Honda 450 Super Sport - completely customized
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