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joeg
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I have 1986 GTS coupe it has a RB20det motor in it is running rich when i start replace a few part still no good I have had the ECU checked but I have been told it may be faulty

not sure which way to go any help would bee great thanks.

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no mods every thing stock first time of problems the motor back fired and since then have not been able to find the problem.have replaced flow meter ,oxygen sensor, igniter. have checked fuel pump good pressure .

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1986 gts coupe... no such car?

who tested the ecu and told you it might be faulty... it is working or it isnt.

Edited by GH05T
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I'd hazard a guess / something to look for it could have been an intake backfire and has popped off an vacuum line somewhere. Could smoke test it...

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