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Registered
Join Date: Jul 2008
Location: Central Washington State
Posts: 4,435
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Just to add to Brian's comments, if you do indeed have poor electrical connections - particularly to the WUR, that could cause you to develop a rich condition when the car is warm (no power to the WUR would cause it to revert back to cold start enrichment settings). The same could happen if you lost the rear fuel pump relay, since the power from that is what feeds the WUR.
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Mark H. 1987 930, GP White, Wevo shifter, Borla exhaust, B&B intercooler, stock 3LDZ.
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