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T-Rex Fuel pump/wiring relay 200 1983

posted by  someone claiming to be philip bradley on  Thu Mar 14 23:59 CST 2002 [RELATED]

I hope you are not changing pumps because you have encountered the factory overboost cutout switch. This is not the solution. The solution is to adjust the overboost switch. Remove it, heat it up, take out the epoxy covering the adjustment screw, back out the adjustment screw, test new setting with a Mityvac pressure tester and a test light, and reinstall. That switch is normally closed. When enough pressure comes, it opens, breaking the ground for the fuel injection. If you want to bypass it, I think the following works: Splice a wire from the wire to the switch to the wire after the switch. This way, there is a ground regardless and the switch no longer does anything.

Join the Turbobricks Mailing List, contribute to the Turbobricks Message Board, the Brickboard Aftermarkt, the Badbricks Mailing List, for discussion of performance issues. Usually someone has been through it before. It looks like you are spending $200 to solve a $1 problem. If you really do have pump problems or need a new pump, then the TRex is a good one.

Philip Bradley






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