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Registered
Join Date: May 2015
Location: Secret lair deep underground
Posts: 1,810
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Quote:
Originally Posted by tops911
check the power to the WUR, I had an issue when I swapped out the black relays that came with the car when I bought it for the "correct" red relays (I now know the new relays are junk). After checking fuel pressures with the gauges I realized that the fuel pressure stayed at the cold PSI and did not increase as the engine warmed up. I chased the fueling issue for months before swapping back to the black relays and presto the car ran at it should. The lack of power to the WUR never heated up the WUR and the car constantly ran as if it was cold.
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The WUR doesn't get a red relay. Only things that have an inductive load need those. From memory, the fuel pumps. Can't think of anything else offhand although maybe I'm missing one.
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'86 no-sunroof 930 coupe: Emissions removed, FrankenCIS controlling eWUR, lambda, COP ignition. Tial f46P 1.0 bar spring, SC cams, K-27/29, lightweight clutch, TK Longneck intercooler, RarlyL8 headers and dual-outlet hooligan
'14 Jaguar XK-R: Bullet proof windscreen, rotating number plates (valid all European countries), martini mixer, whatever you do don't press this red button!
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