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What did I do wrong? 200 1989

posted by  rickm on  Thu Oct 31 11:15 CST 2002
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Could be a bad fuel pressure regulator. The best way to check is with a fuel pressure gauge installed on the fuel rail (35 to 40 psi) This is never easy to acheive due to the type of thread present on fuel rail.
Another method is- Remove vacumn hose on FPR and see if any fuel leaks out. If so replace FPR. If no fuel is present on vacumn side remove fuel return hose from back of FPR. Get a 6' long piece of fuel hose that will fit on the return connection on FPR. Drape hose over fender and into a container (1 gallon minimum). Have assistant start car and observe how much fuel comes out of your temporary return hose. If its less than a full hose amount you probably need to replace the FPR. Mine was just a trickle. You don't hear of many injector failures here on the BB.
Needless to say, be careful about fire, have all pilot lights, etc.(in garage) turned off






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