no start fuel and fire

[rtmwolf]

i am working on a 98 gmc safari 4.3l and have fuel and fire but the injectors dont seem to be working there are no codesfound mouse nest near the dist. it cranks fine ut can tell no fuel. just replaced fuel pump because of not working fuel pressure is 60 when first crank but does not hold pressure long would love

[Blue Bowtie]

Did the mouse get you partway through the posting? Was there something else?

I'd look closely at the wiring near the distributor.

[rtmwolf]

i checked all the wiring near the dist. and found all ok did a continuity check on same with the same results. had another mech. look at it and he thinks it is the comp. but i dont think so. sending it off today. I hope this works but if you have any other ideas i would welcome them thanks

[Blue Bowtie]

Since it cranks fine, it's not likely a PassLock issue. Make sure the injector pod has power (injector fuses), and the crank position sensor is switching the signal line to the PCM. Even a "dead" cam position sensor will evenetually cause the ignition and SFI to fail to operate. The fact that you have "fire" (ignition?) would indicate that the CKP and CMP are at least reporting to the PCM, but it wouldn't hurt to verify that.

[rtmwolf]

thanks for all your help i really apreciate it its hard to find good mechanics to talk to here in mexico