Milky

After working on my car during the day I ran codes to make sure everything was ok... I pulled a 542 which is "542 - Fuel pump secondary circuit failure: PCM to ground"

I didn't touch anything to do with the computer or even the rear of the car let alone the fuel pump.... Anyway the car wont start and I need some help!
Thanks

Milky

Or can anyone tell me when the PCM (power control module) is? If I can find that im sure i can find the bad ground.

95_302_StangMan

Sorry but can help you out on this one much, but my guess is that sense it's a secondary circuit is that it is a fuse or something. Well that just my best guess.

bigopimp

what did you do to the car that day?. i put a clutch cable in and some how unhooked the fuel wire under the dash. well the plug is way up on the inside of the drivers kick panel.

Milky

I replaced my intake/head gaskets and a tb gasket... I didn't stray from the project either that's why I don't understand how this could have happened...

Another thing I noticed is that the battery is lit up in my dash which makes sense but maybe that helps..

Milky

Thanks for the help guys but i got it. A vacuum hose under the manifold without a clamp came off... While on topic though why would this cause me that code to come up?

P.S.I.cho

battery light should be on when ur cranking or your key is in run(with the car not started), umm i dunno where your problem is coming from tho sorry

Djs94stang

For future reference, the PCM is located behind the radiator on the right hand side next to the coolant overflow bottle.