truck dies while driving, then won't start
Champion
Joined: Feb 2005
Posts: 3,710
Likes: 2
From: Skagit County, WA
While we're on this subject... I've got a 99 with a 318 throwing a p1389 manufacturer control code. Tried swapping the asd relay with a similar one in the block and still no spark, replaced cps and coil and same result. Even went as far as swapping the engine computer with no luck as well. Any ideas?
a quick search says that code is no ASD voltage at the PCM. Have you checked for power at the ASD relay? Fuse 6 good?
Fuse 6 feeds the ASD, which then feeds the dark green/orange wire at each injector, the coil, as well as the PCM. It also heads off to Fuse K.
Fuse K sends power out to all of the oxygen sensors on the dark green/white wires (if a certain TSB has been performed, I guess)
If you have power on those wires with the ignition on, then the ASD is probably fine. If you have power on that DG/Or wire at the injectors and coil, but not at the PCM, find the broken wire.
I'll check that out. Any idea what my voltage is supposed to be for all those checks? Aswell I noticed when I'd turn the ignition on the relay for the asd would click aswell as any other relay I put there.