Recent content by gottarollwithit

The PCM in N. San Jose one is gone, same for Newark and Richmond.

So i've pretty much narrowed my problems down to my PCM. I think the previous owner fried it by shorting out the downstream O2 sensor. Now that i've replaced the rear wiring harness, i still can't get the fuel pump to kick on by turning the key in the ignition. If i jump the FP relay, i can get...

OK, update time now that i've done some testing. -Still no fuel pressure at the rail or spark. -There's no power at the coil. -There's about 1.25v at the fuel pump, regardless of whether i jump the FP relay or use the relay itself. -Obviously, the FP never spins up, even when i jump it from...

Mods, thx for moving the thread to the right place. Car is currently in Lafayette, CA.

As you'll see in my no spark, no fuel pressure thread, I think i'm fighting a wiring problem. While i'm not quite at wits end yet, i'd definitely entertain hiring some help at this point. Anybody in the Bay Area with some solid Jeep troubleshooting skills interested in helping out? Maybe i...

My initial diagnosis was a bad crank pos sensor b/c i saw that there was no spark, however there is also no fuel pressure. Will a bad crank sensor cause no fuel pressure? The fuel pump does not kick on. How do i jumper the ASD relay? Do i just paperclip whatever 2 terminals make voltage? I...

Oh yea, i swapped relays. I had a few of the same relays from the JY and none of them made the fuel pump kick on. I assume the fuel pump is supposed to prime in ign pos 2, right?? Supposedly all of this stuff crapped out at once. Isn't it kinda suspicious that i can't get spark or fuel??

Forgot to add. The car is able to crank with no problems, and the fuel and voltage gauges don't move. I assume these are supposed to move when the key is in pos 2?? At the moment, i'm thinking that some wires down near the downstream O2 sensor got yanked and are grounding or shorting out...

So i just bought my first Jeep Cherokee. It's a 98' model so it has many of the last gen updates. However, i bought this car semi broken - the prev owner got stuck in a pit and tore the downstream 02 sensor wiring off when getting out. It was enough to yank the wires apart at the harness and...