So more information. Removed all the O2 sensors and shoved cameras through them. B2 cat is gutted already and B1 cat is pretty clogged. The PO must have gutted just one cat. What an asshat. Going to remove the cats next and cut B1 cat.
Jeep Dying Under Load
- Thread starter Intimnasc
- Start date
Either that or it came apart and is clogging up the third cat, which is very possible.
The one cat blew out and is plugging your 3rd cat, almost guaranteed.
Might be stuck somewhere in the bends between the primaries and main cat. Definitely time to drop the exhaust and take a look.
Yeah looking inside with a camera you can see scrape marks all around the inside where someone scraped it. Either way I'm deleting all 3.
Well I gutted the precats and removed the downstream cat. Jeep runs amazingly better but I have the exact same PTO lem with the O2 sensors. Running around town they stay under 1 volt and perform as they should. Get on the highway and set cruise around 60-65 and in about 3-5 miles the voltage trickles up a little at a time. Picture below is maybe 6-10 miles on the highway. I have a hard time believing a shorted wire can be duplicated to perfectly. Just males little sense to me. O2 sensors have been replaced and cats are gutted with sensors in anti fowlers out of the stream.
Oh yeah the check engine light comes on saying shorted to voltage. Problem is when you take your foot off the accelerator voltages drop to normal. Start driving again and in a few miles voltage starts climbing again
That's my next move. I just find it hard to believe wiring if I can duplicate with driving. Hot cold don't matter. Just motor load. I'll call him Monday. Wish there was a way to test the PCM. Maybe he will have some advice
Do as @Wranglerfix does and throw it in another similar Jeep and see if it does similar things.
Trick is finding someone close and willing with a 2004 manual.
-Mac
Funny story isni have a friend with an identical sport. Was thinking that. Put mine in his in case my wiring is fubared.
Ok dumb it down a little what's the skim number and how will it affect this test?
Chipped Key, if neither one has a chip key no big deal. If yours does and the other one does or doesn't it won't work.
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