Clearing CEL by disconnecting battery

[BoldlyGoing]

Okay. You can call me if you have any questions

Well, shit.
All 4 codes popped right back immediately after I pulled out of the driveway. That seems pretty suspect.

My last option is to swap in the 1 spare O2 sensor I already have on hand.

if that doesn't clear 1 code then obviously there is a problem elsewhere.

 

[BoldlyGoing]

@Wranglerfix - is there any good way to determine that the PCM is the problem beyond guess and check?

no change in my O2 codes

 

[Wranglerfix]

@BoldlyGoing Yes, sir. You can mail it into me and I will test it in my jeep.

 

[BoldlyGoing]

@BoldlyGoing Yes, sir. You can mail it into me and I will test it in my jeep.

Order is in.

Nice talking to you.

I'm gonna go cry in the corner that my high clearance skid plate fund has been so unceremoniously depleted...again.

 

[Wranglerfix]

@BoldlyGoing It was nice speaking to you as well. Please let me know when you get it installed and thank you for your business.

 

[BoldlyGoing]

Received and installed the new PCM from @Wranglerfix .

A quick test drive didn't pop the CEL this time, which is more than I can say for last week.

I've got about 80 miles round trip to do tomorrow, so here's hoping for no more lights!

 

[Frizzleburger]

Well, shit.
All 4 codes popped right back immediately after I pulled out of the driveway. That seems pretty suspect.

My last option is to swap in the 1 spare O2 sensor I already have on hand.

if that doesn't clear 1 code then obviously there is a problem elsewhere.

Any update on those codes? I have the same exact issue now.

 

[BoldlyGoing]

Any update on those codes? I have the same exact issue now.

hate to break it to you, but it took a new PCM to fix.

$1000 and about 15 minutes, codes went away and never returned.

@Wranglerfix can get you squared away.