Update: I am sitting in my running TJ at an average of 650RPMs whereas before, during the issue, I would average about 400RPM. Disconnecting the battery and reconnecting it *seems* to have solved the issue.
Upon startup this morning the MIL was illuminated and I had a solid P0155 error. I backed out of the garage, shut the sputtering engine down, and popped the battery cables. I did check to see if either cable was remotely loose and they were not. There was no corrosion on the posts nor the connectors. I reconnected and fired the engine up and initial idle was at ~1000RPMs, which for me is normal. I let it idle for about 5 minutes and the RPMs gradually dropped to ~650, which is normal. I then drove it for about 2 miles being sure to coast at idle as well as stop and idle. Everything was normal. When I got back I let it idle with no issue.
I’m going to drive it a bit today to see if the issue returns. First I am going to let the engine cool to ambient temp. I will update again as threads like these can be invaluable to other members and not having a follow up wouldn’t be cool.
Fingers crossed that this is all it is. I am hoping it is not a computer (ECM?) issue.
Upon startup this morning the MIL was illuminated and I had a solid P0155 error. I backed out of the garage, shut the sputtering engine down, and popped the battery cables. I did check to see if either cable was remotely loose and they were not. There was no corrosion on the posts nor the connectors. I reconnected and fired the engine up and initial idle was at ~1000RPMs, which for me is normal. I let it idle for about 5 minutes and the RPMs gradually dropped to ~650, which is normal. I then drove it for about 2 miles being sure to coast at idle as well as stop and idle. Everything was normal. When I got back I let it idle with no issue.
I’m going to drive it a bit today to see if the issue returns. First I am going to let the engine cool to ambient temp. I will update again as threads like these can be invaluable to other members and not having a follow up wouldn’t be cool.
Fingers crossed that this is all it is. I am hoping it is not a computer (ECM?) issue.