PCM RESET

guntruck07 · **Joined:** Wed Oct 24, 2012 11:48 am **Posts:** 8

Anyone know the exact correct way to reset tw PCM/ecu on a 2007 liberty 3.7 sport 4x4?? Replaced my pcv now have weird idle and needle bounce, all hoses are connected, was told reset may help, thanks.

Gageraid · **Posted:** Sat Nov 17, 2012 11:27 am

Just disconnect the battery for 10 mins or so.

BugginKJ · **Joined:** Mon Jul 06, 2009 7:35 pm **Posts:** 4576

Gageraid wrote:

Just disconnect the battery for 10 mins or so.

No.
Must go to the dealer for a proper reset/reprogram.

Gageraid · **Posted:** Sun Nov 18, 2012 3:09 pm

BugginKJ wrote:

Gageraid wrote:

Just disconnect the battery for 10 mins or so.

No.
Must go to the dealer for a proper reset/reprogram.

Reset is different than a reprogram.

BugginKJ · **Joined:** Mon Jul 06, 2009 7:35 pm **Posts:** 4576

Gageraid wrote:

BugginKJ wrote:

Gageraid wrote:

Just disconnect the battery for 10 mins or so.

No.
Must go to the dealer for a proper reset/reprogram.

Reset is different than a reprogram.

Correct, when the battery is disconnected it just clears the idiot light for a short time but codes are still stored.

Gageraid · **Posted:** Mon Nov 19, 2012 1:01 pm

I think we need to find out why the OP needs to reset/reprogram to direct him in the right direction.

kj-dec · **Posted:** Tue Nov 20, 2012 10:23 pm

Topic here

This is to reset the PCM adaptive memory so it 'relearns' your vehicle and driving modes.

I know it has an impact because the two times I did it (after CAI install and after upgrading the exhaust and driving for a few days with them) the Jeep reacted very differently, especially when decellerating. It took 7-8 days driving every day for things to settle back down.

Gageraid · **Posted:** Wed Nov 21, 2012 12:35 am

kj-dec wrote:

Topic here

This is to reset the PCM adaptive memory so it 'relearns' your vehicle and driving modes.

I know it has an impact because the two times I did it (after CAI install and after upgrading the exhaust and driving for a few days with them) the Jeep reacted very differently, especially when decellerating. It took 7-8 days driving every day for things to settle back down.

Cool. I'm sure someone will find this useful.

BugginKJ · **Joined:** Mon Jul 06, 2009 7:35 pm **Posts:** 4576

kj-dec wrote:

Topic here

This is to reset the PCM adaptive memory so it 'relearns' your vehicle and driving modes.

I know it has an impact because the two times I did it (after CAI install and after upgrading the exhaust and driving for a few days with them) the Jeep reacted very differently, especially when decellerating. It took 7-8 days driving every day for things to settle back down.

Yeah.......no thanks. I know a shade tree "mechanic" that did that once, he has the scar tissue on his arms and face from the burns to prove to ya sparks around a battery aren't too cool. His leaky battery exploded, hurt him badly, caught the vehicle on fire because he was actually shade tree welding and now doesn't have to worry about the check engine light anymore. Oh I know, he did it all wrong :roll:

Remember, we're all French models on the internet.........

PCM RESET

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