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Ok so new firmware and update finally worked on my 2002 jeep wrangler

Any solution to this cluster f&$@k yet?

Getting the exact same error message. Does this mean it has to go to a dealership or can a snapon scanner do it also?

Having the same issue.

I emailed support and was told that jtec+ isnt currently supported by mpvi3 but will be available in the future.

I did the same on my 2002 jeep tj. Cleared all dtc?s then proceded to read the tune and tried rewriting another tune I had and it failed, now it only cranks and wont start.

They are working on an update to fix this issue.

They are working on an update to fix this.

I had an mpvi2 and it was stolen. I just purchased the mpvi3 and from all I could tell from the website it would work on my 2002 tj. Why would they introduce a newer version with less compatibility?

Apparently the MPVI3 I ordered isn?t compatible with my 2002 Jeep Wrangler 4.0 any ideas about when a update will be available I find it a bit stupid that a newer version wouldn?t be as compatible as...

Does anyone know if flashing the ecm also resets the adaptive learning?

Having the same issue but a bit different circumstances. I was palying around with the software before I did my stroker swap I reset the adaptive learning on the pcm before first startup. After i had...

having the same issue withthe beta

I had troubles with mine writing too and it ended up being my internet it seems to fail if you lose connection

Ok thanks for the help so far ive added 4 degrees to all the tables above 1500rpm n 30 kpa to 105 didnt seem to make much difference but one thing i did notice was changing the power enrichment...

also how can i disable the evap system i dont see any options for it

ok like I said im a total newb to this can you explain to me how i change them in the tables?

Im a newb to tuning and am looking for a little more power from my tj's tired 4.0 liter. Im currently building a 4.6 stroker but would like to try and tune the stocker before I play around with the...