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And there is one extra plug that my kit didn’t come with a plug for , all the way back on the exhaust I believe. Pretty sure it’s an o2 sensor , but it definitely reads exh temp because it runs fine...

The big tan one is for the def module connector (located directly above def tank I believe, under truck). Takes a second but you’ll fine only one like it on top of a tank. The other (4 or 5 I think)...

Good question because I?m not sure, but I would definitely guess the mpv1 is the problem mainly because it?s two versions behind and VCM is constantly updating . Plus with L5p, the gen V ecu is so...

Wanted to update that I finally got help with an unlocked version of my tune file. Was able to get in and override mode 9, which was ultimately a “soft-warmup” emissions mode that was executing the...

Wanted to update that I finally got help with an unlocked version of my tune file. Was able to get in and override mode 9, which was ultimately a “soft-warmup” emissions mode that was executing the...

I have a tune loaded a few weeks ago from GDP and the tune is great except the truck is now getting stuck in combustion emissions mode 9 (soft warm up). Really no big deal except I have to turn off...

Thanks for your response How were you able to open the tune?? I can’t get into it and read my truck with it because “I’m not part of the remote hosting network “ or whatever which I assume is GDP.. I...

I did all with hpt, not sure, but I’ve understood it as the device (aka mpvi3) has to be one licensed out of Canada where that is not an issue .. Mine came from there , no problems with that aspect …

Have similar issues . I found it helps mine when trans temp reaches 142+ then I turn off the truck and turn it back on.. then it’s fine till it cools down again. No boost with throttle because vanes...

Seeing as no one can touch the tune, hopefully gdp can figure it out. Anybody else have a solid tune for my truck?? Would love to see it run flawlessly and more than happy to pay ..

Idk if this maybe has something to do with map and baro readings …? I notice my baro always reads 14.1-14.2 psi when baro in my area should be 14.7 . Also the manifold absolute pressure reading .2-.3...

Hi, I've seen you before on here and appreciate you taking a look at my log. I'm going to attach my tune file here, if you wouldn't mind taking a look and possibly pointing out any discrepancies.....

Hello, first time here for me.
I recently unlocked and tuned my 2019 l5p and everything is going great with the tune I loaded besides one thing I can't figure out and hopefully you all might be...