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As far as I know, there's still no answer for what the DTC Fault Class types are. There have been a bunch of threads started and no answers, and if you ask HPT support you get a generic reply about...

You need to take the Jeep to a reputable tuner with a dyno. No one in their right mind would touch it as far as a remote tune goes. Especially in CA.

I know this is an old thread, but I wonder if you ever found a solution. I have a 2002 WJ with a 4L and noticed 2002-2003 were skipped as well and wondered why.

It would think so. Why not log it and see if timing is being pulled below 7900 RPM?

There are some people in a Facebook group I'm in who have compiled older versions of VCM Suite among other things HPT related. Based on your signature you may be in it too. Rhymes with copy organics....

It would make sense that this would cause problems. What a pain in the ass.

Oof.

I did something similar on a 2004 LJ with a Traildash. Superchips "91 octane" claibration was loaded, but the Jeep is pretty extensively modified and some evap codes needed to be dealt with. I read...

I don't know where you're from, but where I am in NC, there's no way anything that requires an emissions inspection can pass with a non-factory engine swapped in. During the inspection you have to...

I'd also like to see a screenshot or something. I don't have my laptop close by at the moment, but I was just messing with a 2004 Jeep LJ yesterday and could have sworn the downstream O2s were there....

I know the PCM has to be unlocked before you can do anything with it, and I wonder if there is a way to deal with the SGW Module once it's unlocked. More in line with your question - I don't know for...

Lexington, NC

I'm Corey, and I'm from NC. I'm a tech for a local off road/diesel/performance shop and have used HPtuners very little, but I find it very interesting and would like to learn more about actually...