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i'm a newb, but what readings do you get if you just turn on the key without starting and read the level?

I had similar problem and Bill said it appeared 2 units were attempting to communicate to the ECM simultaneously. I had forgotten I had installed a Dakota Digital BiM on a 2nd obd2 port to drive the...

I was getting the same message due to a Dakota Digital BIM I had plugged into my 2nd obd2 port which feeds the gauges. Unplugging the Dakota Digital BIM did the trick. I had forgot about it and both...

I just wanted to say thank you so much for this clear, concise and informative step by step procedure. When i purchased the HPTuners MVPI 2, this is what i envisioned a manual would provide.

Thank you for the suggestion. Throttling doesn't help, I even got so frustrated I hit it with ether (whew) a couple times which I suspect could interfere with MAF. Still wouldn't fire and throttling...

No, in the morning it fires right up first time, run it awhile say 30 minutes and it acts like a "carburetor heat soak" will crank and crank. Dakota Digital shows while cranking 11.5 volts. No...

I have a 2009 LS GMC L9H 6.2 in a 56 Chevy and I've always used the beta version and lately I've been having the same issue. Additionally it sometimes will crank and crank and not fire. Check DTC's...

Neewbie here.

Under Editor/engine/fuel/oxygen sensors/LTM minimum limit and max limit are the help statements at the bottom correct? They seem to be crossed. For example, the LTM minimum limit...

I had similar problem with 09 Yukon Denali 6.2 VVT L9H AWD and an 07 4L70e. Went with Compushift for trans and haven't had any problems. I am a newbie however so take it for what it's worth. Mike at...

I have a 6.2 liter out of an 2009 Yukon Denali installed in a 56 chevy with a Speartech programmed ECM. I sent off the ECM and harness and asked they remove the 6l80e wires since I got a deal on a...