I was making my best runs last weekend so I let my good friend make his first pass ever. After his run i find I'm going lean when I get in boost! His run was only a couple of tenths slower so it must have occured at the end of, or after his pass.
I have a 2 bar tune and MAF enabled so I was able to drive home fine, staying out of boost

Turns out the Meth controller was sucking voltage from the MAP.

The truck seems to run/sound fine-no smoke. I drove 2hrs home that evening and another 70 miles to Rick's and back without problem. We have the controller disconnected and a new one is on the way.

I've checked the oil level and it looks good, no loss or burning. This is the first I've ever heard of a controller issue, of course I have to be the first.

Lucky , huh?

 

glad you found it as fast as you did the elec. part of your truck can be a nightmare

 

Yours is a perfect example of why I sold my alcohol injection system and installed an A/A intercooler instead. I don't want to rely on luck to keep my motor together.

 

Every system added increases risk of catastrophic failure but if I lived in fear I'd be driving a stock setup. I'm pushing the little 5.3 to it's maximum potential, and risk exists. The benefit outweighs the risk today.

 

Maybe it would be safer to use a separate MAP for the meth kit or are you already doing that? I know it would be a little added expense but then it could not fubar your 2 bar/MAF tune.

 

I like that idea. Thanks!