Re:
Well been fooling with this thing all day. Here's how it went. I did not see anything around the throttle body plug that looked like a wiring issue. Everything looked good. The big ground coming from back of engine to chassis looked good. So I hooked up my tuner to just clear the code and then proceeded to install my factory backed up tune back in the computer. Went through the steps, completed fine. Turned key off, unplugged tuner, went to start engine to back out of the shop, and sumbitch wouldn't crank. Battery died all the way down where it wouldn't even hardly turn the motor over and I just had crunk the fawker up and pulled it from the driveway into the shop, not long before this.
Ok, so i'm thinking hmm...maybe the battery was about to **** out and the low voltage is what caused it to throw the code. Well battery had 3 year free replacement and it is only 2 years old so I went and got a brand new one. Came home, installed new battery, and started the engine. Started fine, shut the hood, drove about 2 or 3 miles around my neighborhood, and came back home. Worked perfectly, thought I had it fixed....no limp mode, no check engine light.
Went in changed clothes getting ready to go grill out and have a few brews in celebration of a good friend's job promotion, and the motherfucker cranks immediately into limp mode. Cut it off and let it sit a few minutes and started back....right into limp mode. Done this 4 times....all the same result. Kept trying because I would like to move the sumbitch from where it's parked in my yard, but I guess it will have to sit there for the time being.
Where my dad works, has a bunch of junked out GM trucks. We are going to try taking a throttlebody off of one of them and trying it on mine just to troubleshoot. But that will be another day, as grilling out and beer are currently more important.
