On a WOT 0-80mph the check engine light came on, blinked for about a minute and went off. It has not been on since. I pulled the codes and nothing seems to be engine related. The only codes are as follows

U1064 - Loss of communications with BCM
B2262 - Horizontal position sensor fault
B2264 - Vertical position sensor fault
B2282 - Battery #1 fault
B2284 - Battery #2 fault
B2263 - Horizontal position sensor fit
B2265 - Horizontal position sensor fault
B2283 - Battery #1 Fault
B2285 - Battery #2 fault

Just had a custom stereo installed and would assume most of these are from the battery change and taking the door speakers out.

Now to the problem I found with the car after the light came on. A couple times at low speeds the car loses power. It's almost like pushing in the clutch except there is no throttle response. The RPM's will drop to idle, push the gas and nothing. After a couple seconds the car seems to wake up and everything is fine. No lights, no codes.....Any idea what the heck it could be? Seems like an electrical/computer issue since if it would be mechanical, once the problem started it wouldn't go away. Possibly traction control or something shutting off power???

Any idea's / fixes would be GREATLY appreciated!!!!!

Thanks!

 

It sounds like an electrical problem to the motor/actuator in the throttle body. Since you just had electrical work done, check the battery connections (clean just to make sure) and more importantly, the ground to chassis connection. Then proceed to check the electrical connections at the tb actuator. (take off the intake boot and look at it while the key is on, have someone step on the peddle)
Being it only does it at lower rpm, it is 'more than likely' a loose connection. Check any connectors in/around the new stereo wiring. They may have 'bumped' something.
Current is a really funny thing at poor connections. A little bit of current and nothing.. a little more and WHAM things kick in.

 

Thanks for the suggestion. I'll take a look at the TB and the ground. Possible TB since I had replaced the stock version with a ported not to long ago.

Thanks again!!

 

After searching for a while now and the car finally completely dying....it was a fuel pump going bad, then gone bad.