Power drain causing Reduced engine power

Tiny
RBRF91
  • MEMBER
  • 2003 CHEVROLET TAHOE
  • 150,000 MILES
I believe I am having a electrical issue. The reason I say this is because I keep getting a reduced engine power fault when I drive at night or if I use a cigarette lighter. I can run the lights and not get the fault if I take the drivers side low beam out, but if I leave it in at night it will fault just about everytime. Any Idea on how to fix this?


If anyone has a idea on how to fix this, please either reach me here or call me at 541-771-2315

Thanks, Ron
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Saturday, June 22nd, 2013 AT 8:54 AM

2 Replies

Tiny
WRENCHTECH
  • EXPERT
That has nothing at all to do with any lights. It is an indication of a problem in the "drive by wire" electronic throttle system. You need to have it diagnose correctly by an experience tech with a factory scan tool. You may end up replacing the electronic throttle body.
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Saturday, June 22nd, 2013 AT 9:12 AM
Tiny
RBRF91
  • MEMBER
But it only happens when I have that light in at night. Could there be a short somewhere?
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Saturday, June 22nd, 2013 AT 9:19 AM

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