Power drain causing Reduced engine power

2003 CHEVROLET TAHOE
150,000 MILES
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RBRF91
  • MEMBER
  • 11 POSTS
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
Jun 22, 2013 at 1:54 AM
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WRENCHTECH
  • ✓Experienced Mechanic
  • 20,760 POSTS
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.
Jun 22, 2013 at 2:12 AM
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RBRF91
  • MEMBER
  • 11 POSTS
but it only happens when I have that light in at night. could there be a short somewhere?
Jun 22, 2013 at 2:19 AM
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