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1994 Chevy Lumina trouble codes

Tiny
SMOOTH_THUNDER
  • MEMBER
  • 1994 CHEVROLET LUMINA
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 100,000 MILES
Help! I've replaced all 3 coil packs, plugs, wires, fuel filter, catalytic converter & the main computer. I'm still getting codes QDM 1 QDM 4 failure. Also service traction control light is on and can't find any info about what to do about that. I'm over 600.00 in parts & labor and about to drive this thing off a cliff. Anyone with a straight answer that is a specialist on 1994 chevy lumina apv!
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Friday, October 24th, 2008 AT 3:14 PM

1 Reply

Tiny
TEAG
  • MEMBER
  • 158 POSTS
Quad drivers are basically mini relays built into the PCM/ECM. Each driver controls up to four devices. Either one of the devices is drawing too much current or the PCM/ECM is bad. What was the error code?
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Sunday, October 26th, 2008 AT 9:57 AM

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