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Tiny
PMANOL
  • MEMBER
  • CHEVROLET CAVALIER
I have a 95 Chevy Cavalier and code 27 is comming up which is Quad driver Module (QDM1). The dealer has told me to replace coil pack that did not fix it and then they told me to replace PCM that did not fix problem and the problem has gotten worse what does (QDM1)control on my car
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Thursday, July 12th, 2007 AT 6:41 PM

2 Replies

Tiny
E40WATER12
  • MECHANIC
  • 522 POSTS
Usually code 27 is could be cuase from EGR valve stuck open, Not always a the Ecu /pcm, Could have a short in the wiring, Or a sensor.
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Tuesday, July 17th, 2007 AT 4:43 AM
Tiny
PMANOL
  • MEMBER
  • 2 POSTS
But what sensor I put a new EGR valve on it could the EGR control valve relay be bad or the Idle Air Control (IAC)valve
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Tuesday, July 17th, 2007 AT 11:29 PM

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