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Code 27 ?

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Old Jul 2, 2001 | 08:23 PM
  #1  
TC602's Avatar
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From: Peoria,Az,USA
Car: 86 IROC
Engine: ZZ4
Transmission: T5 WC
Code 27 ?

I am working on my buddies 94 Chevy Cavalier with a 2.2 liter motor. It is throwing a code 27 which is a QUAD driver. I read the manual and it says that the QUAD driver is in the ECM. I replaced the ECM and cleared the code, but it is still throwing the code 27. Any help would be appreciated.
Thanks Tom

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86 IROC T5
MSD 6A
Summit cam
Flowmaster
AFPR
Lowered 1.5"
My own prom (finally)
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Old Jul 2, 2001 | 08:49 PM
  #2  
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From: In reality
Car: An Ol Buick
Engine: Vsick
Transmission: Janis Tranny Yank Converter
<font face="Verdana, Arial" size="2">Originally posted by TC602:
I am working on my buddies 94 Chevy Cavalier with a 2.2 liter motor. It is throwing a code 27 which is a QUAD driver. I read the manual and it says that the QUAD driver is in the ECM. I replaced the ECM and cleared the code, but it is still throwing the code 27. Any help would be appreciated.
Thanks Tom
</font>
Something shorted out is what blows a quad driver. Just replacing the ecm, with something shorted, means you just blew the good ecm.
You have an electrical problem, not a prom problem.

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