LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Code 32 For EGR. BUT EGR IS REMOVED.

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Old Jul 5, 2004 | 01:07 PM
  #1  
Rich_z28's Avatar
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Code 32 For EGR. BUT EGR IS REMOVED.

Last night while cruising around I got an SES light so I checked the code on my Scanmaster. It was a code 32 for the EGR. BUT I don't have an EGR. I removed it about 2 weeks ago and capped off the vacuum line for it at the solenoid. After I parked the car and shut it off the SES light went off and it hasn't been back on. But what would be causing the car to throw a code for an EGR that isn't even there? Thanks guys.
Old Jul 5, 2004 | 01:12 PM
  #2  
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Its setting the code BECAUSE the EGR system isn't there. When the EGR valve is supposed to open, the PCM looks for a corresponding change in MAP pressure reading. In the OBD-I cars, this test is relatively insensitive, and usually doesn't pick up the missing system. Maybe 90% of the people never see a code..... unlike the OBD-II diagnostic, which seems to pick up the code for about 95% of the cases.
Old Jul 5, 2004 | 01:46 PM
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Thanks Fred. Guess I fell in that 10% of the guys with OBD-I.
Old Jul 5, 2004 | 02:02 PM
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Did you have it disabled in your PCM? If not, that's why. Get it disabled and never see an SES light for EGR again.
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