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1996 Chevy Monte Carlo OBD 2 Code PO 172

Tiny
JESSICAFREIHEIT
  • MEMBER
  • 1996 CHEVROLET MONTE CARLO
Engine Mechanical problem
1996 Chevy Monte Carlo 6 cyl Front Wheel Drive Automatic

I have a 96 monte carlo. I recently bought an OBD 2. The code PO 172 is showing I'm not sure what to do. Please help.
Tuesday, October 13th, 2009 AT 3:13 PM

1 Reply

Tiny
MHPAUTOS
  • MECHANIC
  • 31,938 POSTS
Hi there,

This is an over rich mixture code, you will need to have the EVAP system check, the EGR system check, check the operation of the O2 sensor and check for a faulty fuel injector, start here.

Mark (mhpautos)
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Tuesday, October 13th, 2009 AT 5:28 PM

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