1996 Chevy Monte Carlo OBD 2 Code PO 172

1996 CHEVROLET MONTE CARLO
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JESSICAFREIHEIT
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  • 1 POST
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.
Oct 13, 2009 at 8:13 AM
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MHPAUTOS
  • ✓Experienced Mechanic
  • 31,937 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)
Oct 13, 2009 at 10:28 AM
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