1995 K1500 TBI 350 Running Rich

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Intake passage for the EGR is cleared out finally. The last time I did this job I assumed getting the carbon out of ports was good enough, but I didn’t realize there was a passage leading to the intake plenum that I needed to clean. It was full of carbon. I’ll provide an update after I get the intake back on.

 

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i was able to take the truck out on the highway. No code 32, but my O2 cross counts are very low even at cruise so I’ll be replacing the O2 sensor next and hopefully that will wrap this saga up.