Hello,
92 Camaro, 141K miles, 5.0 V8. Throttle Body, NO PPM @15 mph max 772, ave 237 Meas was 871. Never failed smog in 12 years. Recently replaced EGR valve, the diagnostic code showed egr failure. No other codes are present. The HC was pretty close, Max is 110 and Meas was 109. Car was totally warmed up. Any suggestions as to how to make it pass smog?Thanks.
D.