2001 Mazda 626 Check Engine Light; ECG Flow Diagnostic Resu

2001 MAZDA 626
77,890 MILES • 6 CYL • 2WD • AUTOMATIC
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PIXIEDUSTEDLEO
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  • 1 POST
About two weeks ago, my check engine light popped on while in transit. Since then, the light has gone off & just the other day come back on. I advised my baby brother (who is an amateur apprentice mechanic @ a shop) so he could hook it up to the diagnostic machine to see the error machine. The diagnostic reported issues with the "ECG Flow." I don't know what that means or where to look for the problem. He doesn't think that this problem should be affecting the performance of me engine; however, it feels like its causing misfires - almost to the point of stall outs when idle. How critical is this problem in my "pristine engine" and where should I have my brother seek out this area in my engine? I am looking forward to your professional advice. Clearly, I am concerned and don't know where to seek out answers. Please email your advice: Pixiedustedleo@aol.com

Many thanks in advance and best regards,

Mary
Feb 24, 2008 at 1:41 PM
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MASTERTECHTIM
  • CAR REPAIR CONTRIBUTOR
  • 4,750 POSTS
your problem lies in the exhaust gas recirculation valve. if the valve sticks open then your car will run rough due to a lean condition. i would repair this problem. it usually is a vacuum line leak or faulty solenoid or egr valve itself. i cant be certain unless i looked at vehicle.
Feb 24, 2008 at 2:17 PM
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