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#1
June 2nd 07, 10:19 AM
posted to rec.autos.tech
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"Big Picture" approach to looking at diagnostic codes?
I own a 97 Ford Explorer which is producing the following codes:
P0153 - O2 Circuit Slow Response (Bank2, Sensor1) P0401- EGR Flow Insufficient Detected P1151- Lack of HO2S21 Switches - Sensor Inicates Lean P0304 - Cylinder 4 Misfire Detected P0171 - System Too Lean (Bank 1) P0174 - System Too Lean (Bank 2) I realize these codes are showing me symptoms. http://www.obd-codes.com/trouble_codes/ would help if there was a single code presented What do I have to know to back away from the individual symptoms and diagnosis the root cause(s)? - Mike 
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