was wondering if anyone knows how pin # 49 gets its ground through ecm i'm getting 4.5 volts koeo at pin 49 and pin 29 engine running warmed up voltage at pin 29 is aprox 1.4 volts pin 49 is 3.85 checked wires to and from ecm to o2 sensor no faults found. dire...

FIX posted 6/12/2000

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