Question about Isuzu Trooper
Could have wiring damaged need to check if signal from O2 sensor is getting to engine ECU.
can see this in data display using tech2 or scanner O2 sensor reading would be around 450mv all the time indicating open circuit(this is a default reading used by ECU)
or with multi meter back probe ECU connector O2 signal wire to see what reading if any getting to ECU.
Posted on Jul 20, 2009
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Posted on Jan 02, 2017
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