My wiring diagram shows the disable function and I have 3 wire sensors.
To summarize:
In addition to disabling 02 feedback and thus forcing the ECU to open loop, the P N switch also grounds the starter relay so the engine can crank.
I currently have the P N switch wires jumpered (so that I can start the car) so presumably I am in open loop all the time. Which is not O.K.
Options as I see them:
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Bywater mentions a “disable the disable” link. Pulling this link sounds like the best approach. Does anyone know where it is??
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Replace my P N jumper with a momentary switch that I push to make the connection and allow cranking. Poor man’s security system and a little inconvenient.
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Un-jumper the P N leads and add a new direct ground to the correct lug on the starter relay.
Thoughts?
Thanks
Bob