Quote:
Originally Posted by jhodg5ck
That aside, have you checked your air flow plate sensor and TPS to see if they're working properly?
Jonathan
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OK I tested those - TPS sits at about 0.72V when engine idles warm. The voltage rises to 4.8V smoothly if you push the flap down. So I think it's Ok.
I also went over a lot of the sensors, with the wiring diagram, and tested them at the connector pins of the ECU plug. Air temp sensor, coolant temp sensors, throttle switches (both), plus some other plugs at the fuel pump relay/OVP. It all was fine.
Maybe I've got an air leak between the intake plenum and the throttle body?
To be honest it's not too bad now, seemed to improve after I tested those components oddly. I am extra picky though so keep investigating and it's good to learn too!