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Rough running, No Idle, Very fuel Rich, ECT? FPR? 700

posted by  Samh on  Sun Aug 26 22:19 CST 2007
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Sun Sep 16 17:13 CST 2007
[RELATED]

Hi,

Just picked up this car.
1989/90 740 GLE - Has a B234F in it.

Getting too much fuel. Throttle body is wet, plugs are wet.
Sounds like it is firing on 3 cyl, though i have checked that.
Fuel smoke. Rough running seems to be throughout the RPM range.

Been reading through the FAQ's

Just a bit lost on what i should try first.
The ECT or the FPR.

Thanks in advance
--
1985 760 Turbo Intercooler, Rebadged OVLOV, Turbosmart Type 2 BOV and Gated Boost Controller, Ram Air, Brass Button Clutch, Jamex Lowered, H/duty Mahle pistons, O'ringed Head, T3/T4 Turbo, Ported head, 3 Inch Exhaust








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    Update:Rough running, No Idle, Very fuel Rich, ECT? FPR? 700

    posted by  Samh on  Wed Aug 29 23:57 CST 2007
    Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
    last visit: Sun Sep 16 17:13 CST 2007
    [RELATED]

    Just wraped all vacuum hoses - to make sure that everything is sealed.
    Re-earthed injector ground. Found a strap loose from the firewall.
    Reconnected it to the rocker cover.

    Now the car wont start at all. (this happened after regrounding injectors)
    cranks great.
    Fuel is there. spark is there.

    I think it may be the rpm sensor, sending the timing out of whack.

    any ideas?
    --
    1985 760 Turbo Intercooler, Rebadged OVLOV, Turbosmart Type 2 BOV and Gated Boost Controller, Ram Air, Brass Button Clutch, Jamex Lowered, H/duty Mahle pistons, O'ringed Head, T3/T4 Turbo, Ported head, 3 Inch Exhaust








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    UPDATE: Rough running, No Idle, Very fuel Rich, Exhaust Smoke 700

    posted by  Samh on  Wed Aug 29 14:55 CST 2007
    Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
    last visit: Sun Sep 16 17:13 CST 2007
    [RELATED]

    - Changed the ECT sensor (seemed to help)
    - Change the FPR.
    - Checked the AMM (Okay)
    - Cleaned TB & IAC valve.
    - Re-adjusted the TPS.
    - Check for Vacume leaks. Thought head one from the main Airbox - TB hose. So I taped it up.
    - Clean the flame trap. (seemed to be okay)
    - New Plugs
    - New Fuel Filter

    Excellent Spark & all injectors are good.

    Car seems to run better (not right, though) when i unplug the Carbon Check valve. (option extra aparently)

    Sounds like the timing is out. Should i change the Crank Angle sensor (Impulse sensor / RPM Sensor)

    Going to look for more vacume leaks tonight. Any hoses, I should pay special attention too?

    It actually runs now, doesnt stall.
    Still rough & Very rich. Smoking big time.

    Also, I snapped the handbrake cable at the handbrake end. Anyone have any experience changing these?

    --
    1985 760 Turbo Intercooler, Rebadged OVLOV, Turbosmart Type 2 BOV and Gated Boost Controller, Ram Air, Brass Button Clutch, Jamex Lowered, H/duty Mahle pistons, O'ringed Head, T3/T4 Turbo, Ported head, 3 Inch Exhaust








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    Rough running, No Idle, Very fuel Rich, ECT? FPR? 700

    posted by  someone claiming to be fixit2003 on  Tue Aug 28 02:55 CST 2007 [RELATED]

    Remove the vacuum line going to the regulator. If there's any gas in it then the regulator's bad. Or you can try pinching off the hose and see if it run's better.







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