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Laundry List of Issues / Questions 700 1989

posted by  someone claiming to be Scott on  Thu Mar 13 06:36 CST 2003 [RELATED]

Chris,

Not sure what MIL means by "chugging." When the air mass meter died on my 240, the car would loose power, and then surge back to normal, loose power, surge again, etc. until I shut it off. It would restart and idle, but was not driveable.

The connection on the wire harness that goes to the air mass meter could be oxidized, loose or dirty. Or the air mass meter itself could be on its last legs. If the o2 sensor is not the culprit, the next time that this happens, pull to the side of the road, turn off the ignition and pull the lead to the AMM. Restart the car and see what happens. If the AMM is faulty, the car will be driveable, but only at low speeds, and will idle roughly, when it is disconnected. The computer, receiving no input from the AMM, defaults to a "limp home" mode and the engine is basically getting unmetered fuel.






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