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odins2ravens,
As in Odin's ravens Huginn and Muninn? Both of whom fly around the World and then return to inform Odin?
So, you say a 1989 model year, so you should have the Bosch LH-Jet and EZK 11x (116?).
So look at
https://www.brickboard.com/FAQ/700-900/EngineOBDCodes.htm
If a sensor begins the failure process, like the throttle position switch, crank position sensor, air mass meter (AMM or MAF mass air flow sensor), 02 sensor, knock sensor, coolant temp sensor, the OBD in socket 2 (fuel Bosch LH-Jetronic) and socket 6 (ignition-spark, and, if fitted, EGR, Bosch EZK ignition.) Other causes like bad wire harness grounds, corroded wire harness connectors, clogged fuel filter, failing fuel injection 25-amp fuse in the engine bay behind the battery on the North American driver side front inner fender, the fuel injection relay could be faulty, and numerous other causes.
https://www.brickboard.com/FAQ/700-900/EnginePerformanceSymptoms.htm
https://www.brickboard.com/FAQ/700-900/HighMileageVehiclePrevMaint.htm
https://www.brickboard.com/FAQ/700-900/MechanicalTips.htm
Do you have a Bentley Volvo 240 Service Manual Bible?
Other folks shall chime in with information leading to a diagnosis and resolution to help you.
Questions?
Hope that helps.
Dad O'Rouke's Stone Bench, South end of Bolinas Ridge, Overlooking Land's End, or what some call the Golden Gate, in Marin County California.
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