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Is it time for a new AMM? (1990) 200

I've run through the diagnostics in the Bentley, and the only code I got was for the AMM (1-2-1). The heated wire test returned a value of 79 Ohms vs. the 2.5-4.0 specified in the manual. Is this value consistent with the failures experienced by others? I don't want to order something I don't need.

Symptoms were as follows:

Car would start and run very roughly with a strong smell of unburnt fuel in the exhaust. Fuel injectors are all ticking away, and the rough running was not due to one particular cylinder, as I could pull spark plug leads one at a time without making much of a difference to the "running".

FWIW, I'd originally replaced rotor, cap, plugs, and plug wires thinking problem may have been there, and did not know when those parts had been replaced previously.

Sometimes, the car would smooth out and run fine, but that happened less and less frequently until it reached the current state of not starting at all. On the final drive, the car was barely running, and would bog down or stall whenever I tried to accelerate.

I hope I'm on the right track, and the budget is very tight, so I thought I'd check in before proceeding.

Thanks.

--
Brent in Chilliwack, BC, Canada






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