We started having trouble at low rpm about a month ago. Idle is normal. In the last week, we could barely get the car to move. Idle still normal, but like a vacuum leak kind of feeling - major hesitation when trying to rev. Our guy is always busy busy busy, but will give us some advice over the phone. He said look for cracked or disconnected hoses and wires, etc. especially around the AMM. Everything looks in order, but I unplugged and replugged all electrical connectors, and blew out the AMM just orally. It ran fine for a trip around the block. The next day my wife took out the car in heavy rain, and said she barely made it to her meeting. When she got home I repeated the process, but also sprayed some WD40 into the AMM plug, and a little into the device itself for good measure. I know this is probably inadvisable. I wanted to use tuner or carb cleaner, but the parts store was closed. Anyway, it worked. The car runs fine now, but for how long? I can't say for sure that the AMM is the problem, but it looks this way. There is plenty of spark, and fuel in the rail. Is a big dose of carb spray at all useful? Also, is there a way to diagnose the AMM at home? I noticed that the car sure won't run if the plug is disconnected!
Thanks! I wish I could search old posts, but that doesn't seem possible right now.