If the resistance is correct across the #2 and #3 leads on the AMM can it still be bad? What else should I check? If I replace it, should I buy it new or used. How expensive are they in US dollars?
The car stalls and stutters at idle. I can not find any air leaks. and am not sure what else to look for. I have given the car a complete tune up including plug wires. Any other suggestions? I need some help! Mike
When my AMM on my 93 240 gave me trouble, I went to an electronics shop and bought contact cleaner (in spray). I generously sprayed the inside and it fixed whatever problem there was. Unfortunately, it will only extend the life of the AMM by about a few months. Repeating this procedure, I added about a year to its life.
It makes a little while I bought one, but I believe it was more than $200 from the dealer.
I've been told that they are quite sensitive to dirt.
Just a thought - have you removed and cleaned out the throttlebody and associated vacuum lines? Can make a world of difference, even in a car that seems to be running OK.
MKL '91 245 5-spd
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