Hi Art, I understand now. I have done that before (release the pin/tang from a plug). Robert Haire actually sent me a used AMM off his 1991, and I installed it this morning (11th August). That did the trick (so far). I read the voltage as I did before by sticking my multimeter probes down into the plug/connector on the AMM on position #1 Brown & Black wire to ground, and position #4 White wire to ECU.
Low and behold, the burn-off function now works with the used AMM from Mr. Haire. After revving the engine to 2500 and then letting it settle to idle, and then shutting it off..... after approx 4 seconds I got a 4 volt surge. Also, I am no longer getting the 3-2-2 code. I get a 1-1-1. I am at work though, so I haven't been able to go on a long test drive, but I think the good used AMM did the trick.
Now I just need to see if I can get IPD to take back the rebuilt one. I talked to one of the sales staff last week and asked him if there was a posibilty the Rebuilt AMM could be causing me the problem and he said he didn't think so, but he said if there was a problem then I could send it back and then they would send it back to the rebuilder. Nice of them I guess, but I would rather have my $150.00 back. Anyway, one more problem out of the way.... now need to figure out why my ABS light is on. It came on about a month ago right after I replaced the rear shocks. I know there is no way they are related but it was strange... No light. Jack the rear of the car up and replace the shocks, let it down, and the moment I let the clutch out to move the light came on :( It's always something! BUT, I don't have a car payment!! :) Thanks so much for the help!


OH..... I had another question if I may... My condenser fan (electric one) burned up yesterday. Not surprising given the age of my machine and with this intense Texas heat. Anyway, I have seen the Bosch looking copies on Ebay for sale for $100 and was wondering if you, or anyone reading this had any good/bad experiences with one? I figure it's most likely junk from China like everything else is, so I was thinking of just putting an aftermarket Hayden fan on that's $70 at O'Reilly Auto Parts. I have had a Hayden on my 87 240 for 20 years now and it's still doing a good job helping the A/C condenser out. (condensor or condenser??) The Hayden 14" has a CFM rating of 1250 if I remember correctly. I have been unable to find any CFM ratings on the OEM Bosch fan that came on my 91 240.