Herb,
Thanks. You know, though I still do not know specifically what ECU my 240 has, the LH 2.4 or 3.1. (Or is that the ICU? I ask because I can swear I saw a picture of the Jetronic unit with captioning mentioning LH--) I am taking all your advice to bear but much of this stuff, per your own advice included, seems to revolve around which injection system the car has. I am going to go over all of the diagnostics you mentioned - as many as I can anyway.
So, as regards one of these, that is, checking to make sure the right AMM's installed, I need to know the right processor. I have checked the numbers on the units -- the manufacturer's and the Volvo ones -- and the are: For the ECU (the larger unit, placed in passenger footwell just above where your feet would go): 0227400169 and 353531325, respectively [not sure about the first two digits on that last one; they were cut off by the holder strap; I guessed from a bar code sticker- also cut off - that these were the starting digits of the number , if any]. There is a "4" at the top of the unit -- just a "4"; nothing is blocking the view. For the ICU (the smaller unit, placed to the right of the right foot if you were sitting in the front passenger seat), the numbers are 0280000951 and 6842115 for the manufacturer and Volvo part numbers, respectively. There is also a "CC" somewhere on the bottom of the unit.
Do these help in identifying which LH system it is?
I checked my Haynes manual and it did not provide guidance on figuring this question.
Thanks again in advance for any and all of your help.
Regards. W
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