I replaced the MAF after both a voltage and Actron 9190 Scan Tool readout showing high numbers (1800-1900 gm/sec at idle). This was not the issue. I must assume that the Actron doesnít put the MAF numbers in the right range. I noticed another post where someone had similar MAF numbers http://www.bonnevilleclub.com/forum/...af+scan+actron
WOT is showing >15000 gm/sec. The FSM says 6 typ (0 -255.9). I had about 3.2 V instead of 2.5 V when measured with DVM but I donít know if thatí* what it should be http://www.wellsmfgcorp.com/pdf/Counterpoint3_2.pdf
At least it is linear. I will get some accurate MPG numbers soon (see below).
By the way GM genuine only sells remanufactured MAFí* for this year (93) and the part I got had OEM # AFH50M-02C (the 92 units) so it appears they consider the two yrs the same part#88961002
I now have a working dash. United Radio is a doing a great job remanufacturing these early dashes. They got mine on Wed and it came back on Friday. They reprogram your mileage as well. I didnít ask but I think the reasonable price ($155 with shipping included) is a result of the high failure rate (I actually had a remanufactured unit in my car when NEW!) which I believe was caused by the 3 layer circuit board technology of the early 90í*. I believe a large percentage of intermittent problems that get posted about the cluster are traceable to this issue. So donít delay and get it done.