At 05:18 PM 7/19/01 -0400, you wrote:
> >>The A-500 has a 2.74:1 1st, 1.54:1 2nd gear ratios vs.
>the A-518's ratios of 2.45:1 1st and a 1.45:1 2nd. The numerically higher
>first and second will in effect slow his truck off the line since he no
>longer has the gear reduction effect to increase his off the line
>capabilites. This could account for the black smoke pouring out as the
>computer thinks it is turning the first and second ratios of the A-500, but
>in reality it is turning the higher ratios of the A-518.<<
>
>hhhmmm... tis' a posibility! Now comes another question, does the computer
>in an OBD-I truck know it's gear ratios? I mean, you could get an A500 or
>A518 in the V8 trucks, but they both used the same computer. I'll run that
>by him, that could very well be it! =) -miggity
Was the O2 sensor/wiring disturbed during the install or hooked backed up
properly after the install (if removed)? A malfunctioned O2 sensor will cause
the computer to default to a very rich mixture.
Bob
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