my Yucon is 95 so to read the correct RPM i must have diesel pulley on alternator (2-5/8" OD)
upgraded my alternator to CS-244, more reable, and works fine from more then 10 years
but it cames with gasser pulley, also later diesel alternators 96-99 works with smaller gasser pulley (2-3/8" OD)
now want to try have the right RPM on tach (it are reading about 300 - 350 RPM more).
know tach signal comes from alternator regulator (PIN P - white wire) also for later model 96-99 but work with smaller pulley, same gasser pulley.
so for later models GM change tachometer spec
thought that the tachometer stepper motor had some resistance jumpered on the two of the four pins, and it was enough to remove or modify it. voltmeter, engine water temperature, oil pressure, fuel level, all work with a specific resistance.....that would have been simple enough
knew the speedometer was controlled by a circuit board but after opening the panel .... found that the tachometer is also managed by the same circuit board.
not as simple as I thought
it would be enough to find an electronic card in some salvageyard and replace it, but not so easy to find overseas, or impossible.
to complicate matters further my speedometer reads in KM/H (for overseas model). so i would have to modify it anyway
for 96-99 diesel models this circuit board is identified with # 16183928E is used as basis (also used on gasser models but with different components).
found some pics online but came from gasser, not usefull for my purpose.
anyone has ability or can access and post some front and back pics of this circuit board # 16183928E for diesel?
this would help me alot
this is my 95 circuit board
upgraded my alternator to CS-244, more reable, and works fine from more then 10 years
but it cames with gasser pulley, also later diesel alternators 96-99 works with smaller gasser pulley (2-3/8" OD)
now want to try have the right RPM on tach (it are reading about 300 - 350 RPM more).
know tach signal comes from alternator regulator (PIN P - white wire) also for later model 96-99 but work with smaller pulley, same gasser pulley.
so for later models GM change tachometer spec
thought that the tachometer stepper motor had some resistance jumpered on the two of the four pins, and it was enough to remove or modify it. voltmeter, engine water temperature, oil pressure, fuel level, all work with a specific resistance.....that would have been simple enough
knew the speedometer was controlled by a circuit board but after opening the panel .... found that the tachometer is also managed by the same circuit board.
not as simple as I thought
it would be enough to find an electronic card in some salvageyard and replace it, but not so easy to find overseas, or impossible.
to complicate matters further my speedometer reads in KM/H (for overseas model). so i would have to modify it anyway
for 96-99 diesel models this circuit board is identified with # 16183928E is used as basis (also used on gasser models but with different components).
found some pics online but came from gasser, not usefull for my purpose.
anyone has ability or can access and post some front and back pics of this circuit board # 16183928E for diesel?
this would help me alot
this is my 95 circuit board
