dash replacement
#1
07-22-2009, 10:26 PM
Join Date: May 2009
Location: Nebraska
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#3
07-24-2009, 10:58 PM
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#4
07-24-2009, 11:55 PM
Not real tachs??? The tach is very real, and it's driven by the computer because the ignition system is driven by the computer. The computer holds the ground for the ignition coil until the crankshaft position sensor goes over the hole in the flexplate (or flywheel), then it ungrounds the ignition coil and allows it to be grounded to whichever spark plug is aligned with the distributor. The ignition timing in these trucks is soley controlled by the computer.
Last edited by 95_318SLT; 07-25-2009 at 12:30 AM.
#5
07-25-2009, 12:04 AM
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Location: Winnipeg, Manitoba, Canada
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Not real tachs??? The tach is very real, and it's driven by the computer because the ignition system is driven by the computer. The computer holds the ground for the ignition coil until the crankshaft position sensor goes over the hole in the flexplate (or flywheel), then it ungrounds the ignition coil and allows it to be grounded to whichever spark plug is aligned with the distributor. The ignition timing in these trucks is soley controlled by the computer, which is why the mp pcm requires 93 octane, cause it retards the timing to compress the gas more, but I digress.
#6
07-25-2009, 12:08 AM
