Quote:
Originally Posted by Tyler Townsley
They make a DIS module checker, I have one but you might find one local as it will check a LOT of cars with these modules. You also need a scope to watch the spark as you change rpm. The advantage of the checker is you do not have to pull the plenum to check them. I had a problem with one that did not show up until 400 rpm where it began to fall apart. The dis modules are expensive when you can find them.
Re read the thread. To answer a question asked early on and never answered. The O2 sensors information is not used in WOT or power enrichment situations, the ecm jumps to calibration tables that are in the chip. The sensors used in the LT 5 are narrow band and the readings are only accurate in a VERY narrow range around stoic afr 14.7. Any voltages beyond this point high or low are meaningless. The dis module is subject to heat hense the type of grease they used when mounting it to the bottom of the plenum, it was there to promote cooling as the airflow through the plenum cools the plenum base as you drive. Not using this grease when removing/replacing the module begs for future failures. If you want to borrow my checker let me know I have lent it out in the past.
Tyler
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Tyler,
Any chance you have a pic of this DIS checker?