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try adjusting the ignition timing(or getting a mechanic to do it)
Right from the 1991 Explorer , the 4.0 L OHV engine was EDIS ( electronic distributorless ignition system ) using a coil pack instead of a distributor
ignition problem
Were are the timing marks on a 1991 acura legend
wich engine do you have?
8 degrees
If you mean ignition timing it will be 10 degrees BTC.
10 degrees advance
IF you have already set the timing to spec, you alter timing by loosening the distributor and turning the base to adjust timing. You will need a timing light to measure the timing. Pull out the spout before adjusting so the computer will not alter the timing. HTH.
Probably computer controlled and not adjustable
you should set it at 0 degrees btdc
1-6-5-4-3-2-.