if no one has done any fiddle fartin around with your truck
the ignition was set at factory ....... needs NOT be touched EVER !!!
no less it changes by the seconds ALL the time
even while idling
or running in any gear
slow.....fast
does not matter
the ECU is constantly changing it
it is NOT a static timing
like back in dinosaur days
the ignition was set at factory ....... needs NOT be touched EVER !!!
no less it changes by the seconds ALL the time
even while idling
or running in any gear
slow.....fast
does not matter
the ECU is constantly changing it
it is NOT a static timing
like back in dinosaur days