been working on these MI-4 systems here and there and looking for the dongle and key to get in the system. anyone out there have on for sale? or know where to get one? terrrible support vs impco systems.
codes 27, 31, 73, 74
the regulator was full of syrup and the fuel trim was intermittent.
replaced both and did full tune up - old plugs looked like they were buring perfect.
cleaned the mixer as a new one is $2000+.
throttle body was oil soaked as well as the TMAP from years of running with minial issues.
gonna grab a crank sensor just in case as this is a field repair.
got these coming in tomorrow.
had it running well one day and the next wont start. cranks and kinda fires then cuts off. seems to drop the spark but hard to tell as it only fires a few seconds.
any help would be appreciated.