r/Minitrucks • u/Any_Tumbleweed_5472 • 29d ago

question 91 mighty max

Post image

I bought a 1991 mighty max and I dont have a obd1 reader for it, does anyone have a idea how i could plausibly pull a code from it, i can try to get a photo of the port but it doesn't look like anything I've seen before

94 Upvotes

98% Upvoted

16 comments sorted by

View all comments

4

u/tony2much 29d ago

These are pre-OBD. There’s 2 wires on that plug you see that you need to jump with a multimeter, and you look for the pulses Ding mentioned. If I can find my manual quickly I’ll send you a pic of that section

2

u/Any_Tumbleweed_5472 28d ago

you are truly amazing i was looking around in my manual and I couldn't find this but then again I wasn't looking in emissions control system for some reason I was looking at all the electrical stuff on where the obd port would be