ok i have an 89 3.9 and i keep seeing people talking about pulling these two digit codes is it a flash code or what? and how would i go about doing this from my truck?

 

FAQ section https://dodgeforum.com/forum/1st-gen...ml#post1472415

 

To pull codes, you cycle the key "on...off...on...off...on" without starting the engine and then count the flashes by the check engine light. All codes are 2 digits, so there will be a pause between the first and second digits, and a longer pause between the next code. 12 is beginning of codes, 55 is end of codes, so if you see those, don't worry about them.

Example:
flash...flash...flash...flash...flash.........flas h...flash...flash...flash...flash would be 55.