I ran over all of my work i've done, redid my spark plugs, checked my wires for the 10 millionth time, timed it to 6 btdc like alldata says following their directions to the t, and i'm still hitting a slight jerk, not as severe, when i hit 50. HOw long does it take to check and how do i do it? Also how much for a new one and what do i need to install it>?

 

https://www.thirdgen.org/tpimod2

The cost varies depending on where you purchase one at... Look at autozone.com

Why didn't you ask this in your other post???

 

The stock ignition timing for an '89 TBI is 0 degrees, w/the EST connector open.

RBob.

 

well, it runs like complete crap at 0, so 6 seems to be working for me lol

 

That may be a sign that something else is wrong. Is the engine stock? If so, then it should run OK with stock timing.

RBob.

 

to be honest i coudlnt say, i keep finding new things on this car, telling me that theres no way in hell this engine is 20 years old, im slowly piecin the puzzle together though