my problem- i discovered that the person b4 me was running a obd1 engine harness with a obd2 ecu along with a ls dizzy...ive spent the last 2 days wrking on it to get it right (i changed the dizzy to a gsr and re-timed it, it also had a s***y fuel pressure reg so i put a stock one back on. as soon as i started it up it ran like s***! stumbles and wants to die at idle. so i changed back to the ls thinking that there was a problem with distributer and still have the same problem...i did a power palance test and number 1 is the culprit...i bought new plugs and wires and it did a lil better but didnt fix the problem. i also unpluged the #1 injector and found out that it is not spitting right so i swapped it for a new one but nothing. however when i took it for a drive and got on it it ran amazing!!!!! torque steer and i chirped through 3rd! but when ever it is ideling i have this problem....any help would be GREAT!
All Motor / Drivetrain
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