- Nov 12, 2016
- 110
- 2
- 18
So my 87 gt has a e303, gt-40 intake, 1.7 rr, new lifters (stock replacement), hardened pushrods, shorty headers.. I've tried a million different things here.. I've gotten the car timed to a 10 and plugged the spout connector back in and it ran fine till i tried to drive it and once it warmed up or ran longer it only seemed to idle worse (not just lope.. surge off and on).
Things I've already replaced/checked -
*New Cap/rotor (msd)
*Tried a few different pair of spark plug wires...
*New spark plugs (NGK G-power)
*Checked voltage on Throttle Position Sensor (.98 closed - 3.4 open all the way)
*Vacuum to Fuel Pressure Regulator (and a few month old fuel pressure regulator in the car)
*New vacuum line to MAP sensor (good vacuum there)
*New/used fuel injectors (stock 19# off ebay.. I tried 30# and it really ran rich as heck)
Side note - I know its running pig rich because it'll foul plugs pretty quickly.. and it burns my eyes with smoke in the garage..
Also I do not have the O2s hooked up yet.. I know this could be helpful but i haven't had time to take my xpipe in to have new bungs welded in.
Any suggestion?
Things I've already replaced/checked -
*New Cap/rotor (msd)
*Tried a few different pair of spark plug wires...
*New spark plugs (NGK G-power)
*Checked voltage on Throttle Position Sensor (.98 closed - 3.4 open all the way)
*Vacuum to Fuel Pressure Regulator (and a few month old fuel pressure regulator in the car)
*New vacuum line to MAP sensor (good vacuum there)
*New/used fuel injectors (stock 19# off ebay.. I tried 30# and it really ran rich as heck)
Side note - I know its running pig rich because it'll foul plugs pretty quickly.. and it burns my eyes with smoke in the garage..
Also I do not have the O2s hooked up yet.. I know this could be helpful but i haven't had time to take my xpipe in to have new bungs welded in.
Any suggestion?