So i have an 89 gl spfi
it will randomly sputter hesitate and almost backfire, buck and lose all power like it stopped getting fuel.
now i thought this was due to bad/water in the gas as the car had no gas cap.
so i drained the tank dry, oddly it ran for a whole 30 mins and drove around the block 6 times and then to the gas station with no gas...magic
put $20 and some seafoam in the tank. problem still persists.
it only does it after about 45 minutes of driving. otherwise it runs great although a little gutless.
the car came with 4 new parts still in the box, an oil pressure sender, which it needed. cap and rotor, which it needed. and intake manifold gaskets.
i replaced the stupid bosch platinums with ngk coppers and noticed something odd, the #3 cyl the electrode was almost white while the other three were tan as normal.
My guess is the timing is off leading to the gutless and rough idle but the random hesitation has me stumped.
could it be the fuel pump starting to go out? or could the PO have been right and the intake gaskets need replacing? i havnet sprayed around yet.
also it was low on coolant, and there appears to be stop leak in the rad... head gasket maybe??
the CEL reads egr solenoid. so its not that.
Edited by AKghandi, 14 August 2014 - 01:02 PM.