well this is really starting to get on my nerves, so first off i have a 89 gxl was having some starting problems before, would turn it over and i would have to pump the gas till is started and couldn't figure out what was goin on. i had it scanned and it came back with a bad maf, idle sensor and tps, i have changed the tps and maf so far and now the damn thing is even harder to start and when it does get goin i have to stay on the gas to keep it goin plus there was some back firing too when i try to start it. someone help i am completely baffled here

 

my buddy just went throught 3 tps. everytime he replaced them, they ran fine for 30 mins, then they crapped out. Are you running rich?

 

yeah it's running rich a bit well smells like it atleast, i was just told that the air intake sensor could be gone too. wow what a day, anyone know if that would make the car not run and i smell gas on the oil dipstick as well.

 

How many miles are on the engine?

 

Listen, as a test, simply place your car in nuetral, and this may hurt you more than a kick to the nuts, but allow some one to push it. Get up alittle speed, throw it in first and let off the clutch. Your car'll definently start, but wit alot of buck. I had to this very thing, for I played with the ignition and dumped an over accessive amount of fuel into the engine. It'll start, but allow it to idle for a while to burn off the fat. It should crank fine afterwards. It happens, but afterwards still investigate other av's.

 

it's got 268 but rebuilt just over a hundred ago, when it was scanned it came back with water thermo and air intake sensor faults. guys on the fc3s forum said this woud be a possible prob as to why it starts so hard and won't stay running, ihave to stay on the gas to keep her goin

 

Have you checked for vacuum leaks?

Condition of plugs and wires?

Timing?

How's compression?

What is the general condition of the wiring harness? That many faults probably means that something serious is wrong with the emissions harness...

 

I can attest to that

 

agreed.

also look at the fsm and start using a multimeter to check the sensors before you keep replacing everything.