89FormulaMan

iTrader: (-1)

Hello,

got this problem out of no where. when my car gets warmed up, it starts to bog out and the RPM's jump and the car stalls out and runs like crap. once the car cools off, it starts right up and runs normal again until it heats up. i just noticed that the 2nd fan of the car is now turning on so i don't know if one has to do with the other. can anyone assist? PLEASE!!!!!!!!!!!!!

Thanks

ex-x-fire

Need more info,, tbi, tpi, carb, ect.

89FormulaMan

iTrader: (-1)

350 TPI fuel injectio. just as an FYI, the problem started just after I had the pass side header gasket replaced. Dont know if that was just a coincidence or not.

89FormulaMan

iTrader: (-1)

350 TPI fuel injection. just as an FYI, the problem started just after I had the pass side header gasket replaced. Dont know if that was just a coincidence or not.

ex-x-fire

Put a fuel pressure gauge on it when its acting up.

TTOP350

iTrader: (8)

Ohm injs when cold then warm.
check fuel psi.
Check ign modual.
Check pickup coil.
Check coil.
check MAF.

a62belair

Temp sensor still disconnected, broken?

89FormulaMan

iTrader: (-1)

Ok, sounds like a plan of where to start. Most appreciate the response

89FormulaMan

iTrader: (-1)

this is on the pass side by the header right? if so, it is still connected. I dont know if the secondary fan not working has something to do with this issue?

mene0013

I have the same issue. 88 350 tpi stock. When the car warms up it sidles high (1000rpm in park). Temp sensor is new, fuel filter is new, fresh oil change done, etc

conlinj

iTrader: (3)

Most likely bad injectors

conlinj

iTrader: (3)

I think he means the ECU temp sensor which is on the front of the intake manifold under the thermostat area. The one on the passenger side controls the secondary fan only. There is also another temp sensor on the driver side between 1 and 3 that is for the gauge.

89FormulaMan

iTrader: (-1)

Yes, the one on the pass manifold controls the secondary fan. Do you know which of the 5 relays in the car control that fan? that is the one that I need to check to see why it is not activating. Also on a side notes, I had bad fuel which is why the car was running like crap. All injectors had 17.8 ohms

conlinj

iTrader: (3)

pretty sure on my formula its on the passenger side next to the radiator.

Tuned Performance

iTrader: (92)

I wonder if someone swapped the knock sensor plug with the coolant temperature sensor between cylinders 6 & 8.

89FormulaMan

iTrader: (-1)

I see 2. one on the radiator itself and another by the air cleaner on the pass fender. Those were the 2 that I checked first.