2.3L ('83-'97) No Start Unless Gas Pedal Floored

[Shran]

89 and up do not have the fuel reservoir that was linked to above. It serves no purpose in a single pump system.

 

[Reece’sPieces]

I tried testing the MAS by unplugging it while the truck was idling, it didn’t kill the engine. Does that mean the MAS is bad? Is there a better way to test it?

 

[Reece’sPieces]

Just tested the mass airflow sensor, (I’ve been calling it MAS for short). Checked all the voltages with a multi meter and it seems to be working good

 

[Reece’sPieces]

I’m gonna go ahead and replace t he FPR because I smell gas in the line connecting to it. Worst case scenario I waste $30-40

 

[Reece’sPieces]

I just replaced the FPR. It's a real pain to get to on my truck, had to remove the alternator and unplug some things. Good news. It started up after that about 10 times in a row without me needing to push on the gas. I'm gonna test it a few more times in the morning or tomorrow night before calling this case closed.

Thanks guys for all the help so far!

 

[RonD]

Good work

 

[Reece’sPieces]

I finally got my truck put back together after doing a bunch of work on it. It still isn't starting right every time, but it's gotten better. I did the throttle cable mod and removed about an inch of slack; between that and some new parts, I'm noticing a pretty good increase in power. I'm gonna keep updating this thread until I get it starting up good every time. I'm gonna do some more work on it this weekend and check the timing and more of the sensors.