Dying at Idle

[Sevenupfox]

I'm young and new to both the foxbody and project car game so I'm not the most skilled in solving issues. A couple weeks ago I bought a 90 5.0 to get into this. It's been dying at idle in town at lights. I bought a timing light to bump back timing so the engine would run smoother but the closer I get to 10 degrees the closer it gets to dying. Is adjusting tps something I should look into? Any ideas are appreciated. I have I video of it running but it's too big to attach the file.

 

[broncojunkie]

Welcome! First of, why retard the timing if it runs better advanced? And while adjusting the timing, presuming this car is stock, are you removing the spout connector at the distributor? I know my 79 won't even run at 10 degrees, but she's a different animal lol!

Most of these cars have been modified to some extent, so it helps to know what has been done to it. You can try a base idle reset and definitely check for vacuum leaks. In my experience, a bad or misadjusted tps results in sputtering and popping back through the intake. Don't completely dismiss it, but that one wouldn't be my first guess.

 

[Blueknights75]

As @broncojunkie mentioned try the base idle reset. Are you pulling any engine codes? I would check the IAC, EGR valve and solenoid as those three items fixed a lot of my issues.