This is a weird one to me: 305 TPI starts fine and quick, runs pretty good, but if you shut it off to run into the 7-11 to grab a coffee on the way to work, when you come out here's the drill:
1. Start engine - fine so far
2. Push in clutch, put in reverse, back out of spot, probably still okay, drive 15 -30 seconds to edge of parking lot,
3. Push clutch to floor and check the traffic - and it DIES! (while clutch pedal is on the floor)

I've changed plugs, wires, dist cap and rotor, air filter, even the single wire O2 sensor. If I didn't know better I'd say it's trying to go to closed loop and the O2 isn't warm enough to read it right. No mods to car yet (I just got it), assuming it's a factory TPI 5-speed setup.

Ideas or suggestions, anyone?

 

Have you done the other little things...
fuel filter, TPS sensor adjustment, IAC...
you can find information on these in the tech articles.

 

A friend had this problem with his TPI 5spd and it would stall when you took your foot off the acclerator. It would always start back up immediately and always run as long as you were not idling. It ended up being the pick-up on the distributor. It was rusted because the car had been sitting for a long time. He ended up replacing the distributor and it fixed the problem.

 

Sorry for the slowness in posting the resolution....

After talking to several folks, I decided to change out the EGR valve. It was almost competely plugged and wouldn't move freely at all. Lots of black soot everywhere. In the plenum and runners as well. Cleaned all that out, removed the 160 thermostat and put in a 195 (a retired GM factory tech suggested this one as a cause of the soot - running too rich/cold), and a new EGR valve and haven't had a problem since.

Thanks to all for the assistance!!!!!



- Vern

 

I am having this same problem with my 88 auto... could there be ANY other problems other than the distibutor, or EGR valve???


Wendell

 

Yeah, check your throttle body plates. Make sure it's not all carboned up on the back side of them and that there isn't a bunch of carbon in the bores just behind the plates. That could be blocking the idle air flow around the minute gap around the blades when the throttle is closed.

Good Luck!!!


- Vern