rogh idle, stall problem
 

hey all.. new here.. im workin on my buddys 91 b2200(fi) now got it to start, but idles rough. and if you give it any gas it stalls.. but will idle..and if you let off the gas it was go back to idling after it tries to stall..

has a newish fuel pmp.(was done under a year ago, but truck was stored for alot of that.) has good spark, and a good injector pulse..

ive played with the timing but to no avail..

i also just did the head gaskt, and ive checked the cam/distributor timing about 12 times, and it seem to be good..

any other ideas as to what it could be??

thanks

Fuel filter?

make sure the EGR valve is closing at idle.

well i still cant this thing to work... and where the heck is the egr on the efi models?

compression test was good(170-175 across the board) new plugs, cam/dist. timing is good.. good injector signal.. but still pops thru the exhaust and doesnt run worth ****.. and NOT throwin a code..

Good question - I'm not sure EFI models have them.