After an hour or so drive,the car want to idle super low,and stall.I can keep it from happening by blipping the throttle.I let it die in the driveway,unplugged a vac hose from the decel valve,and fired it up.Of course it fired up and idled at about 1500 rpm or so.I plugged the hoses back in to the decel,and it idles fine,bout 950 rpm.
So what the hell is going on? By creating a vaccuum leak,then stopping the leak,it gets my idle back to where it should be,like magic.Ive checked out Brads site,searched etc..CHT sensor?Doesnt seem like it would be...Im not changing any thing except creating a short temporary vac leak,then stopping it.
The car bucks a teeny bit,but ive attributed that to the TPS(I think!)
Could a bad TPS be creating a crappy idle at temp?
Weird.
Its a 76 w. Stock FI.Also the car actually fires up and idles nicely when cold.