if you have seen my build thread "project vivian," you would know that i have been building my 89 vert from the ground up. everythings been going pretty smooth, until i went to change my stock, broken mounts, for delrin ones from re-speed. now heres the problem, ever since i did that, my idle lumps around, or stays at 1k-1200 rpm, until i depress the cluth, and then it drops down quite a bit, to around 500 rpm. only happened after the mounts. wtf? anyone had this happen?
at this point in time, i cant get my car to idle at all, and im getting **** poor gas milage, so im replacing the tps and getting rebuilt injectors.
someone wanna help me out?

 

Seems like w/the clutch depressed there is more load on the engine and the BAC ought to compensate for this and prevent the idle speed from dropping so much. Also, the charging voltage probably drops as well when the idle speed falters and this could cause a rough idle perhaps. And look for vacuum leaks as well.

 

ok, there are no vacuum leaks, but ill spec out the bac and see whatsup with it, i have a spare engine with all the bits on there.
hopefully i can get this fixed, cause i look like an idiot sitting in traffic with the idle constantly hunting...

Lloyd

 

Mine does the same thing. Try reseting the TPS and possibly idle. It went away for a while but came back after my intake work.