b1m2x3

Looks like i got a problem with my '90...

Last week i went to start it, and it barely stumbled to life. I assumed it was a problem with the injectors since i never had them cleaned after i got them, so i sent them out. They came back and were fine.

Now after installing them, the car starts, and idles fine, until i give it gas. After letting off, the rev's drop to ~150-200rpms as it almost stalls, then rise back up to ~900-1000rpm, then drop to 500, and finally settle at 900.

The dashpot isnt the problem, and when grnd+ten are jumped, revs constantly go from 200 to 800 to 200 and so on until it's removed.

Any ideas?

rharris19

iTrader: (41)

To me it sounds like the idle air control valve. I had the same problem on mine and that's what it was for me. The GRD TEN thing seems weird to me, but i never did that when i had the problem. It is either that or a vacuum leak somewhere.

b1m2x3

tested vac and it's around 19-20lb when the idle is steady so i dont think there's a leak

Looks like i'll have to try and clean that idle valve. damn.

zoomin

iTrader: (16)

can't a weak alternator do this sometimes?

rharris19

iTrader: (41)

Actually that would make sense for the almost dying part after giving it gas, but what about the GRD TEN part? What exactly does that jumper do? I know what function it serves to do it, but what changes when you do that? That would be where i would start. Find out what making that jumper does in the first place.