vacuum moving slowly?

[I-luv-em-all]

I was driving my P.O.S today and it didn't seem to be running like it normal.

It wasn't boosting smoothly at all, and when I tried it boosted very slowly and chopy.

Then I looked at my boost gauge and noticed that when I let off the gas the vacuum didn't suck to 20-22hg like usual, it was just moving very oddly, and then it seemed to get out of vacuum a little to fast. I thought it was a kink in the hose or one of the couple vac lines I still have came off or something, but everything checked out normal.

So I then looked at my logger and it was reading 42 counts of knock (I was on the highway at the time) so I immediatly let off and the knock when to 0. So I then looked at everything else and nothing seemed that normal. The INP was 4.03ms which seemed high to me, I don't know. Timing was around 40deg, Ftrl was 139.8% the rest were about 107%. The Maf was 300+hz.

I took a good look at everything and couldn't see anything out of the ordinary, no CEL's, vac lines seemed all good and connected. So I reset the computer. But no help.

What do I do, or check now?

 

[heppm01]

Could be that your timing belt jumped a tooth.

M