D16 Vtec + Megasquirt.

[iceminion]

Originally Posted by cmspaz

Sounds like a vacuum problem to me.

My truck got the same symptoms when the EGR valve seized.

Do you think, that, even if the EGR was jammed all the way open, would it cause issues like this?

And vacuum leaks? this car is MAP, it reads the pressure in the manifold and adjusts fuel accordingly, vaccum leaks on this car = irrelevant.

[cmspaz]

Originally Posted by iceminion

Do you think, that, even if the EGR was jammed all the way open, would it cause issues like this?

And vacuum leaks? this car is MAP, it reads the pressure in the manifold and adjusts fuel accordingly, vaccum leaks on this car = irrelevant.

I'll have to dig out the Chilton for it, I sold the truck years ago. I didn't do much work on it myself, so I'm not sure if it was MAP or MAF. It was the Isuzu 2.4l, if anyone knows.

Regardless, when the valve seized, it wouldn't even idle without being held at partial throttle.