D16 Vtec + Megasquirt.

[cmspaz]

Sounds like a vacuum problem to me.

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

[Febo]

Originally Posted by iceminion

well, my logic is: car is broke, megasquirt is $150 shipped, and it WILL fix ALL of the cars running issues.

and since megasquirt runs with a map sensor stock, and can accept boost stock WHY NOT TURBO IT?!?!?!?

Like I said, I like your logic haha. Should be a fun car.

Originally Posted by cmspaz

Sounds like a vacuum problem to me.

This is easier to find when boost is running thru the lines.

[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.

[4seasons69]

Originally Posted by cmspaz

Sounds like a vacuum problem to me.

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

it's a map car if it had a vacuum leak it would idle high not low. and as for vacuum leaks being irrelavent they still are relavent they just cause different problems then they would on a maf car. a stuck open egr valve could cause this though