Ok after about 3 years of trying to get my car done its finaly happend. Everything seems great except I seem to have a "hole" in the throttle. When taking off from a stand still or a slow roll, just above idle the engine hesitates or bogs and pops a little. As soon as its past that point it takes off. My first though was that the TPS was bad but I checked that with a DMM and it has no dips in voltage from what I can see. So far it hasnt thrown any codes, but I know this isnt right. Im not sure what exacly is wrong, so if anyone has an Idea it would help alot.

Thanks,
Kevin

 

fuel pressure is?
the pop usually indicates lean
airdeano

 

How much above idle? can you set the idle to the point where it bogs and see how it does from there?

 

Not sure on the exact fuel pressure, some where around 58 last time I checked it, I think. If anything I have it set to high.

My best guess is that the problem is right around 1300 rpm.


Here is the latest info. From what I can tell it does this when ever it hits that certain rpm no matter what gear it is in. Because it does it when taking off or if I have the car in D doing about 40 mph, or in OD doing about 60 mph. I decided that being that it was only at a certain rpm and I figured I could avoid that rpm by keeping it in a different gear that it would be ok to drive. So friday night I drove the car home from up north where I have been working on it(about 180 mph trip) It ran great all the way home, no problems at all other than the few time I had to stop and then I would hit that rpm when starting out again. I made it home, getting about 15 mpg, temp stayed right around 180 all the way, no codes or ses light. I got home parked it in the garage, and today the damn thing runs for crap. Now its not just a hole, anything above idle and it starts poping and sputtering, but it does idle fine on its own.

So now Im starting to get really lost as far as what to do. Hope someone can help.

Kevin

 

my car, popped & bucked at around 1,800-1,900 rpms, bad plugs.