look at your knock sensor. a bad knock sensor won't be able to advance or retard timing in boost or at wot. make sure its plugged in and not melted looking. that would be the first thing i'd look at

Sep 1: Boost leak test.

Step2:
Check your plugs and wires...

97 eclenger said:

look at your knock sensor. a bad knock sensor won't be able to advance or retard timing in boost or at wot. make sure its plugged in and not melted looking. that would be the first thing i'd look at

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That sounds like a good idea. Now i have searched for the location of the knock sensor and what i have seen is its located on the front of the block and plugs in by the fuel rail. If i am wrong please guide me in the correct direction

The knock sensor will be under the intake manifold on the engine block kind of toward the middle, A lot of times when it goes bad it will be "leaking" black goop

Do what 2gmitsu implied before you start chasing a hunch, and do a boost leak test first.

I hate to restate what someone has said before me, but just to hammer in the point. Do a boost leak FIRST! This problem is usually related to a boost leak. There are LOTS of places you can possibly be leaking boost.

If that does not fix your problem, come back and let us know.

gusu said:

I hate to restate what someone has said before me, but just to hammer in the point. Do a boost leak FIRST! This problem is usually related to a boost leak. There are LOTS of places you can possibly be leaking boost.

If that does not fix your problem, come back and let us know.

Click to expand...

Thank you for the help, i plan on doing the boost leak check, checking my plugs and wires, i jusy wanted to get a few more ideas so i could chase a few things down instead of one thing then post, one more thing then post. I have not really got to really dig in to it yet. But i do know it drives perfect as long as i dont go above 0 on the boost. Tomorrow i will be doing some digging to hopefully find the problem. Thank you again. Will keep you all posted.

What did you figure out? Was it boost leaks, or a bad knock sensor? just wondering because i get hesitation in boost too. Car drives fine until the boost starts to build up. Then it seems to "bog down" or hesitate for a moment or 2 and then slowly builds boost. Doing a boost leak test today once it warms up a little outside. Living in Minnesota without a garage makes it hard to get work done sometimes.

It sounds like a boost leak, but usually a boost leak the car just feels like it bogs down and you hear a random hiss or dolphin air squirt

It could also be bad spark plugs.

If you have free time replace your spark plugs with copper ngk plugs or copper autolite plugs. Do not use platinum or iridium as they do not have the same large arch as a copper plug.

A boost leak tester is easy to make when you have some free time, basically you use a pump to fill the system with air to see if if holds a constant pressure.

I had an issue before where anything over vacuum hesitated like you said and it turned out to be I forgot to plug my mass airflow sensor back in. Never hurts to check I guess.