AVCR and throttle input

[ILikeCarsYesIDo]

When driving normally, I have the slightest hesitation. Say I am at a stoplight and I am taking off in first, then second, etc. The hesitation is barely felt, but it's there. I have only had this problem on this engine, not with my original engine. There are no vacuum leaks, nor any boost leaks. I believe that this is somehow related to either the throttle body, TPS, or the throttle cable.

Regarding the AVCR: When I have been driving for awhile at cruise, I will notice that my throttle input is a lot lower than it should be. I will have cruise control set at 75 MPH. Normally for cruise on flat will be around 8-12% if I recall correctly. It will show 0.0% input. If I watch it, I will see the input gradually lower itself eventually to 0.0%.

I am thinking that a possibility may be the different throttle body and TPS, as they weren't on the original engine. As in my other thread, I have noticed that my vacuum at cruise is a lot lower (or higher should I say?) than I have been accustomed to. Before it was about -330 mmHg, and now it sits at about -390 mmHg.

Any ideas?

I should also note that the throttle body on the new engine is off of an automatic, which may or may not have something to do with it.

 

[Nghty89]

I couldn't truly tell you. Mine runs around 500 to 330 mmhg when cruising, all depends on how much throttle I have going. I don't have cruise control anymore though, so I may have a slightly different number. I popped my throttle cable on the highway last night and ghetto rigged it with zip ties to get home. Just had to take up the slack. Check your cable and see if it's tight enough, My car hesitated too until last night, once we took up the slack it doesn't hesitate so much.

 

[IJ.]

My AVCR used to do the same thing at cruise.