Hi all,

It happens irregularly. When travelling at highway speeds and letting off throttle the car will do this:

1) Like someone(invisible) pressing the throttle enough to keep going and NOT accelerate. And then let go totally to decelerate.

2) Again as per above

3) Again as per above ( Optional)

It will do this with 1 second and then accelerate even when I have ease off the throttle totally. I will have to hit the brakes likely to control the additional force forward.

What could have happened?

Thanks!!!

__________________
1992 200E
M102
102.963
AKA Silver Old Grumpy
Always hope I can freeze someone with the aircon- Just change the compressor again, Subseal leaked with a psssssssss sound.
Its the NON-3 Pointed star items on my car that cost more to repair.$%^&%%*^&

So in summary, the car feels like rocking 2-3 times before settling into a stable state which is accelerate.

1) I have check the throttle micro switch to ensure full contact with a click sound.

2) I have ensure MAFS to be clean and non-sticky with the help of Carb cleaner.

3) I have ensure all vaccum hoses are connected and non has cracked.

4) I don't really know how to check the transmission and I don't have a 2 ton jack.

5) OVP and all fuses checked and replaced. O2 connection under driver seat has been cleaned and corrosion free.

6) ECU not checked and I have no idea how to check it.

Thanks!!!

__________________
1992 200E
M102
102.963
AKA Silver Old Grumpy
Always hope I can freeze someone with the aircon- Just change the compressor again, Subseal leaked with a psssssssss sound.
Its the NON-3 Pointed star items on my car that cost more to repair.$%^&%%*^&

Between the AFM and the throttle body is a rubber boot. Its very hard to see, sometimes this boot is cracked and causes hesitation under acceleration.

Hi,

Is it the rubber hose that goes under the engine bay FROM the ICV?

That is the one I could'nt find where the other end goes.

__________________
1992 200E
M102
102.963
AKA Silver Old Grumpy
Always hope I can freeze someone with the aircon- Just change the compressor again, Subseal leaked with a psssssssss sound.
Its the NON-3 Pointed star items on my car that cost more to repair.$%^&%%*^&