3200 Throttle RESET

Leigh E

New Member
Messages
22
well the one down the breakers will fit nicely in my toolbox :) Its worth grabbing it just in case
 

dem maser

Moderator
Messages
34,220
i want to bring this subject back up, im going to verdi to get my throttle potentiometer done but there was something about contactless, can anyone tell me the difference and whats best
 

williamsmix

Member
Messages
545
The Achilles heal of the 3200 is its 'Drive by Wire' Throttle system.

The pedal throttle pot is Alfa GTV based, but the inlet mounted throttle body is Maserati only. It is based upon a Volvo unit, and David Askew can arrange a refurbished unit if you don't want to folk out the £1600 Maserati.

Over time, the max and minimum values can narrow due to turing on the ignition with your foot on the accelerator pedal and confusing the system. Follow the procedure below to reset:

Closed throttle resetting
1/. Put gear selector/lever in neutral.
2/. Flick accelerator pedal a couple of times with the edge of your shoe to ensure full return is achieved.
3/. Switch ignition 'round as far as MAR.
4/. DO NOT START ENGINE!
5/. Leave all pedals and switches alone for at least 2 minutes.
6/. Switch off ignition.

Full throttle resetting
1/. Put gear selector/lever in neutral.
2/. Switch ignition 'round as far as MAR.
3/. DO NOT START ENGINE!
4/. Gently depress accelerator pedal to full extent of its travel and keep it there for 5 seconds.
5/. Release throttle.
6/. Switch off ignition.
Well, this just proved to be very useful indeed! The throttle pedal on my new 3200 is no longer quite as sensitive when coming out of the closed position. However, I still need a very light right foot compared to anything else I’ve ever driven, but I’ve adjusted to that. Also, I notice that this reset has removed the slight hunting from the idle that I was getting.
 

allandwf

Member
Messages
10,958
Well, this just proved to be very useful indeed! The throttle pedal on my new 3200 is no longer quite as sensitive when coming out of the closed position. However, I still need a very light right foot compared to anything else I’ve ever driven, but I’ve adjusted to that. Also, I notice that this reset has removed the slight hunting from the idle that I was getting.
Unless you use wide open throttle a lot, do a reset every so on, as the car will narrow the band causing more on off response.
 

davy83

Member
Messages
2,809
interesting you reckon its settled the hunting while idling. I do wonder if the ECU does some measurements on the throttle body when you initiate the pedal sensor calibration? Certainly the pedal sensor calibration should not be affecting the idle. unless its an original and the carbon tracks are going, perhaps the signal is fluctuating when it's stationary?
 

williamsmix

Member
Messages
545
interesting you reckon its settled the hunting while idling. I do wonder if the ECU does some measurements on the throttle body when you initiate the pedal sensor calibration? Certainly the pedal sensor calibration should not be affecting the idle. unless its an original and the carbon tracks are going, perhaps the signal is fluctuating when it's stationary?
Both the throttle body and pedal pot have been done on my car in the last few years. It was pulsing a couple of hundred rpm at idle but that stopped directly after the reset. I think this is something I’ll be doing quite frequently as I very rarely get the chance to use full throttle. Maybe the hunting will come back as the full throttle range gradually reduces …
 

rs48635

Member
Messages
3,181
Unless you use wide open throttle a lot, do a reset every so on, as the car will narrow the band causing more on off response.
Rarely needed the reset. When my 3200 was actually in use.
I need the throttle body fix. What is the latest option?