e46 M3: Throttle actuator failure after supercharging!

Azn_homer · Tue, Jun-30-2009, 03:46:54 PM

Throttle actuator failure after supercharging! Any body experience it before? What are the symptoms?

DLSJ5 · Wed, Jul-01-2009, 03:28:50 AM

Quote:

Originally Posted by Azn_homer

Throttle actuator failure after supercharging! Any body experience it before? What are the symptoms?

Check the heads of the clamps on the TB's, make sure they are not hitting the tiny bolts on the on the TB rail, this is a common mistake after supercharger installs.

**MSpired** · Wed, Jul-01-2009, 06:39:37 AM

Quote:

Originally Posted by DLSJ5

Check the heads of the clamps on the TB's, make sure they are not hitting the tiny bolts on the on the TB rail, this is a common mistake after supercharger installs.

x2 I took off my mani once and put it back on and one of the clamps around the throttle bodies was in the way of the throttle linkage.

Azn_homer · Wed, Jul-01-2009, 06:57:51 AM

Quote:

Originally Posted by DLSJ5

Check the heads of the clamps on the TB's, make sure they are not hitting the tiny bolts on the on the TB rail, this is a common mistake after supercharger installs.

Thanks for the advice, I will ask the mechanic to check it. My car has been experiencing limp mode between 3000rpm to 4000rpm

Azn_homer · Wed, Jul-01-2009, 02:47:11 PM

Guys thanks for the tips! The mechanic double checked the clamps and found no issues. However, the car it is throwing out a code for the throttle actuation.

azndrunk74 · Wed, Jul-01-2009, 05:38:47 PM

What are the actual codes thrown? Is there a SES light thrown everytime between 3-4k rpms? Does it stutter/hesitate in that area?

**RaceMX-M3** · Thu, Jul-02-2009, 03:18:34 AM

Quote:

Originally Posted by DLSJ5

Check the heads of the clamps on the TB's, make sure they are not hitting the tiny bolts on the on the TB rail, this is a common mistake after supercharger installs.

x3 when my VF kit was installed it went into limp mode every time I pressed the throttle past a certain point. Intake coupler clamps were obstructing the throttle linkage. Have them look again, I believe there's at least two places this can occur and one of them is buried way behind the last throttle intake by the firewall. good luck.

Also there is a BMW software program that must be run to teach the throttle actuator to relearn open/close positions. Make sure you run this as well.

Reach · Thu, Jul-02-2009, 04:43:19 AM

Could be coincidental failure of the TPS? Something to check (electronically) and an easy fix if so.

kuruca · Thu, Jul-02-2009, 05:43:51 AM

check all the clamps and the fuel return line, it is probably touching.

Azn_homer · Thu, Jul-02-2009, 06:58:02 AM

I will relay the messages back to the mechanic, will keep you guys posted. I am currently working overseas, didn’t experience the issue my self.

Tue, Jun-30-2009, 03:46:54 PM	#1
Azn_homer ///M H-Town Join Date: Feb 2009 Posts: 341 Reputation: 0 Location: H-Town	e46 M3: Throttle actuator failure after supercharging! Throttle actuator failure after supercharging! Any body experience it before? What are the symptoms?

Wed, Jul-01-2009, 05:38:47 PM	#6
azndrunk74 Registered User Join Date: Aug 2007 Posts: 2,709 Reputation: 0 Location: Bay Area	What are the actual codes thrown? Is there a SES light thrown everytime between 3-4k rpms? Does it stutter/hesitate in that area? __________________ LSB\|Cinnamon\|VCSL GTS3 Diffuser\|VCSL Bumper\|VCSL Single Sided CF Bootlid\|UUC EVO2\|AVIC Z3\|Bilstein PSS9\|GC RSMs\|SPC Aluminum ARCAs\|Volk LE37\|ZCP Brakes\|Headers\|Euro Cats\|AA Gen3

Thu, Jul-02-2009, 04:43:19 AM	#8
Reach Registered User Join Date: Nov 2007 Posts: 2,137 Reputation: 0 Location: Raleigh NC	Could be coincidental failure of the TPS? Something to check (electronically) and an easy fix if so. __________________

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Wed, Jul-01-2009, 02:47:11 PM	#5
Azn_homer ///M H-Town Join Date: Feb 2009 Posts: 341 Reputation: 0 Location: H-Town	Guys thanks for the tips! The mechanic double checked the clamps and found no issues. However, the car it is throwing out a code for the throttle actuation.

Thu, Jul-02-2009, 05:43:51 AM	#9
kuruca Registered User Join Date: May 2007 Posts: 520 Reputation: 0	check all the clamps and the fuel return line, it is probably touching.

Thu, Jul-02-2009, 06:58:02 AM	#10
Azn_homer ///M H-Town Join Date: Feb 2009 Posts: 341 Reputation: 0 Location: H-Town	I will relay the messages back to the mechanic, will keep you guys posted. I am currently working overseas, didn’t experience the issue my self.