SPONSORED LINKS

Car constantly in limp mode and throttle not accelerating?

Tiny
UZOMAKIY
  • MEMBER
  • 2006 BMW 330
  • 6 CYL
  • 2WD
  • MANUAL
  • 180,000 MILES
I have the car listed above 300i and the throttle not working and car in constant limp mode.

I have changed the following parts below as I was trying to fix the problem:
1Throttle body
2Throttle pedal
3Mass air flow meter
4Coils
5Map
6Vanos
7camshaft both

Please, I need help guys. Ps the code for electric water pump was because I disconnected it before scanning for error code via INPA.
Image (Click to make bigger)
Thumb
SPONSORED LINKS
Tuesday, May 23rd, 2023 AT 1:42 PM

4 Replies

Tiny
UZOMAKIY
  • MEMBER
  • 3 POSTS
Expand. Once you start the car the RPM goes up and down, the throttle does not respond when a press it.
I have use ista to check the wirings from dme to throttle body and throttle pedal there where no cut.

When I use ista or INPA the pedal potentiometer signal read which show it work and once I start car the rpm jumps. But once I use INPA to realign the pedal potentiometer through DSC the rpm become normal and pedal works fine but once I shut the car and restart it goes back to how it was before.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Wednesday, May 24th, 2023 AT 1:39 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,310 POSTS
Hi,

Wow, that's a list. By chance, do you have the P codes? My manual provides multiple P codes for the manufacturer's codes you provided. Each one takes me in a different direction. See pic 1

Also, have you checked the differential pressure sensor (pic 2)?

Let me know.

Joe

See pics below.
Images (Click to make bigger)
Thumb
Thumb
Was this
answer
helpful?
Yes
No
Wednesday, May 24th, 2023 AT 7:26 PM
Tiny
UZOMAKIY
  • MEMBER
  • 3 POSTS
Once you start the car the rpm goes up and down, the throttle does not respond when a press it.
I have use ista to check the wirings from dme to throttle body and throttle pedal there where no cut.

When I use ista or INPA the pedal potentiometer signal read which show it work and once I start car the rpm jumps. But once I use INPA to realign the pedal potentiometer through DSC the rpm become normal and pedal works fine but once I shut the car and restart it goes back to how it was before.

Win last 7 digit - AZ87227
Was this
answer
helpful?
Yes
No
Friday, May 26th, 2023 AT 1:38 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,310 POSTS
Hi,

It sounds like it loses power when the ignition is turned off. By chance, do you have the P codes?

Let me know.

Joe
Was this
answer
helpful?
Yes
No
Friday, May 26th, 2023 AT 9:36 PM

Please login or register to post a reply.

Related Engine Computer Limp Mode - Reduced Power Content

Reduced Power - Limp Mode
GUIDE
Reduced Power - Limp Mode
The computer system that controls your car has a built in safety feature called "Reduced Power" or "Limp Mode" which is designed to get the car where it is...

Sponsored links