throttle pedal position sensor

Richarddiscoverytwo

Member

Posts

97

• Apr 24, 2014

• #1

I have a Disco 2 TD5 2003

I fitted a second hand pedal (bought as tried and tested and in perfect working order) - but now it is in limp home mode all the time (M&S lights flashing).

I have tried switching off, getting out, locking car, getting back in and starting up again - but no change.

My code reader is giving me 3165 - faults detected with driver demand

Does this mean the second hand pedal is no good?
Or is there some other reason for being in 'limp home' mode?

 

biggeeeee

Retired - Living the dream

Posts

11,090

Location

Lanarkshire or Argyll

• Apr 24, 2014

• #2

Google search on the fault code throws up many answers but a lot pointing to the wiring between the pedal and the ECU, some have rewired and cured the problem

 

Richarddiscoverytwo

Member

Posts

97

• Apr 24, 2014

• #3

Thanks for quick response. My thinking is that I doubt if it is a wiring issue as before I fitted the second hand new pedal I could drive it.

 

johnlad

Well-Known Member

Posts

5,601

Location

Blackpool

• Apr 24, 2014

• #4

dont know the year yours is, but i think early 2 pot pedal wont work on later 3 pot car

 

sierrafery

Well-Known Member

Posts

17,871

Location

Arad/Romania

• Apr 24, 2014

• #5

johnlad said:

dont know the year yours is, but i think early 2 pot pedal wont work on later 3 pot car

Click to expand...

+1 for that^^^ if the SH pedal you've got is early 2 track modell it will not work on your facelift... or actually the pedal you've got is faulty... now as you wanted to go cheap spend some more money for a proper diagnostic with tester and read live data on TP inputs

 

E

eightinavee

Well-Known Member

Posts

3,956

Location

UK.

• Apr 24, 2014

• #6

May not be the throttle pedal,the ecu outputs a 5v supply to it - and several other sensors around the engine.Check the loom hasn't rubbed through,esp around the front of the cyl head/AC compressor area.Easy to do and can save some money.Scoping the outputs of the throttle pedal is a reliable way of checking the throttle pedal,but is not always easy to get checked if local garages don't have the kit.

 

Richarddiscoverytwo

Member

Posts

97

• Apr 25, 2014

• #7

Thanks all for your suggestions.

@sierrafery I am reading live data from my Lynx diagnostic interface. As for 'going cheap' - I was saving the pennies to get medical aid for the bruises I now have from laying on the door threshold

I will refit the original pedal so at least I am mobile again until I can sort it out.:decision:

 

Last edited: Apr 25, 2014