User Tag List

Thanks Thanks:  0
Likes Likes:  0
Page 1 of 3 123 LastLast
Results 1 to 10 of 22

Thread: No throttle response Cdti 120

  1. #1
    Regular Member Vectra Meldrew's Avatar
    Join Date
    Mar 2010
    Location
    Hertfordshire
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    StatsVehicle Info
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default No throttle response Cdti 120

    Had a problem tonight with spanner light coming on and no throttle response at all. Revs rise to about 1300 but pedal does nothing. Luckily I had the laptop & lead in glovebox so hooked it up and got codes ... P1120 & P1122 Accelerator pedal position sensor 1 and 2 signal incorrect ratio (52) - present.
    I cleared the codes and revs dropped to normal and I was able to drive normally for a couple of miles but the fault has returned and now codes won't clear. I'm thinking this is probably more likely a fault with the throttle body (possibly dodgy soldered joints) than a problem with the switch by the pedal.
    Has anyone had a similar problem?

  2. #2
    Regular Member Critch's Avatar
    Join Date
    Dec 2009
    Location
    wirral
    Post Thanks / Like
    Mentioned
    21 Post(s)
    Tagged
    0 Thread(s)
    StatsVehicle Info
    Post Thanks / Like
    Mentioned
    21 Post(s)
    Tagged
    0 Thread(s)

    Default

    Accelerator pedal should have about 1v at idle and about 4.5 at wide open throttle

  3. #3
    Regular Member Vectra Meldrew's Avatar
    Join Date
    Mar 2010
    Location
    Hertfordshire
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    StatsVehicle Info
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default

    Thanks Critch. Do you mean reading from the pedal switch via a multimeter or from the ecu via diagnostic socket?

  4. #4
    Regular Member Critch's Avatar
    Join Date
    Dec 2009
    Location
    wirral
    Post Thanks / Like
    Mentioned
    21 Post(s)
    Tagged
    0 Thread(s)
    StatsVehicle Info
    Post Thanks / Like
    Mentioned
    21 Post(s)
    Tagged
    0 Thread(s)

    Default

    From the pedal mate. Using a paper clip into back of connector you should find the reading.

    I don't know colours or exact set up

    But you should have a 5v ecu reference wire. A ground and then the signal wire.

    But I also think you can see them values or the values that the ecu thinks its at at least on opcom will also tell you percent value for movement in pedal

  5. #5
    Regular Member Vectra Meldrew's Avatar
    Join Date
    Mar 2010
    Location
    Hertfordshire
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    StatsVehicle Info
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default

    Thanks again Critch, I'll give both of those a go in a little while once I've got the kids off to school. Looks like another day of fault finding for me... oh well at least it's not raining for once!

  6. #6
    Regular Member Vectra Meldrew's Avatar
    Join Date
    Mar 2010
    Location
    Hertfordshire
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    StatsVehicle Info
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default

    Oh joy! Another intermittent electrical problem
    Started up this morning and fault has disappeared again. Didn't bother testing voltage at the pedal as it's working fine at the moment but checked values from the ecu and all seems normal for now. Removed throttle body and circuit board part was full up with oil as others members have found. I've cleaned out all the oil and waiting for everything to dry off before I attempt a re-solder job on the contacts. Not really sure what else I can do until the fault returns though.

  7. #7
    Regular Member Vectra Meldrew's Avatar
    Join Date
    Mar 2010
    Location
    Hertfordshire
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    StatsVehicle Info
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default

    Since cleaning out throttle body, re-soldering contacts, cleaning boost sensor and changing accelerator pedal assembly the car has driven without fault for about 150 miles so fingers crossed, it's fixed now.

  8. #8
    Regular Member alcutler's Avatar
    Join Date
    Nov 2010
    Location
    East Midlands
    Post Thanks / Like
    Mentioned
    6 Post(s)
    Tagged
    0 Thread(s)
    StatsVehicle Info
    Post Thanks / Like
    Mentioned
    6 Post(s)
    Tagged
    0 Thread(s)

    Default

    Well done mate - let's hope you've sorted it - I would have thought it would have reoccurred in 150 miles if it was going to

  9. #9
    Regular Member Vectra Meldrew's Avatar
    Join Date
    Mar 2010
    Location
    Hertfordshire
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    StatsVehicle Info
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default

    Yeah would like to think it's sorted but u never know with these things. I would've cleaned out the throttle body etc at some time anyway, just because it's such a problem area on these. Quite possibly it was the pedal at fault because if you unplug the electrical connector from the pedal it gives exactly the same symptoms I was having. Luckily I had a spare pedal here in my old vec so I just changed it over and it works fine (despite it being being from an auto and a different part number)
    Anyway, now I can concentrate on the the ignition key/switch problem I'm having instead

  10. #10
    Regular Member Vectra Meldrew's Avatar
    Join Date
    Mar 2010
    Location
    Hertfordshire
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    StatsVehicle Info
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default

    I DO NOT F****** BELIEVE IT !!!! ...I actually thought this problem was solved since changing the pedal as I've covered about 1000 miles in the last week and no sign of the fault, then tonight it's back! No response to throttle and idles at 1400rpm with the same 2 fault codes present. I tried switching off and re-starting and.. the ignition switch problem has returned! If I clear the code for ignition switch it starts but still no throttle. I think I maybe I have a mouse in my car, chewing on the canbus wires!!
    I'm seriously starting to hate this car now and I haven't even owned it 3 weeks yet. The only reason I bought it was because I liked the last Vec so much and thought I'd experienced all the common problems they have.

Page 1 of 3 123 LastLast

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Bad throttle response
    By Hodgy in forum Engine & Drivetrain
    Replies: 15
    Last Post: 6th February 2013, 19:21
  2. Bad EGR and no response from the throttle 2,0 DTI
    By ldanieli in forum Engine & Drivetrain
    Replies: 3
    Last Post: 13th February 2012, 19:38
  3. intermittent throttle response
    By helisurf in forum Engine & Drivetrain
    Replies: 11
    Last Post: 21st December 2011, 22:06
  4. Improving Throttle response on CDTI
    By hothatch in forum Vectra C / Signum Car Chat
    Replies: 8
    Last Post: 12th April 2011, 12:56
  5. Throttle response
    By old cruiser in forum Vectra C / Signum Car Chat
    Replies: 11
    Last Post: 21st July 2009, 08:27

Visitors found this page by searching for:

vectra c gas pedal not working

vauxhall insignia 2.0 cdti excellerater pedal

vauxhall astra no throttle response

vectra c spanner light accelerator doesnt work

vectra cdti 120 pedal test work

accelerator pedal ratio vectra

vauxhall vectra no throttle response

why is my 2008 zafira reving high and no accelerator responce

c vectra y22dtr wet weather gas pedal no response

vectra 120 cdti throttle wont work

corsa c no throttle response

saab diesel no throttle response

vauxhall zafira 1.9cdti throttle pedal fault

zafira no throttle

vauxhall zafira no throttle response

vectra. high revs and no throttle response

vectra c no throttle response

zafira a diesel no throttle response

2004 diesel vectra no throttle response

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •