Vauxhall Insignia 1:8 A18xer 2009 Map sensor connected non run
Register
Results 1 to 12 of 12
  1. #1
    Member
    Join Date
    Dec 2009
    Posts
    46
    Thanks Thanks Given 
    4
    Thanks Thanks Received 
    2
    Thanked in
    2 Posts

    Default Vauxhall Insignia 1:8 A18xer 2009 Map sensor connected non run

    Hi,I’m hoping someone might be able to help as at witts end .
    I have an Insignia 1.8 A18xer engine code 2009 that won’t run unless the map sensor is disconnected.
    When map sensor connected diagnostic using vauxcom ang maxidas shows no faults.
    The engine will start and cut out after a couple of seconds on every attempt to start.
    If I disconnect map sensor it will start after 5 attempts and idle perfectly all day.
    The engine will rev up if throttled gradually.
    When engine is running if I connect sensor the engine cuts out.
    The map sensor has been renewed.
    After many days trying to find fault ,I know why it cuts out but am unable to find the reason behind it.
    It appears that when I connect the map sensor it shuts off the injectors.
    I found this out by spraying brake cleaner/ easy start into air intake and it revs and runs continually whilst continuing to spray into air intake...
    If anyone has any advise or ideas where to look it would be greatly appreciated as I’m at the point of giving up.
    thanks

  2. #2
    DK Veteran

    Join Date
    Jul 2013
    Location
    yorkshire
    Posts
    882
    Thanks Thanks Given 
    79
    Thanks Thanks Received 
    233
    Thanked in
    212 Posts

    Default

    Check earth first. Run a new wire to sensor from battery neg for test. I suspect connection is pulling 5v ref down because of fault in wiring or ecm.

  3. #3
    Member
    Join Date
    Dec 2009
    Posts
    46
    Thanks Thanks Given 
    4
    Thanks Thanks Received 
    2
    Thanked in
    2 Posts

    Default

    Quote Originally Posted by autoden View Post
    Check earth first. Run a new wire to sensor from battery neg for test. I suspect connection is pulling 5v ref down because of fault in wiring or ecm.
    Hi ,thanks ,remove existing earth wire to map sensor and earth out new wire to battery negative ?

  4. #4
    DK Veteran

    Join Date
    Jul 2013
    Location
    yorkshire
    Posts
    882
    Thanks Thanks Given 
    79
    Thanks Thanks Received 
    233
    Thanked in
    212 Posts

    Default

    correct. Then test other sensor for 5v ref

  5. #5
    Member
    Join Date
    Dec 2009
    Posts
    46
    Thanks Thanks Given 
    4
    Thanks Thanks Received 
    2
    Thanked in
    2 Posts

    Default

    Quote Originally Posted by autoden View Post
    correct. Then test other sensor for 5v ref
    Connected alternative earth but still the same ,although it did seem to run slightly longer.
    No fault codes recorded.

  6. #6
    DK Veteran
    Dunker's Avatar
    Join Date
    Oct 2009
    Location
    Yorkshire
    Posts
    1,086
    Thanks Thanks Given 
    195
    Thanks Thanks Received 
    590
    Thanked in
    274 Posts

    Default

    What is live data showing for MAP / Airflow / Temp etc @ ignition on?
    V Series TMS470 / EEPROM data - encryption / decryption, totally pwned.

    IEC 62056-21 - new discussion: sonsivri.to/forum/index.php?topic=60412.0


  7. The Following User Says Thank You to Dunker For This Useful Post:

    Meat-Head (14th July, 2018)

  8. #7
    Member
    Join Date
    Dec 2009
    Posts
    46
    Thanks Thanks Given 
    4
    Thanks Thanks Received 
    2
    Thanked in
    2 Posts

    Default

    Quote Originally Posted by Dunker View Post
    What is live data showing for MAP / Airflow / Temp etc @ ignition on?
    Hi ,I am unable to get live reading but have made some discoveries,not sure wether of any significance ..
    When starting the engine runs for a couple of seconds before stalling.It will continue to do this no matter how many attempt you make.
    After days of trying to get to bottom of problem I noticed if I disconnected map sensor it would start and idle perfectly all day.If I connect map with engine running it will stall immediately.If I disconnect again it will start...
    If I connect map and disconnect intake cam soleniod it will start and run perfectly and can be driven.
    if I connect solenoid when running engine stalls and will not start until disconnected again.
    If I connect solenoid and disconnect intake cam sensor it will start and run perfectly and can be driven.
    If I reconnect sensor when running engine it continues to run
    and will do until I switch off but will not start and run after this unless I disconnect one of the above sensors.
    When all connected there are no fault codes recorded.
    when running the engine sounds sweet as a nut.
    I have spent many hours just to get to this point .
    Any ideas would be appreciated.
    Hope this reads ok
    thanks

  9. #8
    V.I.P. Member
    Meat-Head's Avatar
    Join Date
    Oct 2009
    Location
    Meatheadshire (Between London and Scotland)
    Posts
    31,902
    Thanks Thanks Given 
    8,818
    Thanks Thanks Received 
    6,052
    Thanked in
    4,769 Posts

    Default

    OFF TOPIC:-

    we had a car at www.meat-head-motors.co.uk and we did everting we could to make it run
    we gave up, never got paid, next garage listened to what we said
    put scope on map sensor, found exhaust "blocked solid"

    so post more in dK, use thanks button as mush as possable, gas axe exhaust off

    Was Banned For Being Certifiably Insane and Stupid

  10. The Following User Says Thank You to Meat-Head For This Useful Post:

    mikesworkshop (15th July, 2018)

  11. #9
    Member
    Join Date
    Dec 2009
    Posts
    46
    Thanks Thanks Given 
    4
    Thanks Thanks Received 
    2
    Thanked in
    2 Posts

    Default

    Quote Originally Posted by Meat-Head View Post
    OFF TOPIC:-

    we had a car at www.meat-head-motors.co.uk and we did everting we could to make it run
    we gave up, never got paid, next garage listened to what we said
    put scope on map sensor, found exhaust "blocked solid"

    so post more in dK, use thanks button as mush as possable, gas axe exhaust off
    Thanks for your reply.
    I don’t really no my way round the site as I don’t come on much but when I have help has been invaluable ..
    i did take out lambda but it was the same .
    thanks again

  12. #10
    DK Veteran
    Dunker's Avatar
    Join Date
    Oct 2009
    Location
    Yorkshire
    Posts
    1,086
    Thanks Thanks Given 
    195
    Thanks Thanks Received 
    590
    Thanked in
    274 Posts

    Default

    I just wondered what data was @ ign on but engine not running. Sounds like symptoms of a 1.3 diesel with egr jammed wide open.
    V Series TMS470 / EEPROM data - encryption / decryption, totally pwned.

    IEC 62056-21 - new discussion: sonsivri.to/forum/index.php?topic=60412.0


  13. The Following 2 Users Say Thank You to Dunker For This Useful Post:

    Meat-Head (15th July, 2018), mikesworkshop (15th July, 2018)

  14. #11
    Member
    Join Date
    Dec 2009
    Posts
    46
    Thanks Thanks Given 
    4
    Thanks Thanks Received 
    2
    Thanked in
    2 Posts

    Default

    Quote Originally Posted by Dunker View Post
    I just wondered what data was @ ign on but engine not running. Sounds like symptoms of a 1.3 diesel with egr jammed wide open.
    Has this engine got an egr ,haven’t seen one ?

  15. #12
    V.I.P. Member
    Meat-Head's Avatar
    Join Date
    Oct 2009
    Location
    Meatheadshire (Between London and Scotland)
    Posts
    31,902
    Thanks Thanks Given 
    8,818
    Thanks Thanks Received 
    6,052
    Thanked in
    4,769 Posts

    Default

    Quote Originally Posted by mikesworkshop View Post
    Has this engine got an egr ,haven’t seen one ?
    ADVERTISEMENT:-

    look ok at photos on ebay of engine and try car parts finder and see what is said

    or just ring and waste the time of euro carpets

    see if live data and/or activation

    Was Banned For Being Certifiably Insane and Stupid

 

 

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
This website uses cookies
We use cookies to store session information to facilitate remembering your login information, to allow you to save website preferences, to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.