Results 1 to 13 of 13

Thread: E500 ASR light and engine dies once warm

  1. #1
    Junior Member
    Join Date
    Sep 2018
    Location
    Finland
    Posts
    4

    E500 ASR light and engine dies once warm

    Hello everyone.
    After a long time of reading this board I finally decided to join.

    The problem with the car is that engine dies once it has warmed up. With cold engine starts good and idles fine but once the engine begins to heat up it starts to idle unstable and backfires a bit. These issues will increase as the temp keeps rising and after 15-20min the engine dies and wont start again untill you have waited it to cool down a bit. Also ASR light in the instrument cluster

    Codes pulled and the only one I`m getting is pin6 code 33 CAN data bus, interrupted.

    Changed:
    Upper wiring harness
    Caps and Rotors
    Sparkplugs
    ETA
    Breather hoses
    Battery

    Checked:
    Module connections (looking good and no visible damage inside E-gas module)
    Battery wires and connection


    Also another separate issue I believe. SRS light not illuminating at anytime and unable to pull codes from pin30. The bulb behind IC is okay.


    Any ideas what to look at next?

    All help appriciated!

  2. #2
    Intl 500E GTG coordinator 195910's Avatar
    Join Date
    Dec 2008
    Posts
    1,657

    Re: E500 ASR light and engine dies once warm

    Step one: Disconnect the MAF and see if it runs. if it doesn't, then reconnect it and disconnect the O2 sensor.

    This is to see if its related to closed loop.

  3. The Following User Says Thank You to 195910 For This Useful Post:

    jhodg5ck (1 Week Ago)

  4. #3
    Junior Member
    Join Date
    Sep 2018
    Location
    Finland
    Posts
    4

    Re: E500 ASR light and engine dies once warm

    Disconnecting MAF or O2 unfortunately did not help.

  5. #4
    Senior Member
    Join Date
    Apr 2015
    Location
    Bath, UK
    Posts
    466

    Re: E500 ASR light and engine dies once warm

    When were the rotors/caps renewed? If they've been on for a while, you might be suffering from the dreaded "damp" distributor syndrome!

  6. #5

    Re: E500 ASR light and engine dies once warm

    This "damp" distributor syndrome has landed many good cars in the salvage yards.
    The other day I saw a beautiful E420. Looked to be in great shape.
    I decided to look behind the insulator caps. The damp insulator syndrome struck again.

    Quote Originally Posted by r44raven View Post
    When were the rotors/caps renewed? If they've been on for a while, you might be suffering from the dreaded "damp" distributor syndrome!
    Last edited by Stevester 500E; 1 Week Ago at 12:27 PM.

  7. The Following User Says Thank You to Stevester 500E For This Useful Post:

    r44raven (1 Week Ago)

  8. #6
    Intl 500E GTG coordinator 195910's Avatar
    Join Date
    Dec 2008
    Posts
    1,657

    Re: E500 ASR light and engine dies once warm

    Quote Originally Posted by Emppu View Post
    Disconnecting MAF or O2 unfortunately did not help.
    OK, so its not a lambda control issue, but heat related.

    Star diagnosis readings? live data?

  9. #7
    .036 Hoonigan™
    E500E Boffin
    gsxr's Avatar
    Join Date
    Dec 2008
    Location
    Boise, ID, USA
    Posts
    21,179

    Re: E500 ASR light and engine dies once warm

    Quote Originally Posted by r44raven View Post
    When were the rotors/caps renewed? If they've been on for a while, you might be suffering from the dreaded "damp" distributor syndrome!
    +1. Backfiring after warmup sounds a lot like the liquid behind the distributor insulators. Search the forum, there are multiple threads on this topic...


  10. #8
    E500E Guru nocfn's Avatar
    Join Date
    Jan 2014
    Location
    Kingwood TX
    Posts
    3,661

    Re: E500 ASR light and engine dies once warm

    I vote a small amount of Florence back there.
    1994 E500
    249/275 - 8F19 or 8F32 or 8320

    1991 560 SEC
    199/268
    2014 E350 Cab 799/264

  11. #9
    Junior Member
    Join Date
    Sep 2018
    Location
    Finland
    Posts
    4

    Re: E500 ASR light and engine dies once warm

    Will double check the distributors and insulators. Caps and rotors were replaced some while ago with bosch and if I recall right the insulators looked clean.

    Unforunately its not easy for me to have acces to star diagnostics

  12. #10
    .036 Hoonigan™
    E500E Boffin
    gsxr's Avatar
    Join Date
    Dec 2008
    Location
    Boise, ID, USA
    Posts
    21,179

    Re: E500 ASR light and engine dies once warm

    Quote Originally Posted by Emppu View Post
    Will double check the distributors and insulators. Caps and rotors were replaced some while ago with bosch and if I recall right the insulators looked clean.
    You need to check the BACK side of the insulators, which requires unbolting the rotor bracket to remove the insulator. The front sides always look clean & dry.


  13. #11
    Junior Member
    Join Date
    Jun 2013
    Location
    Calgary,Canada
    Posts
    24

    Re: E500 ASR light and engine dies once warm

    Hi I have two different cars with similar problems over the years, both had problems with the upper wire harness, both of them the black 4 pin connector for the coolant sensor on the front top the wire insulation was coming of, you have to open up the harness a bit to see it.
    The cars would run for a bit and shut down and when cooled down would start right up again and run til it would show a bit of temp on the gauge.
    Perhaps check that out.

  14. #12
    Junior Member
    Join Date
    Sep 2018
    Location
    Finland
    Posts
    4

    Re: E500 ASR light and engine dies once warm

    The harness has been replaced. I checked the insulators and there were a tiny bit of moisture but cleaning them had no effect on the issue.
    Starting to think it is a fuel related problem since timing lamp shows that it got spark when trying to restart after the engine has shut down. Also tried to pour some fuel right into the intake and it runs for a bit w/ hot engine. Will change the fuel filter and get myself an fuel pressure gauge

  15. The Following 2 Users Say Thank You to Emppu For This Useful Post:

    gsxr (6 Days Ago), Klink (5 Days Ago)

  16. #13
    Intl 500E GTG coordinator 195910's Avatar
    Join Date
    Dec 2008
    Posts
    1,657

    Re: E500 ASR light and engine dies once warm

    The damp insulation issue (at least from my experience) would gradually fade away if the car is driven at a higher rpm for +10km as the dampness starts to dissipate.

    The problem is that contrary to new cars, these M119 LH engines continue to run remarkably well even if something is wrong! at the same time this is the first generation of CAN-BUS systems and don't have advanced diagnostics capability.

    One important diagnostics procedure that 99% of us haven't done is an engine analysis using an engine analyzer (oscilloscope graphical display of each cylinder's ignition/injection patterns ), this is a more advanced diagnosis procedure which can determine weak components and issues that don't trigger fault codes, but requires a real expert

  17. The Following User Says Thank You to 195910 For This Useful Post:

    gsxr (5 Days Ago)

Similar Threads

  1. 1994 E420 engine dies / hard to start
    By benzfiend in forum Troubleshooting and Diagnostics
    Replies: 1
    Last Post: 4 Weeks Ago, 09:23 PM
  2. Cluster Light on; the one left of the check engine light
    By Stevester 500E in forum Off-Topic Discussions
    Replies: 3
    Last Post: 03-14-2017, 12:04 PM
  3. Engine dies when hot, won't re-start until it cools down
    By Modpryor in forum Troubleshooting and Diagnostics
    Replies: 4
    Last Post: 02-15-2017, 04:19 PM
  4. Rough idle, engine misses after warm start
    By nantucketsleigh in forum Troubleshooting and Diagnostics
    Replies: 4
    Last Post: 10-21-2015, 06:37 PM
  5. Engine light
    By bgreene30 in forum M119 Engine
    Replies: 6
    Last Post: 04-24-2012, 06:25 AM

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
  •