dragon187
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« Reply #15 on: March 16, 2020, 02:55:05 AM »
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Today evening i will look if I can find some better drawing.
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Jim_Coupe
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« Reply #16 on: March 16, 2020, 10:12:29 AM »
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I was back in my garage today and the progress so far is this:
I did a boot mode flash with MPPS 13.. I loaded my file that i have had with working engine.. I connected my ECU and the problem was gone for a few seconds.. I could hear the E-Throttle come to life and the fuel pump primed... Then i left the key in the car for a while just in case. Turned the ign 10min later.. And the ECU was lost again..
Did the same procedure again.. Boot flashed software.. connected ECU.. And again i could hear the fuelpump and the E-gas.. But this time only for 2 seconds or something. Then the fans started to turn.
The fans start as a failsafe mode if no coolant temp is active i have heard.. or the ECU is gone.. I can still communicate with most Modules in VCDS but not the ECU.. Well the ECU responds but not completly.. its not possible to read any measblocks or fault codes.. and no VAG number shows in the dialog..
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E85oholic
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dragon187
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« Reply #17 on: March 16, 2020, 10:15:50 AM »
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Than Flash ori software.
Are you sure your checksum is ok?
I know if checksum is bad at this can ecu you can only Start engine one time.
Or if writing not finished error. -> vcds fault code
Use with Mpps full write.
After first flashing check fault codes on ecu
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« Last Edit: March 16, 2020, 10:19:15 AM by dragon187 »
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Jim_Coupe
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« Reply #18 on: March 16, 2020, 10:36:28 AM »
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You have a point there.. maybe some thing with the checksum is bad.. Im currently use mpps in flashmode: Me7.x.x 1Mb eprom. Not sure what full MPPS write is.. it was many years now since i did this..
And i think i use to make checksum with ECM titanium.. MPPS cant do scheksums here.. I can also use my KESS if thats better
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« Last Edit: March 16, 2020, 10:38:37 AM by Jim_Coupe »
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E85oholic
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Jim_Coupe
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« Reply #20 on: March 16, 2020, 12:34:20 PM »
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ahh thanks man.. I did a checksum correction on the file with ECM titanium.. And flashed the ECU.. Same this time aswell... Turned the ignition and exactly after 2 seconds ECU dies and fans comes on ... Im right now thinking about wire the ECU directly to the 12V.. But first im gonna check those drawings u posted.  |
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E85oholic
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Jim_Coupe
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« Reply #21 on: March 16, 2020, 04:33:51 PM »
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Im almost now sure the immo file is corrupt or something.. Followed the 12V+ and its in order.. Thanks to the new drawings posted. ECU get 12V on pin3 so that route is now checked..
So here i am.. ECU lives 2 seconds after reflash then fans starts.. Cluster issue? Crash Mode? Power module? im clueless..
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« Last Edit: March 16, 2020, 05:05:59 PM by Jim_Coupe »
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E85oholic
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Kompiesto
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« Reply #22 on: March 17, 2020, 03:16:39 AM »
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If fan's starts - ecu not response. If Ecu immo locked - fans should be off and You can connect to ecu by vcds and You should saw immo error in dtc's. Try connect ecu on table. If ecu works normal on table You have something wrong in harness. I think ecu could be damaged. You must check ecu power lines inside - if ecu dead after 2 sec on table. Check resistance between +12V and GND in ecu. Ecu takes about 0,5A.
I have good 032HJ ecu with 032gp software.
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Jim_Coupe
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« Reply #23 on: March 17, 2020, 06:07:11 AM »
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Thanks for that.. yes.. I always get contact with my ECUs even if immo is damaged.. But when fans starts it gives me the feeling that something is shorted to ground. I can hook up the ECU on the bech and se if it lives with VCDS there.. Do i need access to CAN bus pins when doing this or does VCDS use K-Line.. My test harness needs to be updated in that case hm... And Is there need for ignition pin to get it to respond on this ECU or just power..
I´ll give it a try.
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E85oholic
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Jim_Coupe
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« Reply #24 on: March 17, 2020, 08:16:47 AM »
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I can connect to the ECU on the board same as in the car but i cant read any faulst due to com error.. that might be the CAN bus..
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E85oholic
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Kompiesto
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« Reply #25 on: March 17, 2020, 08:26:00 AM »
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You can read dtc only by can bus pins, vcds or elm327 works. You write stock file in boot? Checksums ok? MPPS13 not calculate checksum
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« Last Edit: March 17, 2020, 08:45:53 AM by Kompiesto »
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Jim_Coupe
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« Reply #26 on: March 17, 2020, 11:33:47 AM »
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Yes i wrote stock file in boot.. I use to wrie with kess.. but since i dont get contact with ECU i write in boot.. the stock file should work i think.. i did checksum with ECM titanium. I get contact but cant read DTC´s or Measblocks.. I only see ECU numbers  I have two ECU´s same with both. Here is my stock file and immo.. If someone could check them. |
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« Last Edit: March 17, 2020, 11:44:24 AM by Jim_Coupe »
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E85oholic
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Kompiesto
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« Reply #27 on: March 17, 2020, 03:22:02 PM »
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Try do full reflash eep+mpc+flash. If You se only numbers, software is damaged. I look on Yours immo file when i will be after work.
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Jim_Coupe
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« Reply #28 on: March 19, 2020, 01:22:07 PM »
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Try do full reflash eep+mpc+flash. If You se only numbers, software is damaged. I look on Yours immo file when i will be after work.
Ok... I have and MPPS13 and a Kess v2.. thats it.. I have managed to get it into bott mode and flashed it.. Not familiar with eep and mpc.. youmean eeprom and main program? I´ll give it a try.. this is so damn typical.. Gonna start the car after 2 years.. then this shite... im seriously considering going "Ignitron".. |
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« Last Edit: March 19, 2020, 01:47:05 PM by Jim_Coupe »
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E85oholic
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Kompiesto
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« Reply #29 on: March 21, 2020, 12:51:02 AM »
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The fastest way will be change ecu to find what damaged |
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