Igor_VDM
Jr. Member
Karma: +0/-0
 Offline
Posts: 25
|
 |
« on: August 22, 2013, 08:36:27 AM »
|
|
|
Hello guys,
My name is Igor, I am new here and I need some help. Though I understand a lot about cars, I am far from understanding 20% of what you already understand about ECUs.
I live in Brazil and here the gasoline contains anything between 22 and 30% anhydrous alcohol, so, Audi adapted the cars to run with our very bad, low octane, gasoline/acohol mixture. The only difference I noticed up to now, is that ECU adaptation channel #10 was set to 179, instead of the default 128. Value is locked and can't be changed through VCDS.
My MIL (CEL) light is deactivated. I checked wiring, found no issues. Light never turns on when ignition is turned on, but it turns on during output tests in VCDS. Not really a big issue as I own a fully registered VCDS cable, but I would like to have an operational MIL. Even with the thrown O2 codes, my MIL never lights up.
MIL and emissions testing were not mandatory in Brazil. In fact in my city, they are not performed.
Though I still have a lean code on both O2 sensors, I still have the car set as passed. The codes are visible under engine VCDS module, but no DTCs are shown in OBD-II page.
I have already asked for a bin file to compare to mine, but the 2.4 V6 APS engine is not available in the USA, so I think no one else has it in the forum.
I think it has something to do with emissions testing. Probably done by Audi as there were no requirements for MIL and autotest in Brazil back in 2001. I have already seen other A4s in the same situation here, and I doubt anyone here knows how to disable the MIL.
I already have the 1024kb bin file I extracted from my ECU. And after performing a checksum test, it returned 32 errors. Me7sum was unable to correct one of them. Except for the deactivated light, car runs almost 100% fine (as I still have a small vaccum leak). My cluster also works perfectly, except for the MIL, including the FIS. I had the car for more than one year without getting any codes.
My car is stock and will remain stock, so I would like to have the MIL operating as it should.
If anyone can analyze the file for me and check if my MIL (CEL) was disabled inside the ECU software, please tell me.
Other info:
2001 B5.5 Audi A4 2.4 V6 30v Tiptronic
ECU: ME7.1 3B0907552AD
|
|
|
|
|
Logged
|
|
|
|
Igor_VDM
Jr. Member
Karma: +0/-0
Offline
Posts: 25
|
|
« Reply #1 on: August 27, 2013, 10:36:13 AM »
|
|
|
Hello again,
After changing a brake booster check valve, the adaptation channel #10 returned to 128 (default) by itself after clearing the codes. The check valve seemed ok when testing out of the car, but I already had the new one in hand... I am still waiting for the new TBI gasket to arrive as mine is damaged. Anyway, now car is running almost 100% perfectly and no lean codes were thrown for 4 days.
This brings me again here to ask for help, as the adaptation to use Brazillian gasoline/alcohol mixture was not done in adaptation#10 as I thought it was. So, if I just import a new ECU, I will probably face a lot of issues due to the non-standard fuel used in Brazil. So, it would be better if my own file was corrected.
I tried looking the posts and solve the issue by myself, but I am far from being able to do that.
Does the main flash (1024kb) contain information like VIN, SKC and etc, or all of this keep stored in 95040? Should I post it here?
By the way, I would like to say thanks to Jacks, as he helped me to retrieve my bin.
Can someone help me, please? I am almost sure that someone performed a full emissions delete in my car, and I would like to reverse it. If I disconnect a O2 sensor, the codes are thrown in VCDS engine module, but no DTCs appear in OBDII page, also in the OBDII page the MIL status is always off, even with the sensor disconnected. Car is set as passed no mather how many errors I could force... So I think the issue is indeed inside the ECU software.
If an emissions delete was done, I think it was done by the manufacturer, as there were no autotest requirements in Brazil; besides, even the best technicians here don´t know how to do it.
Regards,
Igor,
|
|
|
|
|
Logged
|
|
|
|
Igor_VDM
Jr. Member
Karma: +0/-0
Offline
Posts: 25
|
|
« Reply #2 on: September 04, 2013, 07:13:01 AM »
|
|
|
Hi again,
Well, ANDR posted an A6 2.4L main eeprom file and I compared it with Tuner Pro and it is exactly the same as mine (though mine is an A4 2.4L). Thanks again ANDR!
Does anybody know if the CEL be deactivated inside the cluster software or inside the 95040 immo software? Or maybe I have a faulty cluster or ECU?
I still think it is a software issue as my car passes the readiness tests, no matter what errors are recorded, besides no DTCs are thrown inside the VCDS OBD2 page and MIL is always set as off in OBD2 page, even with thrown O2 codes in the engine module.
Reminder. CEL turns on during VCDS output tests.
Seems that everybody perform the emissions delete inside the main eeprom. So I am totally lost.
Regards,
Igor,
|
|
|
|
|
Logged
|
|
|
|
|
ddillenger
|
|
« Reply #3 on: September 04, 2013, 09:15:28 AM »
|
|
|
You could try flashing a north American 2.8 file just to see if the engine light comes on. I wouldn't drive like that though.
|
|
|
|
|
Logged
|
Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience!
Email/Google chat:
DDillenger84(at)gmail(dot)com
Email>PM
|
|
|
Igor_VDM
Jr. Member
Karma: +0/-0
Offline
Posts: 25
|
|
« Reply #4 on: September 04, 2013, 10:14:56 AM »
|
|
|
Hello ddillenger,
Thanks for your reply. Sometime ago you mentioned that the CEL could be deactivated inside the ECU software. You meant the 1024kb file, correct? Do you know any other way mine could have been deactivated? Inside 95040 or cluster bins? Adaptation channels?
The file posted here in the forum is exactly as mine, so my issue is probably anything else, as I don´t think both are deactivated. A friend of mine found an A4 2.4 and hopefully he has the same ECU as mine. The owner is traveling, so I will talk to him when he comes back to see if I can read his eeprom (of course, only in the case that his CEL is working...).
Regards,
Thanks again!
Igor,
|
|
|
|
|
Logged
|
|
|
|
|
ddillenger
|
|
« Reply #5 on: September 04, 2013, 10:18:50 AM »
|
|
|
I'm not sure. I know in ESKONF there are bit pairs for the check engine light, but whether these just remove diagnosis (I've never seen CEL diagnosis) or turn it off completely are beyond me.
Is your file 1024kb?
|
|
|
|
|
Logged
|
Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience!
Email/Google chat:
DDillenger84(at)gmail(dot)com
Email>PM
|
|
|
Igor_VDM
Jr. Member
Karma: +0/-0
Offline
Posts: 25
|
|
« Reply #6 on: September 04, 2013, 10:32:38 AM »
|
|
|
Yes it is 1024kb. I have attached it.
Mine is totally deactivated. It never turns on when I turn the ignition on. The only way I ever saw it lit was using VCDS output tests.
As I said before, the MIL appears as off in the OBD2 page and no DTCs are thrown in OBD2 page, even if codes are thrown and can be read in the VCDS engine module. So, I still think the issue is in the ECU, not the cluster. But I am not an expert, so I am not sure.
I think the xdf definition are not accurate for this ECU, or maybe I am not doing the right way...
|
|
|
|
|
Logged
|
|
|
|
Igor_VDM
Jr. Member
Karma: +0/-0
Offline
Posts: 25
|
|
« Reply #7 on: September 05, 2013, 03:32:48 PM »
|
|
|
Hello,
Seems that someone performed an emissions delete in my car...
Things all appear as unsuportted in the OBD2 VCDS page.
|
|
|
|
|
Logged
|
|
|
|
|
ddillenger
|
|
« Reply #8 on: September 05, 2013, 04:08:32 PM »
|
|
|
Hello,
Seems that someone performed an emissions delete in my car...
Things all appear as unsuportted in the OBD2 VCDS page.
Flash this file and report back. |
|
|
|
|
Logged
|
Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience!
Email/Google chat:
DDillenger84(at)gmail(dot)com
Email>PM
|
|
|
Igor_VDM
Jr. Member
Karma: +0/-0
Offline
Posts: 25
|
|
« Reply #9 on: September 05, 2013, 06:18:51 PM »
|
|
|
Hi,
Thanks a lot!
Before trying the flash, I have a few questions.
The Bosch hardware number is different. Should I be able to start the car?
Also, me7check found one error:
Contents of ECUID data table:
- 'HW_MAN004'
Is that a problem?
Thanks again,
Igor,
|
|
|
|
|
Logged
|
|
|
|
|
ddillenger
|
|
« Reply #10 on: September 05, 2013, 06:35:14 PM »
|
|
|
The file is a 2001 Audi A6 2.4 file. It should be compatible with your car, and the codeword block is intact, so all emissions should come back online.
I would flash it, and see what happens.
|
|
|
|
|
Logged
|
Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience!
Email/Google chat:
DDillenger84(at)gmail(dot)com
Email>PM
|
|
|
Igor_VDM
Jr. Member
Karma: +0/-0
Offline
Posts: 25
|
|
« Reply #11 on: September 06, 2013, 06:46:13 AM »
|
|
|
Hello ddilenger,
Thanks!
Well, the good news is that the CEL worked for the first time! Turned the ignition on, the CEL turned on and stayed on until I started the car. The CEL didn't come on with the codes thrown (but I just started the car, didn't drive it)
But several codes were immediatelly thrown in the engine module. They are probably caused by components that are not present... The CEL didn't turn on with the below codes (but I didn't drive the car with the new software - returned to the old "emisssions deleted" one to avoid issues while driving.
Also, now the car was set as "failed or not completed" in the emissions test. (as it should after clearing the codes)
Is it easier to modify the file you sent or my own file? Could you do that for me, please?
Below are the codes, with comments.
6 Faults Found:
18320 - Pressure Sensor for Brake Boost (G294) (does not have auxiliary electrical vaccum pump, never saw a pressure switch)
P1912 - 35-00 - Short to Plus
17841 - Secondary Air Pump Relay (J299) (probably not equipped)
P1433 - 35-00 - Open Circuit
17840 - Secondary Air Injection Solenoid Valve (N112) (probably not equipped)
P1432 - 35-00 - Open Circuit
17530 - Oxygen (Lambda) Sensor Heating; B2 S2 (My A4 only has pre-cat O2 sensors)
P1122 - 35-00 - Open Circuit
17526 - Oxygen (Lambda) Sensor Heating; B1 S2 (My A4 only has pre-cat O2 sensors)
P1118 - 35-00 - Open Circuit
17837 - Circuit for Brake Vacuum Pump (does not have auxiliary electrical vaccum pump)
P1429 - 35-00 - Open Circuit
There's also the one found by ME7check
Contents of ECUID data table:
- 'HW_MAN004'
|
|
|
|
|
Logged
|
|
|
|
|
ddillenger
|
|
« Reply #12 on: September 06, 2013, 08:21:31 AM »
|
|
|
Why do you keep saying there is one found by ME7Check? HW_004 is not an error, it's a characteristic of the flash and irrelevant. Please stop talking about it.
Try this. Tell me if the engine light continues to work, or goes back out.
|
|
|
|
|
Logged
|
Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience!
Email/Google chat:
DDillenger84(at)gmail(dot)com
Email>PM
|
|
|
|
overspeed
|
|
« Reply #13 on: September 06, 2013, 09:15:56 AM »
|
|
|
Hi Igor
I´m from Brazil too (you can call me or send PM in portuguese to make things more clear to us), but your file is OK, this new one you flashed form ddllinger only ligth CEL because there was some missing parts for that file configuration
Put your file back and unplug one injector or MAF and you´ll see the MIL going ON
|
|
|
|
« Last Edit: September 06, 2013, 09:17:47 AM by overspeed »
|
Logged
|
|
|
|
Igor_VDM
Jr. Member
Karma: +0/-0
Offline
Posts: 25
|
|
« Reply #14 on: September 06, 2013, 10:01:58 AM »
|
|
|
Hi Overspeed,
I had already done that test. Pulled MAF, both oxygen sensors, and a couple more and the light would never go on with the original BIN. In fact I drove around two months with lean codes on O2 sensors and the malfunction in circuit code and the light never came on. It wouldn't go on when I switched the ignition on as it should also. Also tried reloading the bin today. No results.
Do you own a 2.4 also? If so, could you double check if your CEL is deactivated or not?
You can PM in portuguese in case it is easier for you also.
Hi ddilenger,
Thanks again. Sorry if I made a dumb question. I didn't think it was supposed to be that way. I apologize for that.
Now, if I turn off an oxygen sensor, it takes sometime, but after a few minutes the CEL goes on. It also lights up when ignition is turned on now, stays on and goes off after engine starts.
I also noticed that the VCDS LED blinks between green and red when scanning the car. It didn't with the old BIN, but I guess that is the way it should be, correct?
I think I am almost solving my issue. I loaded the new file, but still getting a few codes due to non present items. Could you still help me with that? Also, some of the readiness tests are marked as failed or incomplete now, even after driving about 8km. Don't know if that is due to the car not completing the test (yet), or due to still having some items in the ECU that are not physically present.
Regards,
18320 - Pressure Sensor for Brake Boost (G294)
P1912 - 35-00 - Short to Plus
16524 - Oxygen (Lambda) Sensor B1 S2
P0140 - 35-00 - No Activity
16544 - Oxygen (Lambda) Sensor B2 S2
P0160 - 35-00 - No Activity
|
|
|
|
|
Logged
|
|
|
|
|
