FI: Desperate
Thread Starter
AudiWorld Junior Member
Joined: Mar 2024
Posts: 5
Likes: 1
FI: Desperate
I have an a6 c6 2010 2.0 with tfsi / bpj engine code. Driven 250,000 km.
Now renewed: single injection nozzle, xenon bulb, fuel low pressure regulator valve.
Checked the engine compartment fuses and the two adjacent relays.
Cleaned off the moss.
Repeatedly blows engine compartment fuse number 4. Controls the ecu. Gives fault codes: p0444, p0033, p0243, p2294.
I think some are "ghost codes".
The engine works gently when accelerating up to 4000rpm, after which the engine goes into fault mode.
When accelerating to the bottom of the throttle, it works up to 3000rpm, after which the engine goes into fault mode.
When the engine goes into failure mode, it "chokes" and no longer accelerates at all.
The automatic transmission works somehow miraculously. Sometimes it changes ok, sometimes it takes a long time before changing to a bigger one, it's not due to acceleration or straining the engine. Kickdown doesn't seem to play anymore, it used to work ok.
I don't want to blindly look for a fault anymore, could you help more knowledgeable people!
Now renewed: single injection nozzle, xenon bulb, fuel low pressure regulator valve.
Checked the engine compartment fuses and the two adjacent relays.
Cleaned off the moss.
Repeatedly blows engine compartment fuse number 4. Controls the ecu. Gives fault codes: p0444, p0033, p0243, p2294.
I think some are "ghost codes".
The engine works gently when accelerating up to 4000rpm, after which the engine goes into fault mode.
When accelerating to the bottom of the throttle, it works up to 3000rpm, after which the engine goes into fault mode.
When the engine goes into failure mode, it "chokes" and no longer accelerates at all.
The automatic transmission works somehow miraculously. Sometimes it changes ok, sometimes it takes a long time before changing to a bigger one, it's not due to acceleration or straining the engine. Kickdown doesn't seem to play anymore, it used to work ok.
I don't want to blindly look for a fault anymore, could you help more knowledgeable people!
AudiWorld Member
Joined: Sep 2018
Posts: 545
Likes: 74
This is hardly a diagnosis, but I know from experience that the relay that supports the ecu an its contacts have to be electrically "pristine."
But, before buying a pile of parts, get an electrical diagram and see if the sensors underneath those codes share a common ground.
But, before buying a pile of parts, get an electrical diagram and see if the sensors underneath those codes share a common ground.
Thread Starter
AudiWorld Junior Member
Joined: Mar 2024
Posts: 5
Likes: 1
Quote
This is hardly a diagnosis, but I know from experience that the relay that supports the ecu an its contacts have to be electrically "pristine."
But, before buying a pile of parts, get an electrical diagram and see if the sensors underneath those codes share a common ground.
But, before buying a pile of parts, get an electrical diagram and see if the sensors underneath those codes share a common ground.
AudiWorld Senior Member
Joined: Jun 2017
Posts: 706
Likes: 83
From: Albuquerque NM
Very strange, Thought I posted where you can get the Wiring diagrams.
Go to the eRwin site, create an account, buy a 1 day subscription. This will allow you download anything you might need. Not just for 1 car, but as many as you need. I got everything I needed for both my wife's A8 and my S6.
Go to the eRwin site, create an account, buy a 1 day subscription. This will allow you download anything you might need. Not just for 1 car, but as many as you need. I got everything I needed for both my wife's A8 and my S6.
Thread Starter
AudiWorld Junior Member
Joined: Mar 2024
Posts: 5
Likes: 1
Very strange, Thought I posted where you can get the Wiring diagrams.
Go to the eRwin site, create an account, buy a 1 day subscription. This will allow you download anything you might need. Not just for 1 car, but as many as you need. I got everything I needed for both my wife's A8 and my S6.
Go to the eRwin site, create an account, buy a 1 day subscription. This will allow you download anything you might need. Not just for 1 car, but as many as you need. I got everything I needed for both my wife's A8 and my S6.
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AudiWorld Senior Member
Joined: Jan 2010
Posts: 1,674
Likes: 17
From: Brighton, MI
Very strange, Thought I posted where you can get the Wiring diagrams.
Go to the eRwin site, create an account, buy a 1 day subscription. This will allow you download anything you might need. Not just for 1 car, but as many as you need. I got everything I needed for both my wife's A8 and my S6.
Go to the eRwin site, create an account, buy a 1 day subscription. This will allow you download anything you might need. Not just for 1 car, but as many as you need. I got everything I needed for both my wife's A8 and my S6.
Tried VIN search and manual search. The only 'tab' on top that shows anything is the "service information' tab. Also tried Firefox (mentioned) browser, same.
What am I doing wrong?
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AudiWorld Senior Member
Joined: Jun 2017
Posts: 706
Likes: 83
From: Albuquerque NM
Yes, it should be the ones that it is showing.
But I would also, not select a category type, and get everything they list. also do this for each of the tabs. The more you can download, the better the value.
My wiring diag file is almost 40 mb
But I would also, not select a category type, and get everything they list. also do this for each of the tabs. The more you can download, the better the value.
My wiring diag file is almost 40 mb