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Need Help! Tons of DTC!

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Old 06-15-2009, 08:16 PM
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Default Need Help! Tons of DTC!

Hello guys
I have a 1996 A4 2.8L Quattro
I all of a sudden get a check engine light and I pull the code and got the following.

VAG-COM Version: Release 409.1-US

Control Module Part Number: 8D0 906 266 B
Component and/or Version: 2,8l V6/2V MPI OBD2 D01
Software Coding: 01201
Work Shop Code: WSC 06315
6 Faults Found:
16540 - Oxygen (Lambda) Sensor B2 S2: Malfunction in Circuit
P0156 - 92-00 - Unknown Error Elaboration
17658 - Fuel Level Too Low
P1250 - 68-00
16687 - Cylinder 3 Misfire Detected
P0303 - 69-00
16688 - Cylinder 4 Misfire Detected
P0304 - 68-00 - Cylinder 1
16689 - Cylinder 5 Misfire Detected
P0305 - 93-00 - Unknown Error Elaboration
16684 - Random/Multiple Cylinder Misfire Detected
P0300 - 69-00


It is like every cylinder is misfiring!!! I don't don't think all my spark plugs go dead all of a sudden!
Any help? please!
I have no check engine light for the past 1 yr, and all of a sudden all of them pops out! and it returns now even if I reset them! Please help!
Old 06-16-2009, 04:07 AM
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Clear them out, drive the car, see which ones return.
Old 06-16-2009, 11:28 PM
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Hello, I reset the codes 3 times in the past 1 week.
And they all come back but sometimes with additional or different cylinder misfired.
Any ideas?

Originally Posted by Nate (ETKA+Scumbag)
Clear them out, drive the car, see which ones return.
Old 06-17-2009, 07:49 AM
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Have you replaced your plugs and wires yet? That is rather strange. You might have a bad coil or something.
Old 06-17-2009, 08:42 AM
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Possibly the ignition coil.

I have heard of these cracking and breaking down on some of the 12 valve cars.

There's a lot of heat there,if you replace it make sure you put some heat sink compound under it.

http://www.autohausaz.com/search/pro...gnition%20Coil
Old 06-17-2009, 11:55 AM
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Default Coil or fuel related?

I do got a code saying FUEL TOO LOW.
Can it be related to a fuel problem?
Or it is related to spark (ignition) problem?

I thought of sparks and wires, but then it start to be like all cylinders is misfiring. (so far only 1 & 6 haven't misfire) so I don't think all wires or spark plugs go back the same time.

But I worry about the FUEL TOO LOW. Can it be fuel injectors? fuel pump?

The coil is expensive!

Originally Posted by AudiMick
Possibly the ignition coil.

I have heard of these cracking and breaking down on some of the 12 valve cars.

There's a lot of heat there,if you replace it make sure you put some heat sink compound under it.

http://www.autohausaz.com/search/pro...gnition%20Coil
Old 06-18-2009, 04:07 AM
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I think that code comes up when fuel is low in the tank.

Fill it with gas and it should go away. (unless the sender is bad)
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