Help with engine fault codes

[Deepsix]

Hi all

I have a 2004 Leon 1.6sx (petrol) which was running great until 2 days ago when I started the car and the traction, EPC and engine light came on.
From VAG-COM I get fault codes:

16407 - Bank 2: Camshaft B (Exhaust): Position Actuator Malfunction
01314 - Engine Control Module
17961 - Barometric / Manifold Pressure Signals: Implausible Correlation

A college cleaned out the throttle body and the MAF reset all error codes and car seemed fine for half a day the all lights on dash on again. (car seems to run fine)
I cannot seem to get an answer to these codes
Anyone got any thoughts on this???

VAG-COM output:

VAG-COM Version: Release 409.1-S


Chassis Type: 1M - Seat Leon
Scan: 01,02,03,08,15,17,19,22,35,46,56

-------------------------------------------------------------------------------
Address 01: Engine
Controller: 036 906 034 DS
Component: MARELLI 4MV 4568
Coding: 00031
Shop #: WSC 06402
VSSZZZ1MZ4R090596 SEZ7Z0D2393365
1 Fault Found:
16407 - Bank 2: Camshaft B (Exhaust): Position Actuator Malfunction
P0023 - 35-10 - - - Intermittent
Readiness: 0000 0000

-------------------------------------------------------------------------------
Address 03: ABS Brakes
Controller: 1C0 907 379 K
Component: ASR FRONT MK60 0103
Coding: 0013313
Shop #: WSC 00001
1 Fault Found:
01314 - Engine Control Module
013 - Check DTC Memory - Intermittent

Run 2

VAG-COM Version: Release 409.1-S


Chassis Type: 1M - Seat Leon
Scan: 01,02,03,08,15,17,19,22,35,46,56

-------------------------------------------------------------------------------
Address 01: Engine
Controller: 036 906 034 DS
Component: MARELLI 4MV 4568
Coding: 00031
Shop #: WSC 06402
VSSZZZ1MZ4R090596 SEZ7Z0D2393365
1 Fault Found:
17961 - Barometric / Manifold Pressure Signals: Implausible Correlation
P1553 - 35-10 - - - Intermittent
Readiness: 1010 0101

-------------------------------------------------------------------------------
Address 03: ABS Brakes
Controller: 1C0 907 379 K
Component: ASR FRONT MK60 0103
Coding: 0013313
Shop #: WSC 00001
1 Fault Found:
01314 - Engine Control Module
013 - Check DTC Memory - Intermittent

 

[snudii]

You say after you deleted the engine fault codes they appear again, right?
Are the fault codes sporadic or? If you run the test again will the same codes appear?

Out of the air I could belive it is the airflow sensor, but sporadic fault should disapear after they get deleted, so I guess theyr active. You tested the DTC's with VAS or ?

Address 03: ABS Brakes
Controller: 1C0 907 379 K
Component: ASR FRONT MK60 0103
Coding: 0013313
Shop #: WSC 00001
1 Fault Found:
01314 - Engine Control Module
013 - Check DTC Memory - Intermittent

If im right this comes from the Right front ABS sensor. Is your Front Hub with Bearing changed? Maybee front hub is not right on place over the abs sensor. Im not sure, I need more information regarding this.

 

[Deepsix]

Hi Thanks for the response

When the faults were cleared the car was used for half a day did maybe 20 mile, the revs died as if it was going to stall, then it picked up again after 2-3 seconds and the dash lights came on.
I spoke to a tech at my local Seat dealer and he pointed me toward a poss bad earth under the scuttle panel, I cleaned this last night and deleted all error codes.
As I went to reverse the car off my drive again revs dropped and all lights came on!!.
Again cleared all faults and took the car for a good test drive (15 miles or so) and no problem, no dash lights!!!! But I am not convinced, My wife is using the car today I will post results this evening

A couple of points I maybe need to mention, I had the cam belts and tensioners changed about 4 weeks ago but I have done about 1500 miles since then without fault
My wife also filled up the tank from empty (Tescos Supermarket) and did about 50 miles before the lights came on, don’t know if bad fuel could cause this, I filled the tank backup with 15 litres of 97ron.

 

[DPJ]

Well I would say

• faulty Map sensor
• Faulty Camshaft Position Actuator

Second item probably connecting with cambelt change. They've done something wrong....

 

[Deepsix]

Where is the camshaft sensor?? if you think the problem was down to the cam belt change do you mean this sensor has been physically damaged or a coincidence, plus I drove the car from Birmingham to Scotland and back a week after the belts were changed with no issue at all?

 

[DPJ]

No, it's probably not the sensor, it could be the actuator itself.

 

[Deepsix]

Oh ok where is the Actuator located, is this something that would have been moved / removed during the belt change?

 

[DPJ]

Not sure on a 1.6, I'd have to check a diagram tonight.

 

[Deepsix]

Ok thanks, i will try to find out from web, if you could have a look and post that would be great


Thanks for your help so far.

 

[DPJ]

Just in case you weren't aware, the pressure sensor referred above isn't the MAF.

 

[Deepsix]

Just aquick up date, got a call from the wife to say car started "hunting" upto 2000rmp then all dash lights came on ARRRGH!!!

 

[DPJ]

The exhaust camshaft is driven off the inlet camshaft by a secondary timing belt. I'm confused, because I don't think there is a position actuator. I'm guessing that the tensioner on the belt has not been set properly. I'd get it checked ASAP.

Sorry I can't be more help.

 

[saturn]

Hi, did you find a solution to this. I have a 1.4 Ibiza sport and have had the exact same problem.
I've done the same as you and reset the faults, but they have come back. Its been in to SEAT and they said it was a sporadic fault caused by the battery going flat at some point.... (not sure if it has, as a just bought the car).

Have had then engine hunting problem once as well...but no lights came on that time. Fault also re-appears after 15-20 miles after having reset it.

Thanks

 

[Deepsix]

Well fingers crossed!!

I tried all kinds of things, in the end i removed the alarm box and opened it up to check for dry joints, joints were all fine, but i noticed a residue on the back of the board, covered the bottom half of it.

I cleaned the entire board with electrical contact cleaner, dried it off, put it back together and since then its been fine, again fingers crossed

 

[saturn]

Hmmm. interesting, so a fault that doesn't relate at all to the faults you were getting?

Where was the alarm box on your car? might be different on the ibiza, not sure where it is. Only one which is obvious is the Engine Control Unit (ecu).

I have pulled the cover off the top of the engine and wiggled the throttle body cable.. sometimes the faults go away. this time not.

ps when you had the throttle body cleaned out, did you have to use the diagnostics to adapt the ecu to the valve control part (just copied this out the manual.... looks like you have to re-calibrate throttle to ecu or something)

Thanks

 

[Deepsix]

OOps sorry wrong thread????

I am really sorry i posted this to the wrong thread!!!

I have had our car from new and it has had odd electrical faults.

The only thing i could put this down to and it was the only thing that changed was.
the day before the fault my wife filled the car uo with fuel!!!

Now after 2 days of testing the car and messing we had used up about a quarter of a tank, so i topped it up at a different petrol station with 99ron and reset the fault codes
and again so far so good.

sorry not much of a solution.
We love this car but had random electrical faults from new, ranging from interior light stopped working then electric windows / central locking / alarm also low rad water beep

Every time the car went back to the dealer got the same "sorry sir no fault found" add this to all the running back and forth to the dealer, its been a nightmare.

Strange thing is after all these repeated faults no parts have ever been changed, car is ok for a while then...... it does something strange again.

 

[Deepsix]

Throttle body

I dont think we reset anything after cleang the throttle body, i will chek with my mate (the VW tech).

The only other thing i was told to try was cleaning the earth points in the engine bay, the important one was in the middle of the scuttle under the cover, it looked ok but cleaned it up anyway.

 

[saturn]

Ok, thanks.
I wanted to have a go at cleaning the Throttle body etc, but didn't want to end up then not being able to run the car.....

Funny thing is, I put tesco 98 unleaded in, and after that, thats when I got all these problems. HAd previously filled up at total and done 350miles. Put tesco fuel and 10miles later I have had lights on ever since. Haven't refueled yet...so will try that.

Let me know what you find out about the throttle body part please.

Had another fault today, relating to possibly maf sensor (if there is one), or throttle pedal, or air intake system. seems pretty general.

I will start by cleaning earths and swopping fuel again. See what happens.

Thanks again for the info!

 

[saturn]

Just a short note.... seem to have possibly fixed the problem.
Loosened all the earth points that I could find and cleaned and lubricated them with a silicone based switch lube. Cleared all faults and so far everything seems to be back to normal.

Thanks for the advice

 

[didsi]

Sorry to bring up an old thread. I am getting

Address 01: Engine
Controller: 036 906 034 DS
Component: MARELLI 4MV 4568
Coding: 00031
Shop #: WSC 06402
VSSZZZ1MZ4R090596 SEZ7Z0D2393365
1 Fault Found:
16407 - Bank 2: Camshaft B (Exhaust): Position Actuator Malfunction
P0023 - 35-10 - - - Intermittent
Readiness: 0000 0000


and


Address 03: ABS Brakes
Controller: 1C0 907 379 K
Component: ASR FRONT MK60 0103
Coding: 0013313
Shop #: WSC 00001
1 Fault Found:
01314 - Engine Control Module
013 - Check DTC Memory - Intermittent



same as the first post. Did anyone find a solid solution to this?
Cheers