So back in December my car went into limp mode and pulled in turned the car off and on and it was fine again, Done it again in Jan and said i would bring to the dealer. Dealer plugged the car in and found it said the boost controller could not ne reached. All stress tests performed however to the turbo/actuator passed evertime.....so i asked the service manager would it be a dpf problem because it always felt like the car was regenerting when it would happen but they said no way and it hasnt done it until today......when driving i felt the regen happeneing so i went up to 6th gear (as i was always in 6th when the error came on and was doing aroung 100km/h at 2k revs) and low and behold it went into limp mode again..............So what i am wondering is if you dont have the car in 4th gear at around 2k revs when the regen is happening is it normal to go into limp mode?????????

Sunday,06,April,2014,16:39:02:04540
VCDS Version: Release 12.12.0 (x64)

                Address 01: Engine       Labels: 03G-906-018-BMN.clb
Control Module Part Number: 03G 906 018 EL    HW: 03G 906 018 EL
  Component and/or Version: R4 2.0l PPD1.2 G    9953
           Software Coding: 0000072
            Work Shop Code: WSC 00966 941 84634
                      VCID: 73E5D49112A49486991-8026
1 Fault Found:

000665 - Boost Pressure Regulation
               P0299 - 006 - Control Range Not Reached - Intermittent
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 5
                    Fault Frequency: 1
                    Reset counter: 39
                    Mileage: 160822 km
                    Time Indication: 0
                    Date: 2000.00.00
                    Time: 14:25:49

             Freeze Frame:
                    RPM: 2240 /min
                    Torque: 200.0 Nm
                    Speed: 100.0 km/h
                        59.28 %
                    Voltage: 14.35 V
                    Pressure: 1853.1 mbar
                    Pressure: 1448.4 mbar


Readiness: N/A

Google is your best friend in these situations.

 

http://wiki.ross-tech.com/wiki/index.php/16683/P0299/000665

 

I doubt it's DPF related, other than the possibility that the regen is perhaps contributing to the strain on the turbo.

 

16683/P0299/000665 - Boost Pressure Regulation: Control Range Not Reached Possible Symptoms

 

Possible Symptoms:

• Reduced Power Output
• Limp Mode

Possible Causes:

• Hoses/Pipes incorrect connected, disconnected or leaking
• Charger Pressure Control defective
• Turbocharger faulty
• Diverter Valve faulty

Possible Solutions:

• Check Hoses/Pipes to/between Components
• Check / Clean / Replace Charge Pressure Control
• Check Turbocharger
• Check Diverter Valve

Edited 6 April, 201412 yr by silver1011

Google is your best friend in these situations.

http://wiki.ross-tech.com/wiki/index.php/16683/P0299/000665

I doubt it's DPF related, other than the possibility that the regen is perhaps contributing to the strain on the turbo.

16683/P0299/000665 - Boost Pressure Regulation: Control Range Not Reached Possible Symptoms

Possible Symptoms:

• Reduced Power Output
• Limp Mode

Possible Causes:

• Hoses/Pipes incorrect connected, disconnected or leaking
• Charger Pressure Control defective
• Turbocharger faulty
• Diverter Valve faulty

Possible Solutions:

• Check Hoses/Pipes to/between Components
• Check / Clean / Replace Charge Pressure Control
• Check Turbocharger
• Check Diverter Valve

All has been checked but no faults found. It has to be the dpf regeneration because ever since I got it back from the garage 3 months ago when ever I knew the dpf was regenerating I kept it in 4th at 3 revs until it was finished. So I am very confident now that if it is regenerating and I put it in 6th it'll go into limp mode.

I'm. Not sure why it does it tho but........thinking about getting rid of it now and going for a 330d or a 530d

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Probably a duff sensor then.

 

If by shifting into 6th the RPM is dropping below the minimum required to maintain the regen then the regen will cancel.

 

The only reason I can think off why this would result in limp-home mode is if one of the sensors isn't working correctly.

Probably a duff sensor then.

If by shifting into 6th the RPM is dropping below the minimum required to maintain the regen then the regen will cancel.

The only reason I can think off why this would result in limp-home mode is if one of the sensors isn't working correctly.

Yea that sounds logical.....only problem is what friggin sensor.....I've noticed the regens are getting more frequent....like maybe ever 300km/s it does a regen....If I was doing city driving I'd expect it but I'm doing city/country/motorway driving nearly everyday

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Have you ever replaced the G450 pressure sensor? there are so many threads on here about it its not funny.... it will prob throw up all sorts of errors in VCDS if its not working as the car cant work out how much soot is in the DPF... 

 

Failed on mine 2 months after buying it second hand, replaced in under 30 mins and sorted with a forced regen and a drive.. been ok for over 2 years now..

 

look there to start if you havent already!

Have you ever replaced the G450 pressure sensor? there are so many threads on here about it its not funny.... it will prob throw up all sorts of errors in VCDS if its not working as the car cant work out how much soot is in the DPF...

Failed on mine 2 months after buying it second hand, replaced in under 30 mins and sorted with a forced regen and a drive.. been ok for over 2 years now..

look there to start if you havent already!

I thought it might be that but every time I plug into the vag com it's clear of errors so I stumped

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Edited 7 April, 201412 yr by Obsolete01

The sensor could still be faulty, just not giving the car the correct readings.

 

My dad needed a new one on his Fabia 1.4TDi and I replaced the one in my now sold PD140 Superb. That's two out of two cars in our family that needed the sensor replacing. Mine was obvious as it had a fault code, my dad just had the DPF light coming on more often than it should. His car thought the DPF was full, in reality it was fine.

Where about is it located and is it easy to adapt it to the car....I have the vcds myself but wouldn't be to sure on how to set up that side if it.....

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On a PD170 octy like yours the G450 sensor is located just to the top left of the engine cover.. lift the cover off and you will see what looks like a bit of folded tin foil bolted to a bracket on the engine.. its literally held on with a torx screw and the pipes attached by a few clips.. less than half hour to change, once done plug VCDS in, look for the DPF section in VCDS (cant for the life of me remember where this is but Rosstech website should point you in the right direction) and go for a drive.. you will see the soot levels go down and eventually it will all be fine.. did mine 2 years ago and been fine since