fault codes p2002 & p2263

[Goughy]

focus mk2.5 2.0 tdci 2008 help anyone only had the car a week eml came on car was spluttering at low revs so had the codes read and it came up maf sensor so un pluged it and it  drove much better, just replaced it cleared code and test drove it but still spluttered at low revs un pluged maf and test drove it all was well so took part back and got a replacement, fitted and test drove still spluttering at low revs re read the codes but now codes p2002 & p2263 p2002 i think is dpf and p2263 has somthing to do with turbo actuator these faults were not there befor maf change any ideas would be appreciated and any how to to get them sorted many thanks

[Goughy]

any help?

 

[Tdci-Peter]

On 01/10/2016 at 4:07 PM, Goughy said:

now codes p2002 & p2263 p2002 i think is dpf and p2263 has somthing to do with turbo actuator these faults were not there befor maf change

Hi,

"P2263 Turbocharger/Super Charge Boost System Performance"

"P2002 diesel particulate filter efficiency below threshold"

Both of these codes will rely on the air flow through the engine. The Turbo needs the correct flow to perform, and the DP from the DPF will vary greatly with air flow. So if the new MAF is wrongly calibrated, it could just possibly cause both of these.

The more usual causes for P2263 include split air hoses, or turbo actuator failures (vacuum pipe disconnected sometimes if it is vacuum operated, electrical faults if it is motor driven).

Typical causes for P2002 are DPF missing/modified or blocked. Or hoses from DPF to the DP sensor, or the DP sensor or its connections & wiring.

But I think I would put the old MAF back first.

Peter.
 

[Goughy]

On 03/10/2016 at 1:27 PM, Tdci-Peter said:

Hi,

"P2263 Turbocharger/Super Charge Boost System Performance"

"P2002 diesel particulate filter efficiency below threshold"

Both of these codes will rely on the air flow through the engine. The Turbo needs the correct flow to perform, and the DP from the DPF will vary greatly with air flow. So if the new MAF is wrongly calibrated, it could just possibly cause both of these.

The more usual causes for P2263 include split air hoses, or turbo actuator failures (vacuum pipe disconnected sometimes if it is vacuum operated, electrical faults if it is motor driven).

Typical causes for P2002 are DPF missing/modified or blocked. Or hoses from DPF to the DP sensor, or the DP sensor or its connections & wiring.

But I think I would put the old MAF back first.

Peter.
 

thanks for reply iv had a good look around the car its had a new turbo, removed the egr but it was clean, the dpf looks like its been removed as it has new bolts and exhaust past around joints, took the new maf back and had it replaced still doing the same the turbo and dpf must of been done by previus owner i swapped the pipes around on the turbo boost valve thinking they might of put them on the wrong way, and result :) went to work thismorning drove ok but didnt seem quite right, come home and light came back on and limp mode, just replaced the fuel filter air filter still coming up with p2002 im wondering if previus owner has gutted the dpf and not mapped it out???? its hard to explaine but it seems to be pulsing boost pipes are pulsing at about 2.5-3000 revs HELP 

[Tdci-Peter]

2 hours ago, Goughy said:

still coming up with p2002 im wondering if previus owner has gutted the dpf and not mapped it out?

If I understand right, then swapping the pipes on the Turbo boost control valve has cured the P2263 DTC, but the DPF one remains.

It is true that P2002 is said to be linked with low DP, and so linked with missing or holed DPF insert. But is can also be caused by a faulty DP sensor, or, quite commonly, by leaking or misplaced hoses between the DPF & the DP sensor.

I am assuming this was a private sale, with no dealer warranty? I think selling a car that should have a DPF. without one, would be a quite bad breach of trading standards, or something, if it was a dealer sale.

I suggest finding & checking the hoses to the DP sensor. If they are ok (and the right way round!), I would use Forscan to read the DP sensor over the diagnostic connector, to confirm low readings. Then blow into the hp hose (not too hard, 10kPa is about 1m head of water), and see if it gives a reading.

Forscan costs only £15 if you have a Windows laptop, or a bit more for iOS or Android versions. Ask here if you want more info.

If it is due to missing DPF insert, I can think of 3 options:

Get a new DPF!

Get it mapped out by a specialist.

Get someone who can cut & weld metal to fabricate some obstruction in the DPF housing to give just enough back pressure to make the pcm (engine computer) think there is a DPF.

I don't quite get the pulsing pipes bit. Are these the vacuum control pipes to the turbo? If so, some pulsing could be normal as the engine modulates the position of the actuator.

Or are they the big air hoses from turbo to inlet manifold? I don't know what might cause pulsating pressure there, though engine vibration is a possible.

 

[Goughy]

19 hours ago, Tdci-Peter said:

If I understand right, then swapping the pipes on the Turbo boost control valve has cured the P2263 DTC, but the DPF one remains.

It is true that P2002 is said to be linked with low DP, and so linked with missing or holed DPF insert. But is can also be caused by a faulty DP sensor, or, quite commonly, by leaking or misplaced hoses between the DPF & the DP sensor.

I am assuming this was a private sale, with no dealer warranty? I think selling a car that should have a DPF. without one, would be a quite bad breach of trading standards, or something, if it was a dealer sale.

I suggest finding & checking the hoses to the DP sensor. If they are ok (and the right way round!), I would use Forscan to read the DP sensor over the diagnostic connector, to confirm low readings. Then blow into the hp hose (not too hard, 10kPa is about 1m head of water), and see if it gives a reading.

Forscan costs only £15 if you have a Windows laptop, or a bit more for iOS or Android versions. Ask here if you want more info.

If it is due to missing DPF insert, I can think of 3 options:

Get a new DPF!

Get it mapped out by a specialist.

Get someone who can cut & weld metal to fabricate some obstruction in the DPF housing to give just enough back pressure to make the pcm (engine computer) think there is a DPF.

I don't quite get the pulsing pipes bit. Are these the vacuum control pipes to the turbo? If so, some pulsing could be normal as the engine modulates the position of the actuator.

Or are they the big air hoses from turbo to inlet manifold? I don't know what might cause pulsating pressure there, though engine vibration is a possible.

 

ok so fitted the old maf sensor back and no fault code  for maf just the p2002 code still so will be taking the maff back yes its the two large pipes going to the inlet manifold!!! going to take it to a garage and get it diagnosed properly there is a company by me that dose the terraclean they have said they will do a free diagnostic then quote from the results no charge untill i want the work done, think this is the best way, i have checked the pipes to the dpf they seem to be ok but how will i know if they are the right way around? also i am getting small air bubbles in the fuel line is this normal was getting big bubbles befor changing the fuel filter but now they are verry small, one last thing shoukld the fuel system be presurised ie if i remove the fuel cap and push the flap inside the filler pipe it hisses as if its pressurisd!!! yes it was a private sale well it was a swap for my 06 reg civic thought i had a good deal so hope i can get it sorted without breaking the bank

[Tdci-Peter]

4 hours ago, Goughy said:

how will i know if they are the right way around? also i am getting small air bubbles in the fuel line is this normal was getting big bubbles befor changing the fuel filter but now they are verry small, one last thing shoukld the fuel system be presurised

If they are easy to get at, and look interchangeable, just try. A DP sensor will not be harmed by reverse pressure within its normal operating range. With a way to read the sensor, like Forscan, you could see if the reading changed. The higher reading will be the correct way round. If the sensor is marked + or H or HP on one port, then this would be the upstream one (engine end of DPF).

I expect that some small bubbles are common, especially if not moving much. It is difficult to get all the air out. If there is a steady stream of bubbles flowing towards the pump, then that does suggest a leak.

The fuel tank is vented by a valve on top of the tank. There is a dust filter on it, but this rarely blocks. I expect the valve is sprung closed, and requires a bit of pressure to open in either direction, so a small pressure or depression in the tank would be normal. If the hiss is loud, with audible creaks or sounds of movement from the tank, then the vent valve may be blocked.

A free diagnostic & quote sounds good, but be careful to check what they say before agreeing to anything. If in doubt, ask here, maybe someone will spot any obvious duff info.

[Goughy]

20 hours ago, Tdci-Peter said:

If they are easy to get at, and look interchangeable, just try. A DP sensor will not be harmed by reverse pressure within its normal operating range. With a way to read the sensor, like Forscan, you could see if the reading changed. The higher reading will be the correct way round. If the sensor is marked + or H or HP on one port, then this would be the upstream one (engine end of DPF).

I expect that some small bubbles are common, especially if not moving much. It is difficult to get all the air out. If there is a steady stream of bubbles flowing towards the pump, then that does suggest a leak.

The fuel tank is vented by a valve on top of the tank. There is a dust filter on it, but this rarely blocks. I expect the valve is sprung closed, and requires a bit of pressure to open in either direction, so a small pressure or depression in the tank would be normal. If the hiss is loud, with audible creaks or sounds of movement from the tank, then the vent valve may be blocked.

A free diagnostic & quote sounds good, but be careful to check what they say before agreeing to anything. If in doubt, ask here, maybe someone will spot any obvious duff info.

thanks for relys tdci-peter checked the pipes today one is slightly larger diameter than the other so cant go on the wrong way, i did notice though when i pulled the pipe off engine side it was crusty!! and hard when i crushed it with my fingers a lot of white crusty powder came out not sure what that is? thought ie was blocked and would be sorted but unfortunatly not, ive got a mechanic comming out to have a look at it on saturday with a roer diagnostic so will get back to you with the outcome 

 

[Goughy]

ok so had the codes read with a snapon reader codes that came up were p2002 so he did a re jen of the dpf code cleared p0033 turbo/supercharger bypass valve was told its eather the turbo boost solenoid or turbo actuator my question is can the turbo actuator be removed for cleaning/replacement without removing the turbo if so is their a how to anywhere thanks 

ps if i unplug the boost solenoid or remove the pipe that goes down to the turbo car runs ok but with not much boost :/