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Stacey007

Member Since: 25 Sep 2015
Location: Cheshire
Posts: 3745

Ford Transit 2.2 can the DPF be blanked?

Hello

My mate with a 2.2 transit has issues with the DPF, fault code throwing up and its cleaned, re0set and works for a bit then code up again.

I have a 2.4 Puma and had the DPF blanked off years ago and mapped out, its been great since.

Can the same be done to the 2.2 Transit which I guess is a Similar engine to the 2.2 Puma?

Thanks

Scott

22nd Oct 2024 9:51am

BrickBox

Member Since: 05 Oct 2021
Location: Wales
Posts: 808

2008 Defender 110 Puma 2.4 USW Zermatt Silver

I didn’t think the 2.4 came with a DPF. Do you mean EGR blanked and mapped out? 2008 2.4 110 Utility Station Wagon XS.

22nd Oct 2024 9:55am

Dinnu

Member Since: 24 Dec 2019
Location: Lija
Posts: 3413

2012 Defender 90 Puma 2.2 CSW Santorini Black

As said, EGRs are blanked off (so no exhaust flow back into the intake).
DPFs are gutted out or deleted so the action, albeit illegal on road going cars, allows the exhaust to escape out more freely. 1988 90 Hard Top, 19J Diesel Turbo, Shire Blue - Restoration ongoing
2012 90 CSW, 2.2TDCI, Santorini Black

22nd Oct 2024 10:01am

Stacey007

Member Since: 25 Sep 2015
Location: Cheshire
Posts: 3745

Sorry your both correct the EGR was blanked off

22nd Oct 2024 10:19am

Ianh

Member Since: 17 Sep 2018
Location: Essex
Posts: 1993

If the 2.2 is having DPF issues you can MAP the DPF out, however it will also require the removal of the DPF, else it will block with soot. If you think about it the “Rest of world” Defender 2.2 spec without the DPF had a specific map from LR to run without a DPF.
Im sure there is a transit Map out their for a DPF delete, however remember the MOT requires a visual inspection to see if a DPF is fitted, so a good “Fake “ DPF will need to be fitted in place of the existing DPF.
If you do go down the remove DPF and Map the DPF out route you can also go down the mapping out and blanking EGR route, something you can’t do if the DPF is present.

See this other topic on blacking an EGR on a 2.2 with DPF..
https://www.defender2.net/forum/topic85834.html?highlight=dpf

Porny wrote:
pilsburypie wrote:
I have spoken to ian at IRB about mapping and EGR blanking. He recons it’s not a good idea on the 2.2tdci. Something about DPF and that burning off at a certain temp and the EGR and sensor having a hissy fit….. I didn’t understand, but I did get that the 2.2 isn’t a good candidate for EGR blanking

Good speaking to you earlier....

My view - and some people might disagree - but this is my opinion.

EGR is used as a control structure when a regen fails and shouldn't be blanked. But you can reduce it's activity outside of a regen.

In simple terms, when the ECU strategy decides conditions are correct for an Active Regen, the turbo goes to a fixed angle and EGR is closed. Fuelling is then adjusted to increase the Exhaust Gas Temp/DPf temp - which ramps up to allow a controlled burn to take place.

The reason you get a fixed turbo angle and EGR closed to increase efficiency and control to maintain a suitable temperature and flow to allow the DPF to burn off its soot deposits.

However, if you now suddenly have to slow down (due to traffic on the motorway for example), the ECU software cancels the Active Regen and now wants to bring the EGT (Exhaust Gas Temp)/DPf Temperature back down as quickly as possible - to do this, the turbo becomes fully active and EGR is increased to reduce the burn efficiency and fuelling is backed off. Whilst it is true that temperature would come back down without the use of EGR (dirty air), its all about bringing it down quickly especially if the vehicle comes to a stop.

So there is nothing wrong in software adjusting EGR opening in none regen conditions (and this can be set to zero) - as this just affects the NOx output and can be better for driveability, I would always leave EGR in place when a DPF is present as a safety back up.

In a none regen condition, EGR will be closed full throttle acceleration etc anyway and all you would do is tweak the zero percent open over a larger window. But leave the regen section standard.

So... I wouldn't blank if it was my own vehicle.

RoW 2.2 (and none DPF) and 2.4 Tdci is a different matter.....

With regard to the transit DPF getting blocked. There may be a fault with the DPF differential pressure sensor, the pipes from the sensor to the DPF, the electrical connector to it, or it’s wiring.
The Glow plugs also play a role in regeneration so if he has a poor performing or dead glow plug this can prevent active regens and cause the DPF to block. First thing I would test is glow plug resistance.
So what DTC’s is he getting ?

Ps. If the transit is only doing short low speed journeys it will block, it needs to go on a 30plus minute 60plus MPH journey once or twice every 2 weeks.

22nd Oct 2024 11:04am

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