Golden solution to 2.0TDCI Limp mode 2002-2006?

[Stevelien]

Is there anyone who has the golden solution for the 2.0 TDCI limp mode during load changes. I read that this often occurs with 2.0TDCI but never read a solution for this. All suspicious items have been replaced including pump and injectors and sensors. My 2.0TDCI also suffers from this, especially when shifting down and then back on the gas, overtaking and U-turns, for example. No fault codes, low power and it is away after a restart. To the touch it feels like the engine is choking on something... it never happens during gentle acceleration. Engine is almost brand new, chain, turbo, hoses, everything. Pump pressure is excellent. I read on a Belgian forum that this was due to tuning on a Mondeo mk3 2.0TDCI, but I don't suspect that my Transit has been tuned except for the factory boost function. I also read that a few had changed the electronic accelerator pedal with no result.

[knobby1]

Is there anyone who has the golden solution for the 2.0 TDCI limp mode during load changes. I read that this often occurs with 2.0TDCI but never read a solution for this. All suspicious items have been replaced including pump and injectors and sensors. My 2.0TDCI also suffers from this, especially when shifting down and then back on the gas, overtaking and U-turns, for example. No fault codes, low power and it is away after a restart. To the touch it feels like the engine is choking on something... it never happens during gentle acceleration. Engine is almost brand new, chain, turbo, hoses, everything. Pump pressure is excellent. I read on a Belgian forum that this was due to tuning on a Mondeo mk3 2.0TDCI, but I don't suspect that my Transit has been tuned except for the factory boost function. I also read that a few had changed the electronic accelerator pedal with no result.

You mention you van has gone into "limp mode"...but then you say you have no fault codes....if it has actually gone into limp mode, there "will" be fault codes stored. What code reader was used..?? Mk6 is not OBD-II compliant so most of the newer readers won't work.

Lord Knobrot

[DanMK7uk]

Incorrectly timed fuel pump is what it sounds like.

[Altransit]

Incorrectly timed fuel pump is what it sounds like.

Is a TDCi fuel pump timed?

[DanMK7uk]

I should read better !!

He had only mentioned it was TDCI x 4 times

Dont get old!

[andz327]

I should read better !!

He had only mentioned it was TDCI x 4 times

Dont get old!

Wint disagree with that

Sent from my SM-G990B using Tapatalk

[ned]

The golden solution to fixing the mk6 tdci is very simple, buy a different van, that’s how I fixed mine

[Stevelien]

Is there anyone who has the golden solution for the 2.0 TDCI limp mode during load changes. I read that this often occurs with 2.0TDCI but never read a solution for this. All suspicious items have been replaced including pump and injectors and sensors. My 2.0TDCI also suffers from this, especially when shifting down and then back on the gas, overtaking and U-turns, for example. No fault codes, low power and it is away after a restart. To the touch it feels like the engine is choking on something... it never happens during gentle acceleration. Engine is almost brand new, chain, turbo, hoses, everything. Pump pressure is excellent. I read on a Belgian forum that this was due to tuning on a Mondeo mk3 2.0TDCI, but I don't suspect that my Transit has been tuned except for the factory boost function. I also read that a few had changed the electronic accelerator pedal with no result.

You mention you van has gone into "limp mode"...but then you say you have no fault codes....if it has actually gone into limp mode, there "will" be fault codes stored. What code reader was used..?? Mk6 is not OBD-II compliant so most of the newer readers won't work.

Lord Knobrot

Yes indeed, forscan gives code P0251, I have seen that coming by before after limp mode (but I get another OBD not working indeed on Transit).

But I have already checked all the things in this error code, I have a pump test report with values ​​that are more than good at all rpm's. It also fell into this limp mode with my previous pump, so I replaced this pump preventively with injectors, filter, sensors and all lines checked and flushed. It remains a mystery. The DPF particulate filter has been switched off once and written away from the ECU, perhaps this has something to do with it, it has more power, a higher flow now that the ECU control cannot handle and adjusts, I'm just mentioning something. But it happens at lower speeds around 2500 rpm as I indicated, when I shift from first to second gear at the bottom of the rev range and give a lot of gas. Or from 5 to 4 when climbing. I see multiple posts with this problem with the 2.0tdci (Jaguars X type/Mondeos). That technical service bulletin 46/2005 describes it well but doesn't really provide a solution other than the standard things that I've already replaced or checked.

[Stevelien]

Today, 5 times city drive when limp mode came up. I see a relation with the turbo boost getting in at 1500/2000 rpm's, then it's often going into limp mode. I can als force this happen., shifting down and accelarate in the second or third gear. So I gonna concentrate at the boost and vacuum pipes and the actuator. I also do a Mr. Muscle clean of the turbo vanes when it's getting dry in the Netherlands coming days. Any advice further welcome...

[knobby1]

Is there anyone who has the golden solution for the 2.0 TDCI limp mode during load changes. I read that this often occurs with 2.0TDCI but never read a solution for this. All suspicious items have been replaced including pump and injectors and sensors. My 2.0TDCI also suffers from this, especially when shifting down and then back on the gas, overtaking and U-turns, for example. No fault codes, low power and it is away after a restart. To the touch it feels like the engine is choking on something... it never happens during gentle acceleration. Engine is almost brand new, chain, turbo, hoses, everything. Pump pressure is excellent. I read on a Belgian forum that this was due to tuning on a Mondeo mk3 2.0TDCI, but I don't suspect that my Transit has been tuned except for the factory boost function. I also read that a few had changed the electronic accelerator pedal with no result.

You mention you van has gone into "limp mode"...but then you say you have no fault codes....if it has actually gone into limp mode, there "will" be fault codes stored. What code reader was used..?? Mk6 is not OBD-II compliant so most of the newer readers won't work.

Lord Knobrot

Yes indeed, forscan gives code P0251, I have seen that coming by before after limp mode (but I get another OBD not working indeed on Transit).

But I have already checked all the things in this error code, I have a pump test report with values ​​that are more than good at all rpm's. It also fell into this limp mode with my previous pump, so I replaced this pump preventively with injectors, filter, sensors and all lines checked and flushed. It remains a mystery. The DPF particulate filter has been switched off once and written away from the ECU, perhaps this has something to do with it, it has more power, a higher flow now that the ECU control cannot handle and adjusts, I'm just mentioning something. But it happens at lower speeds around 2500 rpm as I indicated, when I shift from first to second gear at the bottom of the rev range and give a lot of gas. Or from 5 to 4 when climbing. I see multiple posts with this problem with the 2.0tdci (Jaguars X type/Mondeos). That technical service bulletin 46/2005 describes it well but doesn't really provide a solution other than the standard things that I've already replaced or checked.

You need to pull the fuel filter, cut it open to see if there are any metal particles in it.

You mentioned DPF...Mk6 Euro-3 TDCi Transits don't have a DPF...so how it was "turned off and writted away from the ECU" is a bit of a mystery. DPF's weren't officially introduced into Transits until Sept 26th 2011 build date when Euro-5 was introduced. Can you show us this "DPF"..??

http://www.catcar.info/ford/?lang=en&l= ... Y0NzA3Misw

Lord Knobrot

[Stevelien]

Hi mr. Lord Knobrot,

This European Transit is a EURO 4 2.0TDCI with originally a dpf equipped. See enclosed Catcar info (20), the dutch vehicle register and it's seen underneath the car that the filter and pipes has been cut off and the holes are welded shut by hand. One of the first European cars in december 2003 and anticipating to the later Euro 5 mandatory dpf norm. Because of the many problems with the first line dpf's they are often disabled and that's also registered in the Dutch vehicle registration register. I have to pay in the Netherlands after the dismanling a particulate matter allowance which I do and many other owner of cut away dpf cars. So no doubt the dpf is cut and written away from this car.
The pump was preventively replaced 2 months ago (no particles) by a tested reconditioned pump. The filter was also replaced and has been in for 2 months. So I assume that this pump functions just like the first original when the engine also often went into Limp mode.
So I/we keep on thinking and searching what the limp mode causes...

[ned]

2003 2.0L tdci is euro 3 not euro 4.

Anyway there a bloody nightmare you’ll be chasing the fault for years, the only thing I can say to check is the wiring loom from the injectors ect down to the fuel pump, it runs behind the manifold iirc and can rub through the wiring causing an short in the wire.

[wojciech]

Don't believe in assurances that the injectors are good and the pump is good. Check them yourself.

For the injectors, do a fuel return test (in Polish we call it a flow test). This test tells you almost everything about the injector match, and especially whether the injector valves are efficient (new). Basically, only the original Delphi valves work properly. There are a lot of replacements on the market, usually they are junk.

If this test is positive for the injectors, connect a good tester and check the rail pressure while driving, especially during hard acceleration. Is the rail pressure consistent with the one set by the PCM.
There can be a hundred or more reasons for the P0251 error to appear. This is a favorite Mk6 tdci error.

Check the suction strainer in the fuel tank and whether the tank aeration is working properly (whether negative pressure is created there while driving).

[Stevelien]

2003 2.0L tdci is euro 3 not euro 4.

Anyway there a bloody nightmare you’ll be chasing the fault for years, the only thing I can say to check is the wiring loom from the injectors ect down to the fuel pump, it runs behind the manifold iirc and can rub through the wiring causing an short in the wire.

Unfurtanely, partnr. from my car is 5C1J5H221B1A which is really a genuine Ford particulate filter without regenation function….and also Dutch technical law registration does not lie, see also the former enclosed picture…so this car has a first made particulate filter and is in the EU an Euro 4 car. I have checked this part number in other EU countries and it is one of the first basic particulate filters without regeneration. Perhaps it is filled with carbon now. But thanks for your advice.

[Stevelien]

Don't believe in assurances that the injectors are good and the pump is good. Check them yourself.

For the injectors, do a fuel return test (in Polish we call it a flow test). This test tells you almost everything about the injector match, and especially whether the injector valves are efficient (new). Basically, only the original Delphi valves work properly. There are a lot of replacements on the market, usually they are junk.

If this test is positive for the injectors, connect a good tester and check the rail pressure while driving, especially during hard acceleration. Is the rail pressure consistent with the one set by the PCM.
There can be a hundred or more reasons for the P0251 error to appear. This is a favorite Mk6 tdci error.

Check the suction strainer in the fuel tank and whether the tank aeration is working properly (whether negative pressure is created there while driving).

Thanks, original Delphi replacements injector parts has been placed with a tested pump from Poland with report, I checked your other suggestions…