§15 Transit Connect 1.6 TDCI P2598 code

[Rick4]

Hi all!
I have a '15 Transit Connect with an 1.6 TDCI engine, all ok, it's a near brand new van with 76K miles in the clock, but 2 weeks ago began a small issue.
If i start it morning, 20-25°C ambient temp, and drive only 500 meters, once revving over 2000 rpm, i get fault code P2598, and then the van stuck in limp mode, i lost 30% of power, bump a "check engine" amber colored light to my face.
After that i restart engine, (on the road, in-the- fly) everything's works fine, error code goes away. If i start the car, but do nor drive, stay at place, wait 8-10 minutes at idling, and the temp gauge shows 70 °C, all ok, under this temp get error codes.
Firstly replaced the temp sensor, checked turbo actuator, all ok, replaced vacuum routing solenoid under turbo, nothing changed, replaced turbo actuator sensor, all was ok, problem persist, new parts don't cure my van.
Choked with my mouth the vacuum actuator with a rubber hose, all ok, it can stay same position, if i close hose hole, checked all, but do not find any cracked vacuum hose, or anything issue under hood.
Very very strange behavior, if i drive only one mile, the engine can small warm up, if i stay under 2000 rpm, i can't get error code. Over 2000 rpm i get, but only if engine cold. If i get error code before it, simply restart it, all problems gone, works good without any issue until i arrive at home, after 500-800 miles of driving, and 10-15 restarting i can't get codes, only if the engine is cold.

What can i do in this case? I can't found noting. Thanks for helping.

[Rick4]

Anybody???

[Rick4]

Anybody???

Succesfully fixed.
Back of engine bolt on EGR valve. That valve moving membrane was torn, so i screwed a caterpillar bolt into a vacuum hose pipe, totally close that vacuum line, push pipe to membrane back. EGR valve blanking is a favorite method on diesel cars, i do it with that method. After that, my van works good over 8 months. Today i get a very low power again, but never revert to good, if my van warmed up, so it's a different issue. I get an orange service MIL light, so i googled a typical 1.6 TDI faults, finally i found a cracked/ melted vacuum hoses around engine's oil filter housing, i replaced that with a 4mm inside diameter fuel supply hoses, and all ok, it was totally eliminated..

IMG_20220905_213945.jpg

IMG_20220905_213952.jpg

[Altransit]

Good result, thanks for posting back with the solution

[Wor.fr]

Anybody???

Succesfully fixed.
Back of engine bolt on EGR valve. That valve moving membrane was torn, so i screwed a caterpillar bolt into a vacuum hose pipe, totally close that vacuum line, push pipe to membrane back. EGR valve blanking is a favorite method on diesel cars, i do it with that method. After that, my van works good over 8 months. Today i get a very low power again, but never revert to good, if my van warmed up, so it's a different issue. I get an orange service MIL light, so i googled a typical 1.6 TDI faults, finally i found a cracked/ melted vacuum hoses around engine's oil filter housing, i replaced that with a 4mm inside diameter fuel supply hoses, and all ok, it was totally eliminated..

IMG_20220905_213945.jpg

IMG_20220905_213952.jpg

Hi, i have the same problem with me c-max 2012 1.6 tdci. Code P2598.

I checked all the hoses, didnt find anything. Tried new map and maf sensor. Didnt change anything. Put complete new turbo, didnt change anything...

Could you show me what you did for the EGR? I tried it with a screw in the tube of the EGR, but stays the same problem, what did you do for the 'push pipe to membrane back'?

Thank you very much. Been busy for months allready with this.

[metalworker0]

he hasn't been back here since 2024

i have no idea what he is showing or talking about, and maybe its totally unrelated your problem. start a new thread

all the best.mark