D5 (2005 on) - Volvo S6 D5 136kw- 185HP 2007 - Cold start, rough idle, smok

jabuka · Dec 6th, 2022, 08:53

Hello everybody,

I've Volvo S60 2007 D5 Euro4 136kw-185HP that is having problems with cold start, white smoke and rough idle, looks like misfire.
Everything this gone after few minutes after engine warms and works fine.

This happens just only first start up in cold, every other startup after that is normal.
The engine starts right up, no lag or struggling.

This problem doesn't occur at spring and summer time when the weather is warm, only when it gets cold.

There are no Check Engine light or any error codes showing in Volvo VIDA diagnostic. Cars was connected to VIDA when warm and when cold and there are any error codes, the software says everything is fine, the engine says otherwise.

The car does not lose coolant, does not consume oil.
There are no problems with power, the engine pulls without any problems.

There are modifications done on this D5 not by me but by the previous owners.
DPF filter is removed physically and in software, EGR is disabled in software.
Car has a new map. Information that I have everything is done in VDASH.
https://d5t5.com/

All 5 injectors have been tested twice and they work as they should. In VIDA
the parameters show everything as it should be, when the motor is cold and when it is hot.
Vacuum has been tested and there are no leaks, engine mounts have been replaced with new ones LEMFÖRDER, all 5.

Glow plugs have been replaced with new ones NGK and fuel filter.

Every information will be good, to know is it fixable, worth fixing or car is for scrap and parts.

Here is video
https://files.fm/f/8hbkg7xeg

Simmy · Dec 6th, 2022, 17:12

looks like over fuelling. was the remap done live when engine was hot get it re mapped or just live with it. did you get the correct glow plug there is more than one type/voltage.

Dec 6th, 2022, 08:53	#1
jabuka New Member Last Online: Dec 6th, 2022 13:45 Join Date: Dec 2022 Location: Zagreb	Volvo S6 D5 136kw- 185HP 2007 - Cold start, rough idle, smok Hello everybody, I've Volvo S60 2007 D5 Euro4 136kw-185HP that is having problems with cold start, white smoke and rough idle, looks like misfire. Everything this gone after few minutes after engine warms and works fine. This happens just only first start up in cold, every other startup after that is normal. The engine starts right up, no lag or struggling. This problem doesn't occur at spring and summer time when the weather is warm, only when it gets cold. There are no Check Engine light or any error codes showing in Volvo VIDA diagnostic. Cars was connected to VIDA when warm and when cold and there are any error codes, the software says everything is fine, the engine says otherwise. The car does not lose coolant, does not consume oil. There are no problems with power, the engine pulls without any problems. There are modifications done on this D5 not by me but by the previous owners. DPF filter is removed physically and in software, EGR is disabled in software. Car has a new map. Information that I have everything is done in VDASH. https://d5t5.com/ All 5 injectors have been tested twice and they work as they should. In VIDA the parameters show everything as it should be, when the motor is cold and when it is hot. Vacuum has been tested and there are no leaks, engine mounts have been replaced with new ones LEMFÖRDER, all 5. Glow plugs have been replaced with new ones NGK and fuel filter. Every information will be good, to know is it fixable, worth fixing or car is for scrap and parts. Here is video https://files.fm/f/8hbkg7xeg Last edited by jabuka; Dec 6th, 2022 at 08:57.

Dec 6th, 2022, 17:12	#2
Simmy Premier Member Last Online: May 12th, 2024 12:32 Join Date: Mar 2017 Location: Manchester	looks like over fuelling. was the remap done live when engine was hot get it re mapped or just live with it. did you get the correct glow plug there is more than one type/voltage.

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