An oldie diesel in need of help - Fuelly Forums

Click here to see important news regarding the aCar App

Reply
 
Thread Tools Display Modes
 
Old 12-12-2021, 12:01 AM   #1
Registered Member
 
Join Date: Nov 2021
Posts: 10
Country: United States
An oldie diesel in need of help

I recently started getting increased consumption on my 2.0 TDI.
The car has gone through some ECU tuning throughout its years (not by me) and now all of a sudden it has gone from rocking 6/100 to around 7.5.

Anyone has any idea what can be the cause? The sound of the car is the same and it has not lost any power.
__________________

Joseph90 is offline   Reply With Quote
Old 12-12-2021, 02:27 AM   #2
Registered Member
 
Join Date: Aug 2009
Posts: 3,125
Country: United Kingdom
Location: Mid Wales
Does the car have DPF's? Sometimes diesels have to regenerate the DPF's to prevent clogging up, they do this by increasing the load on the engine to generate more heat. This also increases fuel consumption temporarily.

Depending where you live, could be atmospheric i.e. temperature decreasing, or even winter fuel blends.
__________________

__________________


Please subscribe to my YouTube channel
Draigflag is offline   Reply With Quote
Old 12-12-2021, 07:29 AM   #3
Registered Member
 
Join Date: Jun 2017
Posts: 1,048
Country: United Kingdom
Location: Kirkcaldy
Check for a dragging brake.
__________________
2006 Honda Jazz 1.2i-DSi S Vivid Blue Pearl
JockoT is offline   Reply With Quote
Old 12-21-2021, 03:26 AM   #4
Registered Member
 
Join Date: Nov 2021
Posts: 10
Country: United States
The car does indeed have DPF... Which I have never checked to be honest. I think I heard that I can clean that if I drive constantly at around 3k RPM on something like 4th gear?

https://www.youtube.com/watch?v=3F9r...hannel=TunapUK

These guys also have some tips... Do you guys agree?
Joseph90 is offline   Reply With Quote
Old 12-21-2021, 07:43 AM   #5
Registered Member
 
Join Date: Aug 2009
Posts: 3,125
Country: United Kingdom
Location: Mid Wales
Yea I mean a steady run at high revs should burn off the particulates clogging it up, if it even is that, but most cars have built in software to detect this and regen themselves.

You could remove it, but this is illegal in many places. Replacement DPF's are upwards of $1000 so it's better to maintain properly than replace.
__________________


Please subscribe to my YouTube channel
Draigflag is offline   Reply With Quote
Old 01-06-2022, 06:55 PM   #6
Registered Member
 
Join Date: Feb 2017
Posts: 33
Country: United States
Quote:
Originally Posted by Joseph90 View Post
The car does indeed have DPF... Which I have never checked to be honest. I think I heard that I can clean that if I drive constantly at around 3k RPM on something like 4th gear?

https://www.youtube.com/watch?v=3F9r...hannel=TunapUK

These guys also have some tips... Do you guys agree?
A friend mechanic also recommends that trick to keep the DPF from heavy clogging. One old guy brought his truck to the shop for the installation of the suspension and bf goodrich tires plus the alignment. My friend did that cleaning trick afterward.
__________________

visorX is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Fuelly iOS Apps
No Threads to Display.
» Fuelly Android Apps
No Threads to Display.
Powered by vBadvanced CMPS v3.2.3


All times are GMT -8. The time now is 08:40 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2022, vBulletin Solutions, Inc.