Go Back   The 75 and ZT Owners Club Forums > The 75 and ZT Owners Club Forums > Technical Help Forum
Register FAQ Image Gallery Members List Calendar Mark Forums Read
Notices

Reply
 
Thread Tools Display Modes
Old 4th January 2019, 12:15   #1
Neil1
I really should get out more.......
 
MG ZT-T CDTI Auto

Join Date: Feb 2014
Location: Newton Abbot
Posts: 2,624
Thanks: 1,342
Thanked 518 Times in 425 Posts
Default Help Needed, Smoking on Acceleration.

I know this has been covered before but I don't know what to do anymore.

My car is the MG CDTI with the 160 remap.

Mileage is 141,256 miles.

On either blipping the throttle or sticking your foot down not too heavily but hopefully you get what I mean, I get white/grey smoke and it's noticeable in the rear view mirror.

List of things done;

Viton rings have been replaced.
I do have the EGR bypass kit fitted.
I have a genuine Rover Cat fitted, (it did have a de-cat pipe but the MOT people failed it for that last year)

It runs smoothly, no loss of power.

Talking to Matt yesterday who used to own the car before me, he said it has always smoked.
But this year the MOT people are not going to like it doing that and it will mean a fail.

Do I start changing the Maf or injectors?
Neil1 is offline   Reply With Quote
Old 4th January 2019, 12:29   #2
daznkel
Posted a thing or two
 
04 MG ZT+ 190 XPG & 99 (T) Dealer Launch 75 V6 Connie Auto

Join Date: Oct 2012
Location: Plymouth
Posts: 1,080
Thanks: 615
Thanked 456 Times in 309 Posts
Default

Neil buy some Forte injector cleaner and a fuel filter.

Remove the old filter and pour the diesel back into the tank. Fill the new filter up with the Forte and refit.

Turn the key to pos 2 and allow the pumps to prime. Then crank the car allow it to run for 10-15 seconds then switch off.

Leave the car overnight, come out in the morning, start her up and take it for a good old "Italian Tune Up" down the A38 and back.

That should do the trick!
__________________
Click HERE To Be Added To The South West Members Location Map

Upgrades/Mods so far:
Custom Angel Eye DRL's, MG7 Rear lights, Custom Door Cards, MGR Plates, Red Alcantara Seats, Black Oak Dash, Powerflex bushes, Plenum Spy Mod, Rear Light Seals, 5000K HID Kit, Navall 3 DD, Blue LED Conversion, Custom badges, Union badges, Flip key. Working on more!

[SIGPIC][/SIGPIC]
daznkel is offline   Reply With Quote
Old 4th January 2019, 12:45   #3
Neil1
I really should get out more.......
 
MG ZT-T CDTI Auto

Join Date: Feb 2014
Location: Newton Abbot
Posts: 2,624
Thanks: 1,342
Thanked 518 Times in 425 Posts
Default

Quote:
Originally Posted by daznkel View Post
Neil buy some Forte injector cleaner and a fuel filter.

Remove the old filter and pour the diesel back into the tank. Fill the new filter up with the Forte and refit.

Turn the key to pos 2 and allow the pumps to prime. Then crank the car allow it to run for 10-15 seconds then switch off.

Leave the car overnight, come out in the morning, start her up and take it for a good old "Italian Tune Up" down the A38 and back.

That should do the trick!
Thank you Daren, I will do that.

Update;

Fuel filter ordered.
I have some Liqui Moly Purge which is unopened so I presume that will be good enough.

Last edited by Neil1; 4th January 2019 at 14:24.. Reason: updated post
Neil1 is offline   Reply With Quote
Old 4th January 2019, 16:19   #4
Richard1973
Loves to post
 
Rover 75 Saloon CDTi

Join Date: Aug 2012
Location: Mansfield
Posts: 287
Thanks: 18
Thanked 69 Times in 52 Posts
Default

Is the maf plugged in? Mine is unplugged and smokes a little bit with a quick blip or floor from idle but doesn't when I plug my goosed maf back in.
PCV filter is the other thing to check
Richard1973 is offline   Reply With Quote
Old 4th January 2019, 17:48   #5
Avulon
This is my second home
 
1.8t Tourer

Join Date: Oct 2011
Location: Tanelorn
Posts: 4,830
Thanks: 956
Thanked 1,148 Times in 916 Posts
Default

Another question: is the engine getting fully up to temperature?
__________________
Need a T4 ?: T4 Owners Map thanks to Stevestrat ( use at your own risk)

Where?:
https://en.wikipedia.org/wiki/Tanelorn
Mods/Retrofits:

PCV vortex 'filter'; bluetooth; inline thermostat; reversing sensors; plenum spyhole ; headlamp washers ; Diy mp3 player replacing CD multichanger; FBH with remote; Headlamp washers; black/chrome front grille, rear blind; Xenon projectors
To do:
puddle lights; 2 Din cd/nav to fit; boot release button
Avulon is offline   Reply With Quote
Old 4th January 2019, 18:51   #6
Neil1
I really should get out more.......
 
MG ZT-T CDTI Auto

Join Date: Feb 2014
Location: Newton Abbot
Posts: 2,624
Thanks: 1,342
Thanked 518 Times in 425 Posts
Default

Quote:
Originally Posted by Richard1973 View Post
Is the maf plugged in? Mine is unplugged and smokes a little bit with a quick blip or floor from idle but doesn't when I plug my goosed maf back in.
PCV filter is the other thing to check
Maf is plugged in, I have never ran with it unplugged.

PCV filter - I have the BMW replacement, the plastic unit.


Quote:
Originally Posted by Avulon View Post
Another question: is the engine getting fully up to temperature?
Yes it is as I have the Renault 5 thermostat in the top hose.
Neil1 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

Forum Jump


All times are GMT. The time now is 09:04.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright © 2006-2023, The Rover 75 & MG ZT Owners Club Ltd