1.66 Hdi Problems - Peugeot Forums
Peugeot Forums - Peueot - Citroen Community
Home :: Peugeot Forums :: Rules :: Articles :: About Us :: Partner Vendors :: Advertise


Go Back   Peugeot Forums > How To Guides > Engine
PeugeotForums.com is the premier Peugeot All Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 19-05-17, 04:07 PM   #1
Junior Member
 
Join Date: May 2017
Posts: 6
Default 1.66 Hdi Problems

Hi All

Just after some advice I have a Mazda 3 which has a 1.6 hdi engine.

Had many problems was in limp mode a new Fuel pump helped pull it out of limp mode.

The Car has come out of limp mode after a new Fuel pump was fitted when the car refused to start.

But a month later last night the Car stalled just after pulling out from a junction after a long drive back and then would not start but after a few goes the car started up again and started first time this morning , the car has always been hesitant when pulling off but ok when it gets going.

My fear is the injectors could be on their way out as last month a mechanic tested them by putting 4 small contain and filling them with fuel , fitting them on the fuel pipes to see how they was working and to check for blow back on them never smelt fuel in the cab,he stated one was on it's limit (on the way out) , but I am sceptical to believe all they say as it seems good money for them to replace injectors but I could be wrong.

I have read the common rail ones can be trouble.


Any Help would be Great not sure what to do next turning into a money pit


LoL sorry it's a 1.6hdi not 1.66!

Last edited by 3233; 19-05-17 at 04:10 PM.
3233 is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 19-05-17, 05:15 PM   #2
Senior Member
 
Join Date: Oct 2012
Location: falkirk
Posts: 9,083
Default

What you are referring to is a leak off test this does not have anything to do with actual leaks so you would not smell diesel.

It tests how much fuel the injector leaks off back to the tank the more worn they are the more they leak back.

Once the leak back becomes high the fuel pump will struggle to build the minimum pressure required by the ecu to allow running as most is going straight back to the tank.

It only takes 1 bad injector to cause starting issues they may not seem worn once running if the pump is able to cope this may be what actually broke your first pump.

Leaking injectors that cause a smell is a totally different thing they are leaking compression gasses from the copper seal in the head and this would not cause starting issues just a bad smell/chuffing noise.
__________________
assume nothing check everything twice !!
reliable406 is offline   Reply With Quote Quick reply to this message
Old 19-05-17, 07:43 PM   #3
Senior Member
 
jimmymarsbar's Avatar
 
Join Date: Feb 2016
Location: Thackley, West Yorks
Posts: 1,702
Default

I've had injector problems on a 1.6hdi in the past, lots of carbon build up, washers failing.... They're easy enough to get to and replace, and can be swapped like for like with a known working used injector. The leak off test would identify which injector isn't working efficiently, as would live data.

With this engine, the single most important thing to do is keep on top if the oil changes.
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
jimmymarsbar is offline   Reply With Quote Quick reply to this message
 
Old 20-05-17, 10:26 AM   #4
Junior Member
 
Join Date: May 2017
Posts: 6
Thumbs up

Quote:
Originally Posted by jimmymarsbar View Post
I've had injector problems on a 1.6hdi in the past, lots of carbon build up, washers failing.... They're easy enough to get to and replace, and can be swapped like for like with a known working used injector. The leak off test would identify which injector isn't working efficiently, as would live data.

With this engine, the single most important thing to do is keep on top if the oil changes.
Had mechanic tell me it would be 1000 to replace 4 seems way too high maybe trying it on.

If I needed new injectors where would be the best and most economical place to buy them from as the car is not worth that much tbh.

Tried the screwdriver test where you place the screwdriver again the injectors so you can hear them clicking not sure this is the best where to test need advice.

Thanks for the replies interesting that you can replace like for like but read you need to reset the ecu after fitting new injectors? I am right there.

Many Thanks!
3233 is offline   Reply With Quote Quick reply to this message
Old 20-05-17, 02:43 PM   #5
Senior Member
 
Join Date: Oct 2012
Location: falkirk
Posts: 9,083
Default

As i already posted it may only be 1 bad one the 1 with high leakback should be the first one swapped.

Coding is a myth if replaced car will refine itself coding just speeds up the process
__________________
assume nothing check everything twice !!
reliable406 is offline   Reply With Quote Quick reply to this message
Old 20-05-17, 03:15 PM   #6
Senior Member
 
jimmymarsbar's Avatar
 
Join Date: Feb 2016
Location: Thackley, West Yorks
Posts: 1,702
Default

I've fitted injectors with a different part number on the 1.6 and it worked absolutely fine, didn't need coding, engine ran a treat
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
jimmymarsbar is offline   Reply With Quote Quick reply to this message
Old 20-05-17, 05:42 PM   #7
Junior Member
 
Join Date: May 2017
Posts: 6
Default

Hi

Would forscan help be test the injectors to be 100% or are there are other free / low price apps, I have torque pro of my phone.


Would I need any special tools and is it an easy job to fit the new injector.

Many Thanks
3233 is offline   Reply With Quote Quick reply to this message
Old 20-05-17, 06:07 PM   #8
Senior Member
 
jimmymarsbar's Avatar
 
Join Date: Feb 2016
Location: Thackley, West Yorks
Posts: 1,702
Default

Forscan might be able to, however I couldn't say I'm certain.

You can get vxdiag for Mazda, but it's more expensive.

You don't need any special tools, just a bit of patience if they're stuck
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
jimmymarsbar is offline   Reply With Quote Quick reply to this message
Old 20-05-17, 06:21 PM   #9
Junior Member
 
Join Date: May 2017
Posts: 6
Default

Would it be worth buying an injector off a low mileage car off Ebay?
3233 is offline   Reply With Quote Quick reply to this message
Old 20-05-17, 10:05 PM   #10
Senior Member
 
Join Date: Oct 2012
Location: falkirk
Posts: 9,083
Default

Mileage has no real bearing on when an injector is good or bad it is more down to HOW it does this mileage IE how its driven how well its serviced all affect the life of an injector.

My clio DCI needed all 4 injectors replaced at around 150k miles as it was getting hard to start but it was not instant it was 1 then a few months then 2 then a few months later the last one

My other has 180k miles and still originals !

My son bought a partner van with same engine as yours with 350k miles on it still all original 1 owner well serviced
__________________
assume nothing check everything twice !!
reliable406 is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Peugeot Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

Posting Rules
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On



All times are GMT. The time now is 01:39 AM.



Powered by vBulletin® Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.