Hi All.
Back in may i had Injector 1 Fail.
This was replaced with the same part number 9802448680.
The injector code was: A5GHHG
This was replaced with: B3HJJJ (used).
The car seemed to drive fine, then i heard a small tapping noise occaisionally, so checked on an Autel MK808BT scanner what the error maybe,. As it happened a headlamp bulb was out so had numerous other random errors pop up - which cleared with the replacement of the bulb.
I reprogrammed the injector with the new code, then felt the engine feeling very slightly wobbly. Tapping noise was still there.
I tried to initiate a reporgramming of the injector, but it doesnt seem to do anything, the count is still at 0 - the others show as 203.
How do i get it to reporgarmme?
Also is it nessasary to update the injector code if everything is running fine?
Thanks
New injector
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Re: New injector
This thread shows a screenshot of the reprogrammiing procedure, viewtopic.php?t=66620
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Re: New injector
Hi Thanks for your response.shtu wrote: 14 Jul 2024, 21:32 This thread shows a screenshot of the reprogrammiing procedure, viewtopic.php?t=66620
Unfortunately i dont have the diagbox tool. I use an Autel one.
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Re: New injector
If a replacement injector comes with a new code then that should be used. Leaving the figure in from the previous injector will cause it to misfuel leading to poor performance, rough running, higher fuel consumption and poorer exhaust emissions.
Where are you situated? There may be someone nearby with a Diagbox who can help. Alternatively have a look in the engine ECU (sometimes called injection) for the injector coding procedure. I don't know the Autel hierarchy of models but I would hope that a Bluetooth model (which I think yours is) would have such a section.
One final thought about the Autel. How old is it? How up to date is the data in it?
Where are you situated? There may be someone nearby with a Diagbox who can help. Alternatively have a look in the engine ECU (sometimes called injection) for the injector coding procedure. I don't know the Autel hierarchy of models but I would hope that a Bluetooth model (which I think yours is) would have such a section.
One final thought about the Autel. How old is it? How up to date is the data in it?
As I get older I think a lot about the hereafter - I go into a room and then wonder what I'm here after.
Inside every old person is a young person wondering what the hell happened.
"Trying is the first step towards failure" ~ Homer J Simpson
Inside every old person is a young person wondering what the hell happened.
"Trying is the first step towards failure" ~ Homer J Simpson
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Re: New injector
Thanks for getting back to me.Paul-R wrote: 15 Jul 2024, 16:18 If a replacement injector comes with a new code then that should be used. Leaving the figure in from the previous injector will cause it to misfuel leading to poor performance, rough running, higher fuel consumption and poorer exhaust emissions.
Where are you situated? There may be someone nearby with a Diagbox who can help. Alternatively have a look in the engine ECU (sometimes called injection) for the injector coding procedure. I don't know the Autel hierarchy of models but I would hope that a Bluetooth model (which I think yours is) would have such a section.
One final thought about the Autel. How old is it? How up to date is the data in it?
I thought as much (needs coding). I did manage to do the coding, the main issue now is programming.
The Autel is fully up-to-date.
I did find the programming functions which tell you that its triggered and you need to drive the vehicle between 1600 and 2600 rpm and to lower speed / rpm to not use any pedals.
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Re: New injector
What do you mean by programming as opposed to coding? Or were you confused by me using the term coding?
The screenshot shows that injector 1 needs programming/coding with the new code. Are you saying that it's now been done?
The screenshot shows that injector 1 needs programming/coding with the new code. Are you saying that it's now been done?
As I get older I think a lot about the hereafter - I go into a room and then wonder what I'm here after.
Inside every old person is a young person wondering what the hell happened.
"Trying is the first step towards failure" ~ Homer J Simpson
Inside every old person is a young person wondering what the hell happened.
"Trying is the first step towards failure" ~ Homer J Simpson
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- Joined: 26 Feb 2023, 10:13
Re: New injector
In the autel, it seems there are 3 steps to replacing an injector.Paul-R wrote: 15 Jul 2024, 16:56 What do you mean by programming as opposed to coding? Or were you confused by me using the term coding?
The screenshot shows that injector 1 needs programming/coding with the new code. Are you saying that it's now been done?
1. Physical replacement
2. Coding the injector in with the 6 digit code.
3. Letting the car programme the injector it self.
1 and 2 are done. Number 3 wont trigger.
Thanks
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Re: New injector
3 will happen in it's own sweet time, it appears to be quite a fussy process, eg the engine has to be fully hot, the road not too bumpy, etc. The screenshot I posted the other day spells out the drive-cycle procedure that is supposed to set it off, but honestly I wouldn't worry about it unless there's a significant driveability problem, or the injector is clacking like a castanet.CrazeUK wrote: 15 Jul 2024, 17:00 In the autel, it seems there are 3 steps to replacing an injector.
1. Physical replacement
2. Coding the injector in with the 6 digit code.
3. Letting the car programme the injector it self.
1 and 2 are done. Number 3 wont trigger.
Edit - read back better - are you sure it's the same injector that's noisy? I had to do one. Then another.

On my 110k+, 13 year old, the originals have only triggered that a couple of hundred times, so it's not a major part of the setup.
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Re: New injector
shtu wrote: 24 Jul 2024, 16:243 will happen in it's own sweet time, it appears to be quite a fussy process, eg the engine has to be fully hot, the road not too bumpy, etc. The screenshot I posted the other day spells out the drive-cycle procedure that is supposed to set it off, but honestly I wouldn't worry about it unless there's a significant driveability problem, or the injector is clacking like a castanet.CrazeUK wrote: 15 Jul 2024, 17:00 In the autel, it seems there are 3 steps to replacing an injector.
1. Physical replacement
2. Coding the injector in with the 6 digit code.
3. Letting the car programme the injector it self.
1 and 2 are done. Number 3 wont trigger.
Edit - read back better - are you sure it's the same injector that's noisy? I had to do one. Then another.The fact it's a used injector may be an issue - not everyone is entirely scrupulously honest when selling used parts. You can get exchange with a warranty for about £90 a go.
On my 110k+, 13 year old, the originals have only triggered that a couple of hundred times, so it's not a major part of the setup.
Thanks for your response. I have given up the idea of reprogramming (even testing it for now), although i have been on a few long runs with the car.
To be honest, when it was i nstalled, the car seemed to feel fine. I then thought maybe i should reporgramme it.
Having checked again, i dont think its the injector making the tapping noise, i think it maybe a belt tensioner (a little silver part that rocks back and forth).
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Re: New injector
Is it possible that the noise might have been residual air in the pipes working its way through?
As I get older I think a lot about the hereafter - I go into a room and then wonder what I'm here after.
Inside every old person is a young person wondering what the hell happened.
"Trying is the first step towards failure" ~ Homer J Simpson
Inside every old person is a young person wondering what the hell happened.
"Trying is the first step towards failure" ~ Homer J Simpson
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- Donor 2023
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Re: New injector
That's very unlikely. Bear in mind the commonrail runs at several thousand PSI so any air instantly becomes a a tiny volume. Once the injectors fire, there's no air left.
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Re: New injector
I remember that when I changed an injector on our 308 it took about 10 minutes or so stop running roughly.
As I get older I think a lot about the hereafter - I go into a room and then wonder what I'm here after.
Inside every old person is a young person wondering what the hell happened.
"Trying is the first step towards failure" ~ Homer J Simpson
Inside every old person is a young person wondering what the hell happened.
"Trying is the first step towards failure" ~ Homer J Simpson