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[JamesV6CDX]

Been a while since I used one, but clicking upgrade used to physically destory the chip, game over time.
Ive no experience on them on later cars

I think that’s if you click “internet update”. This was a manual firmware upgrade

Car is back with the garage. Since they’ve coded the injectors it’s undrivable. It’s running on 4 but massively over fuelling and ticking and chucking out smoke

Let’s hope today they can do those adjustments otherwise I don’t know where to turn. I can’t drive it far like that, too much risk of damage with that much fuel going in

Wish I’d left it now. Other than being noisy it was running ok before I took it in!

[Marks DTM Calib]

So what exactly was the fault codes?

Code and suffix (so 4 digits plus 2)

Astra J is full CAN hence there may be hardware difference in the diagnostics comms

[JamesV6CDX]

"P06B-41 Fuel Injection Small Quantity Not Learned - Not Programmed".

[Marks DTM Calib]

"P06B-41 Fuel Injection Small Quantity Not Learned - Not Programmed".

That's not a valid code as its 3 digits and 2 digits 

P062B-41?

[JamesV6CDX]

"P06B-41 Fuel Injection Small Quantity Not Learned - Not Programmed".

That's not a valid code as its 3 digits and 2 digits 

P062B-41?

Sorry mark just checked my photo of the “tool” output - that’s the one

[Broomies Mate]

Quick search;

https://workshop-manuals.com/vauxhall/astra-j/engine/engine_control_and_fuel_system_1.7l_diesel_(lpl_or_lpv)/diagnostic_information_and_procedures/miscellaneous/dtc_p0601_p0606_p060a_p060e_p0610_p061a_p062a_p062b_or_p062f_lpl_or_lpv/

If code persists, replace K20 engine control module.

Is this the problem which caused the initial faiulure??   

[JamesV6CDX]

Quick search;

https://workshop-manuals.com/vauxhall/astra-j/engine/engine_control_and_fuel_system_1.7l_diesel_(lpl_or_lpv)/diagnostic_information_and_procedures/miscellaneous/dtc_p0601_p0606_p060a_p060e_p0610_p061a_p062a_p062b_or_p062f_lpl_or_lpv/

If code persists, replace K20 engine control module.

Is this the problem which caused the initial faiulure??   

The code is there because the injectors were coded but they couldn’t compete the small learning procedure because of a fuel temperature error.

We will see how they get on today

[Marks DTM Calib]

Hmmm, usually the idle learn process requires a minimum stable rail pressure, engine temp (typically at or above 80 degrees C) and fuel temp (30 degrees C rings a bell).

The latter can take a while to achieve, usually needs a hot engine plus some heat soak, if its throwing an issue with this the first thing a competent mech should do is look at the fuel temp live value to see if its not quite upto temperature OR if its a ridiculous reading which hints a fault.

When the learn happens, the ECU will raise the rail pressure to max (a few thousand Bar) and then trim the injection pulses to get optimum idle. The learnt values are also a useful indication of injector condition as they should be fairly similar (its worth asking for them)

[Andy B]

...
 the ECU will raise the rail pressure to max (a few thousand Bar) and  .....

How much? 

[Raeturbo]

...
 the ECU will raise the rail pressure to max (a few thousand Bar) and  .....

How much? 

.     
                     Around 26106 PSI.

[JamesV6CDX]

...
 the ECU will raise the rail pressure to max (a few thousand Bar) and  .....

How much? 

From stuff I've read, on this engine it's 1800bar / 26,106PSI

Anyhow. I also had my suspicions that (due to the fact I'd left it there the night before) they had done it with a cold engine.

So, this time, I took it for a spin and delivered it fully up to temperature.

The learning process worked this time. Not sure if this was a result of me cleaning the temperature sensor plug, or being up to temperature, but either way, it worked 

Car seems to have ceased over fuelling now and is not chucking out smoke.
 
So, we have 4 injectors which we know are correctly coded to the ECU

On the way back from the garage, though, I noticed the car was noisier and more rattly than ever. I think I've identified what the cause of that is, I'm just off out to investigate it and I'll post up for sure if it's what I think it is. Clue - it's not a diesel injector   

[STEMO]

No.....just a diesel. 

[Rangie]

Wow this is a long thread about an Astra , think I would have moved it on & bought something else.

[JamesV6CDX]

Wow this is a long thread about an Astra

Nobody is forced to read it

think I would have moved it on & bought something else.

I don’t like giving up. And I didn’t but the car for what it is / isn’t - I just fancied a challenge. From when it arrived, I think loads of progress has been made, and for me that makes me happy.

I find it interesting, anyway

[STEMO]

Wow this is a long thread about an Astra , think I would have moved it on & bought something else.

Not as long as think of a word that's nothing like the last word and repeat 2 million times