Injector coding

[Viper 69]

Well my 09 welcab HiAce with 1kd diesel had bad injectors so after getting quotes that were expensive I done the job myself when finished went to code them and nothing codes rejected. Many phone later was told only Toyota can code them because my van is a import so contact Toyota to be told they won't touch imports so now what ??

[Jamie Edwards]

are all your options exhausted ??? another motor maybe ???

[Tony Prodigy]

13 hours ago, Viper 69 said:

so after getting quotes that were expensive I done the job myself when finished went to code them and nothing codes rejected.

I've never heard of coding your injectors. That is hilarious, but If that's what needs to be done, then so be it. 

Are the quotes you received from Toyota or did you try an independent ?

I don't see what the big deal is with Toyota not wanting to do it sighting it being an import. That sounds like a whole lot of hog wash. They all come from the same factory, so what does one have to do with the other ??

I think it may be a case of sour grapes that you never took the vehicle to them in the first place, paid the extortionate amount to fix it, and so they want to punish you for it too. Just ring around mate, I'm sure there are places other than the arrogant dealerships that can do it. It's not rocket science for crying out loud. Talk to an injector specialist instead. I'm sure they have the means to fix it. 

[Tony Prodigy]

9 hours ago, Jamie Edwards said:

are all your options exhausted ??? another motor maybe ???

It'd be extreme to have to replace the whole engine due to an injector issue. I'd never entertain that idea. But hey, this is the modern era and anything is possible in this mad world we now live in.

[Jamie Edwards]

before i wrote my reply i did think thats it was odd for toyota to reject it for being an import but it never left my head rofl

[Hiro]

On 6/8/2022 at 3:41 AM, Tony Prodigy said:

I've never heard of coding your injectors. That is hilarious, but If that's what needs to be done, then so be it. 

Common-rail diesel injectors run significantly higher pressures and tighter tolerances than normal petrol ones - "coding" is basically benchmarking the injector to generate a unique performance profile, and then programming that information in to the ECU so that it can fine-tune the fuel delivery/timings for optimal performance and emissions.  Think of the good old days of fine-tuning individual jets within a multi-barrel carby to match the flow characteristics of each intake runner.

 

As to why being an import might trigger issues, this could come down to differences in emissions packages between the importer and importee markets, different ECU programmings, or even physically different injectors.  There may not be any _real_ issues, but a lot of places just wipe their hands of dealing with any imports because they don't want to run the risk of grenading engines due to unknown parameters.

[Tony Prodigy]

5 hours ago, Hiro said:

Common-rail diesel injectors run significantly higher pressures and tighter tolerances than normal petrol ones - "coding" is basically benchmarking the injector to generate a unique performance profile, and then programming that information in to the ECU so that it can fine-tune the fuel delivery/timings for optimal performance and emissions.  Think of the good old days of fine-tuning individual jets within a multi-barrel carby to match the flow characteristics of each intake runner.

 

As to why being an import might trigger issues, this could come down to differences in emissions packages between the importer and importee markets, different ECU programmings, or even physically different injectors.  There may not be any _real_ issues, but a lot of places just wipe their hands of dealing with any imports because they don't want to run the risk of grenading engines due to unknown parameters.

Mate, you are the voice of reason. That makes a whole lot of sense now, but gee the emissions differences certainly throws a spanner in the works.

[Hiro]

On 6/9/2022 at 2:25 PM, Tony Prodigy said:

Mate, you are the voice of reason. That makes a whole lot of sense now, but gee the emissions differences certainly throws a spanner in the works.

A lot of diesel guys hate modern common-rail engines, since everything is so highly strung (not to mention the addition of EGR/DPF etc)

[Tony Prodigy]

16 hours ago, Hiro said:

A lot of diesel guys hate modern common-rail engines, since everything is so highly strung (not to mention the addition of EGR/DPF etc)

Yeah, I don't know if I'd own one long term that's for sure. My company gives us new diesel engine cars every three years or so they're always fresh and trouble trouble free for the time span we have them for. They get dealer serviced at their expense and I never have to dip into my own pocket. It's a great perk that I'm grateful for because it helps save a bit of money not having to lean on the Aurion all the time.

I'm in a 2020 Colorado at the moment, which has been very good, and I suspect the next round of cars will be Hilux turbo diesels.