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Td5 Injector coding


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Sorry to bring up this old chestnut- particularly as I am intruding from the Disco forum.

Despite searching I cannot find an answer.

Put simply I am try to change an injector in a 2001 Td5-NNN Ecu. Green tops

The present injector stamped NGGBG. Nanocom shows this as NG GB 3-G-A

The new injector is stamped BEGFH. Nanocom showed this as BE GF 4H*

So I clear the 3 boxes- Yes?

In the first box I enter BE ?

In the second box I enter GF ?

What do I enter in the third box. Do I enter just one digit and does Nanocom fill in the spaces?

Tony

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If it helps, here is some info that Ian (Porny) sent me a while ago when I asked a similar question.

The fith code digit on the injector top is replaced with a number as follows: -

For early ECU (MSB*****) and black top injectors:

A = 0 or 3

B = 1

C = 2

For later green NNN ECU's and green top injectors:

E = 1

F = 2

G = 3

H = 4

J = 5

K = 6

L = 7

M = 8 or 0

The number is entered in the third box.

(I'm still not sure what the other two digits in the third box mean but after reading it back, I got similar to you - XX*)

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crwoody, thanks. Fun enough it was your post back in Jan that caused me to seek help on this forum.

But I still have trouble in fully understanding.

Are we saying, that in my case, green top injector, that I enter BE- then GF-then enter just 4 in the third box.

Bearing in mind that the injector stamp is BEGFH

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"Are we saying, that in my case, green top injector, that I enter BE- then GF-then enter just 4 in the third box."

Yes, from what I can gather this is correct, having said that, I've just been and checked mine again and having first saved the existing settings file - in case if cock-ups, I changed the settings for two of the injectors, (still on the black tops for now,) the two I changed both ended with C (=2.)

On the original read settings they both showed 2-F-C in the third box, I deleted the "-F-C" bits just leaving "2", hit "write settings" and then "read settings" again and it came hack as "2-F-C" just as originally, then I deleted the "2-F-C" again and put in "C" as in the actual code - write then re-read and its back to the original 2-F-C again.

It's worth noting that the current NanoCom firmware version is 2.05 (the one I'm now using) and looking at the release notes for it, it says (amongst other things): -

"-Wrong correspondence of the 5th digit of the injectors codes of the euro 2 vehicle"

Maybe a firmware upgrade would be in order if you haven't already?

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Right, I would really like to stay with this example. Can you recall the code actually stamped on this injector

- the one ending 2-F-C.

And yes I have v 2.05.

As a matter of interest, I have been searching the internet for months to understand all this.

I have yet to receive a reply from anyone who has managed to use Nanocom to install a new injector.

Maybe you are the first! If so- Nanocom would like to hear from you. They will/can not answer this question.

Tony

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Hi Tony, the actual codes of the two injectors I tried changing are - NCNMC and NCNFC.

Incidently, when I changed the second one and put in a "C", I inadvertantly put in a lower case "c", when I read it back, I got a completely different code in the third box then? (I dont remember the actual value.)

I've just been looking at the "NanoCom Diagnostic Function of the TD5 Engine.pdf" and come across this: -

"The TD5 ecu has the READ SETTING and CLEAR SETTING to read and clear the setting.

The settings available on that ecu are the injectors codes and the accelerator type, 2or 3 track.

The injector codes are composed of 5 characters, 4 literal and 1 that can be numeric or literal. The first 4

characters are coupled two by two and the last one is single (for example NN FG 5 ).

The last character can be different because there are 3 types of injectors built from year 1999 up to now.

Type 1 Type2 Type3

C M 0

A E 1

B F 2

C G 3

* H 4

* J 5

* K 6

* L 7

* M 8

The Nanocom shows all the 3 possibilities for the last character, but when you modify the code you have to

write the code as it is printed on the injector; the Nanocom will automatically check the 5° code."

This appears to contradict what I said earlier about entering the fifth digit as a numeric value, (though this seems to work anyway,) but also backs up what I found by just entering the "C" on it's own.

Doesn't seem to get much clearer though??

Clive

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Just a quick thought. When I said yesterday that I changed the settings for two of the injectors, I didn't change the injectors physically, just the code values in the ECU to see what effect it had on the numbers reported back on the NanoCom.

Clive

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That makes it clearer. So it's as I found the other day - just enter the code as it appears on the injector and NanoCom does the rest.

Yup,its as simple as that. But there is a fault with V2.05- and Nanocom will not reply.

e.g. My type 2 injector stamped NGGBG is report as NG GB 3-G-A

Using the Nanocom guide that you pasted above- this is an impossible combination

It should read NG GB 3-G-C

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... Yup,its as simple as that. But there is a fault with V2.05- and Nanocom will not reply...

Well, nobodys perfect. :P

Seriously though, I would have thought they would have some sort of solution to the problem, maybe thats why they've not replied yet - they're still looking for the answer?

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  • 4 weeks later...

Hello

in Germany we had the same problem. Mattia from NANOCOM told me, that there is failure in there pdf document. Also the version 2.04 makes problem to write the right injector codes. The right codes there written with the 2.05 version, the pdf document is already wrong. NANOCOM shows only the three possible injector codes of the three types of injectors that there build since 1999. In the ECU it is not written what type of injector is build in. Also the ECU didn´t store a,b,c... It stores only a number what identifies which injectortype is in. Some injectors get the same number when you store the injector type in the ECU. So it is possible to get other codes from the ECU when you read the codes out. I hope I could help.

Lucky

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