Coding Injectors with Hawkeye

I've just got myself a Hawkeye and had a go at coding the injectors as they were all wrong (car has had an engine change in the past).

I've managed to do it but there's a slight issue, on each code after inputting, it's changed the last letter. I've tried doing it again and it just does the same - asks me to confirm I want to change the code, which displays the correct code, I confirm it and go in to read the codes again and the last letter changes to a different letter.

Is this normal?

If not, any suggestions?

it's normal as long as the ECU is an early MSB one with EU2 map and the engine is the 15P type with EU3 injectors... then hawkeye will put A as last letter as it can't accept other than A, B or C, or if both are EU3 there is the chance to put M if something is not compatible... the first 4 characters are important and if you can push up easyly the revs above 3000, the cylinder balance is ok and the engine runs fine dont bother with it but to have it perfect you need a proper ECU with EU3 map in it.

Thanks for the reply.

My car is an early model, but the injectors are green top. As far as I know, it's a 10p block with a 15p head on it.

Funny you should say about the 3,000rpm as it does struggle to get there and struggles even more to pass it. I just put this down to having 35" tyres!

I have changed the injector harness and injector seals in a hope this would help but it made no difference.

Do you suggest I buy an ECU off a 15p model? Will I be able to code this to my car using the Hawkeye?

that's what i said, you have an EU2 ECU for which hawkeye is up to accept black or blue top injectors which have A, B, or C the last letter, non properly coded injectors will work as you described, the best for you is to get a NNN ECU with EU3 map which will accept the green top injector codes...you can synk it with hawkeye to the immobiliser(EMS -Programming - immobiliser - learn code) but it will miss the 3'rd track of the throttle position sensor and the ambient air temp input and for that you'll have to get a new type AAP sensor and rewire the 4'th pin to the ECU(not some killer job though)

if you want to make this 10P-15P mixage to work perfect the best would be to replace the engine main harness with a EU3 one, put a 4 pin AAP sensor and 3 track throttle... quite expensive... what you can try is to find somebody with nanocom cos they say it's able to "force" the last character into the EEPROM even if it's not the dedicated one...i have nanocom too but never tried that to be able to confirm...see attachment starting from bottom of page 4

there are 3 types of injectors fitted to the TD5 -

when you read the injector codes with a nanocom there is a button labeled 'INJ. TYPE' - if you press it a few times the last figure cycles through the 3 - they all mean the same thing

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

as said previously i believe there is a compatibiity problem between green top injectors and early ECUs

something related to this discussion here http://www.landyzone.co.uk/lz/3131431-post16.html

Thanks for the info, I'll keep my eye out and if an ecu comes up at a good price I'll give it a go.

I seem to have an issue where occasionally the car will start then stop again. Once it's done this it'll turn over for ages before it starts again.

It also puffs smoke (unburnt diesel) and runs a little rough when starting from cold. Could this be related to the mismatch of parts I have?

I have changed fuel pump, bleed valve, fuel filter, injector seals and harness and nothing has made any difference.

any fault cods logged? ....cos these symptoms might have other reason.... crank sensor maybe

The only codes logged are related to egr and maf. Both of which are disconnected.

In the cylinder roughness, no.1 will occasionally flicker to about -10 but generally all are hovering close to 0.