In this tutorial we take you through using the Britpart Lynx diagnostic interface unit to code injectors on the Td5 engine fitted to the Land Rover Discovery…
Reading and coding Td5 injectors Land Rover Defender – Discovery 2
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the man at the start is called steve grant
Td5 injector coding
The problem Unfortunately, even with today’s very high level of
manufacturing processes, producing injectors to exactly the same standard
is difficult. It’s not that it’s impossible, but to make every injector the
same would mean re-tooling every piece of equipment on the production line
for each injector just to ensure that they would all be identical. This is
clearly impractical and it would also mean the cost of each injector would
be prohibitively expensive.
thank you for explaining that, any one know why they are all different ? i
would have guessed that the same colour injectors should be flow tested the
same ?
Well demonstrated as always.
Handy bit of kit that
This overcomes the problem of not all injectors performing in exactly the
same way and keeps the cost of manufacturing to a minimum. It also allows
for the increased benefits of tighter emissions control methods.
So what can the manufacturers do to overcome this dilemma? The answer is
quite simple. Due to these slight differences in each injector, the
manufacturer can test the injectors during the production process and, by
looking at the pre-recorded values from a known good injector, it can give
each injector a unique identifier code. What this code actually does, is
allow the engine management system to let the ECU compensate for the
characteristics of this particular injector.
Thank you my man!
following explaination is taken from The technical book Sept 2008 An
article covering the TEXA diagnostic equipment.