Will update:
these cars do not need re-code injectors in case of a replacement, or better not to ? expected, and anyway, my diagnosis does not. Even if you find this cause as I set my hand many times to the injectors of the mercedes cdi, and in any case, I had to do that operation. What I always do on the fiat MJ for example, where ? expected, even if non-essential according to me.
Returning to the problem I can only say that, in my opinion, there is no solution, or, better, I maybe I have not been able to find it. As mentioned in another post I changed everything with test material that I keep in the workshop and the problem in any case ? varied, both in better and in worse. Just for the record rielenco all:
pump rail
injectors
pressure regulator
camshaft sensor
crankshaft sensor
fuel filter
flute rail
O-Ring fuel lines
Starter
With the latter I have had some improvements since increasing the speed? start-up engine automatically manages the first to put pressure on the fuel in the rail, which remains low at the start, most hot. Speaking with the customer told me that this car has always had a bit of that defect, even from new, and in my opinion, is accentuated lately, with the relative failure of the starter motor that had lost a few laps by the standard.
The explanation could be a defect in design or perhaps programming of the control unit caused by a modification that introduced the mercedes on those engines right from the year of construction of this car. Up to 2002 on the motors, the Cdi was mounted on the valve Elab, which is in close proximity? the pump rail, then deleted... and probably the car once turned off download circuit rail, something that has not happened since to close the circuit thought, the above valve.
If someone wants to give him a look I can post the mapping that I downloaded from the ecu and to see if maybe there is some solution to ****llo reprogramming ...
Quote
Originally Written by tezzero
