Bmw 320 d

[tezzero]

Bmw 320d 110 kw of 2002, after many many tests, I affirm with confidence that the regulator DRV place on the rail remains open when you release the pressure and the car is not v? in motion,the unit will come out the 12 volts of command, but in diagnosis when you v? in the starter remains planted to the 5% not allowing to load more than the 60 bar...connecting my simulator, the system arrives safely to 800 bar..according to me ? a problem with the ecu..you have other tips..thanks

[explode82]

if the imianto works well,or change the regulator and see if it is in motion,or at this point search, the engine ecu the write up of the original ecu and see if the car goes or not

[tezzero]

I am looking for a ecu..then I'll know thanks

[giama'a]

the command of the drw and pwm have you checked with the oscilloscope . try another one before I put the hands to the centrtale

[tidus1985]

rianimo this discussion, bmw 118, before the firewall. regulator drv, the mechanic disassembles all the injectors thinking they were the ones, before at least the machine was for a while in the bike, replaced all the injectors, the car will not turn over it turns on for a second and immediately turns off, tried to plug the drain of the drv, but the valve ? literally exploded, putting a new valve the error goes away but continues to lose a lot of fuel from the outlet of the valve drv, control voltage of the valve 8v power on 5v, but the voltage equivalebnte since and managed in pwm. p?remetto that the above machine ? been replaced the body computer because they had attached the booster to the reverse and burned iunn bit of stuff but the engine seems to communicate perfettaente

[Backgroop]

rianimo this discussion, bmw 118, before the firewall. regulator drv, the mechanic disassembles all the injectors thinking they were the ones, before at least the machine was for a while in the bike, replaced all the injectors, the car will not turn over it turns on for a second and immediately turns off, tried to plug the drain of the drv, but the valve ? literally exploded, putting a new valve the error goes away but continues to lose a lot of fuel from the outlet of the valve drv, control voltage of the valve 8v power on 5v, but the voltage equivalebnte since and managed in pwm. p?remetto that the above machine ? been replaced the body computer because they had attached the booster to the reverse and burned iunn bit of stuff but the engine seems to communicate perfettaente

I would start from the tank, have you measured the fuel pressure at the pump output pressure and low pressure? if the pressure or the flow rate of the fuel are not sufficient, the control unit implements a strategy to DRV closing and reducing the flow of diesel fuel on the return, to the contrary, if the pressure is too high or pi? high normal or to a return line is blocked, or excessive rejection of the injectors, etc.. the ecu tends to open the DRV to drain off the fuel in excess..

[tidus1985]

With the tool Bosch me soloa pressure on the rail ? 6 bar

[ugoboss]

with 6 bar in the rail you are not certain in motion, controls the rejection of the injectors, about what has been done on the injectors.

[tidus1985]

Obvious them for me from from a stop, if I try to turn on is to 6 bar a few seconds, then begins to climb up to 150 bar is set in motion and you soenge immediately. The j readers ? the state did nothing, disassembled and reassembled because he thought that they had problems, when she removed the machine from this defect, it is first lit, it exceeded 2500 rpm and dies

[Backgroop]

Obvious them for me from from a stop, if I try to turn on is to 6 bar a few seconds, then begins to climb up to 150 bar is set in motion and you soenge immediately. The j readers ? the state did nothing, disassembled and reassembled because he thought that they had problems, when she removed the machine from this defect, it is first lit, it exceeded 2500 rpm and dies
The error that occurs by making the diagnosis?? it could be a problem of excessive pressure

[tidus1985]

4b90 error drv gi? changed one valve

[Backgroop]

4b90 error drv gi? changed one valve
the car is fitted with two pressure regulators, 1 on the low precisely on the tandem pump attached to the high pressure pump and 1 on the rail.. which will you have changed?

[tidus1985]

Then, this first error, replaced the regulator prex on the pump and error cancelled, but after ignition reappears, how to understand which is the regulator of oressione problems?

[faberecu]

I don't remember well ... but can has two pumps diesel a transfer and one under the driver's seat under a carter

[tidus1985]

I think I have 2, because you feel it when you put the framework 1

[dvdtuning]

rianimo the discussion as I have a 320d e91 163cv with the same error 4b90 , the car tries to start but does not start. I have to say:
- that the car wouldn't start (due to tampering ews) and have checked the pump and injectors are ok
- tampering ews resolved
- I noticed that when I put the picture I don't feel the pump low pressure, however, if I give him the command in the diagnosis feels
- start-up the pressure reaches about 150bar
- the error ? active, the cio? it does not delete and the from to on key

[munro]

was made to the procedure of learning to the drv in the ecu?
that v? done when you change the regulator drv?

[dvdtuning]

not ? changed the regulator...but the drv would be the valve on the injection pump?

[dvdtuning]

I tried to do this procedure, but even with the dis makes me do it

[autronica]

The pump pre-power supply must provide approximately 4 bar, both in the start-up phase that is in motion. if it doesn't work well the pump low pressure that high is impaired. I would start from the first with this control... the error ? active even just turning on the ignition without attempting to start-up..?

[yannsaba]

Make separate diagnosis on the ecu epk (the one that runs the pump, low) ? see if something comes up.

[dvdtuning]

The error ? active without attempting to put in motion. I did the test with the dis on the pump and on the ekp and is everything working...the only thing ? that I do not hear the pump at low pressure when I turn the painting? ? normal?

[manu90]

I had a similar problem on a 330d, check out the real operation of the pump, the low pressure, try to disconnect the outlet pipe of the pump and see if the diesel comes out under pressure

[franco1971]

sorry, but when the rail pressure as a means,because it is very strange that once in motion immediately turns off