Hi, hope you found the solution.
I have the same problem for more than one year and still did not found the solution.
Mine loses power about 2000rpm, it drives very fine till it reaches 2000rpm, and wastes 12/13 litres per 100Km, I cannot go with the van anywhere.
This is all what I already done:
Changed the air mass flow for a new one but one from ebay cheap ( maybe the problem)
tryed already 4 sensor injectores bought from ebay (cheap)
changed all the injectores for other second hand
New, fuel and air filter
changed the turbo wastegate actuator (the other was good and this one is good also)
tested the brake switch, one contact opens as the other closes (its good)
tested all the turbo pipes with pressure air looking for leaks (they are good)
checked all wires from sensors ( fuel quantity actuator from fuel pump; MAF; sensor injector) to ECU
No faults on the diagnostic tool.
the heads were machined, valves reseted,new steam sealers aplied, new headgasket, new headbolts, new water head core plugs aplied
the fuel quatity actuator reads 15ohms and it get 12volts
all the sensor injector reads between 90ohms to 100ohms more or less, never more than 110ohms, and not less than 80ohms
Problems I have:
first time ignition key is placed on ignition and car started , the acelerator pedal does not work at first time, only at second time, if I disconect the car without taking the key out and start again the acelerator pedal works at first push.
the car still makes alot of smoke when starting (white) and idle is very rough, I realize that if I disconect the fuel quantity actuater from the plug the car does not mae any smoke on start and idle is very smoth.
either way at 2000rpm loses power and wastes alot of diesel with or without the fuel quantity connected
everytime I connect/disconect a sensor I disconect the battery for several minutes
My car electritian says I have a bad MAF , because its a cheap one not a original bosch, and I say to him, man I haven´t got more money to spend on this. lol
My friend try to disconect your MAF with battery disconected , wait ten or twenty minutes them conect it again and connect the battery maybe its a simple thing, or change you MAF but be sure its a bosch one or it will end like mine.
I was forgotten, also cleaned the EGR valve and was working fine, even so I disconect the vacum pipe from it and put in a blind gasket , but nothing changed.
Edited by B.Santos on 24/05/2011 at 00:59
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