Technical Fiat Stilo 1.9 JTD 115hp unknown problem

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Technical Fiat Stilo 1.9 JTD 115hp unknown problem

kemaloff

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Nov 12, 2014
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Hi all
I have the following problem:

The car starts with no fault showing up on the dashboard. So i push the pedal to find the biting point and the rev count barely moves to 2000rpm.
The engine sounds as if theres hardly any power and itself is struggling.
Also as im tapping the pedal there is grey smoke from the exhaust.
I disconnected the MAF sensor and everything goes OK.
Today I changed the old Bosch sensor with the new one Pierburg 7.22701.05.0,
but nothing happens. The same grey smoke and barely moves rpm to 2000.
My question is. Has anyone had this problem and got it resolved?
 
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so, with the MAf unplugged, it drives ok? What about if you unplug this new one, does it still go ok?


everything you say points to a faulty MAF, and though its unusual you could still have a faulty MAF or problems with the wiring. That said, maybe you need to check everything before the MAF - the air filter and associated pipe work.
 
Yes with the MAF unplugged the car is OK. With the new and with the old the car is not OK.
I will test with MAF produced by Bosch.
 
Today I connect to the car with AutoCom. The MAF was connected and I don't have any problems. I found that the MAP sensor not change his parameters when I push the accelerator. Maybe the problem is with the MAP sensor?
 
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