Technical white smoke and very lumpy running.

[BusterMac]

Hi all
I have a 2012 1.6mj 105 (263 engine) 135,00kms
On start up it pumps out clouds of white smoke which lasts for about 10mins. It's still a bit smoky and lumpy even when the engine reaches nomal temp.
I'm not losing any coolant or oil.
Glow plug resistance is fine but no voltage from the relay. Bosch unit 0 281 003 043. There is 12V going to it on the 5 pin plug but I dont know what the other pins should be. I've tried the internet but no joy. Dont want to waste 80€ if its not that.
Fault codes that came up but havent reurned after being cleared are; P010F MAF, cleaned and no obvious problems.
P1131 Lambda 1, signal upstream plausibility ?????
P0131 O2 sensor, low voltage bank 1 sensor 1.
The mileage flashes constantly, but the battery voltage is fine.
Its been to a couple of mechanics who have ruled out the injectors but dont want to waste days trying to find the problem.
One said there was metal in fuel and I need to change the entire fuel system. I have ordered an new filter.

Any help would be greatly appreciated

 

[jackwhoo]

To me symptoms appears to be of low cylinder compression in one or more cylinders.

Diesel specialist for a compression check next sensible check.

Anyone checked air filter?

 

[BusterMac]

Air filter is fine, checked and cleaned when I did the MAF sensor.
At times it runs fine and will run to 4500rpm. but not often.

 

[jackwhoo]

In that case Compression check required.

Its not going to be glow plugs as they are off within about 30 seconds after engine start even in sub zero temps.

With engine running if oil filter cap undone are there a lot of fumes coming out? Be careful of any potential oil spray.

Pull out dipstick sniff the oil....does it smell of diesel?

 

[jackwhoo]

Another thought.....I wonder if it is trying to regenerate the dpf?
That could be a lot better news than low compression.

You need a scan tool more advanced than basic code reader.....it has to speak fiat.

Multiecuscan software is very very good needs laptop and interface