Why have you changed a Maf sensor, that fault is related to Turbo charger or Turbo charger solenoid....

 

Hi,
Can you please provide a reference? As all the literature I've read online states it's a MAF related issue, not once has it mentioned turbo. Also, when I unplug my MAF, my car runs pretty spot on. I'm confused what these P0 codes represent, seems to lead to all sorts of issues...

 

Because they are generic P0;s
So the software that you are using, its giving the CODE P0101. but it will be for all cars,
But when cross referenced over to Renault its showing what the fault code is.Turbo or solenoid

 

Renault use a different protocol in their ECU's but your fault code is generic and doesn't always translate accurately to a comparable Renault fault code. In effect a generic code can be misleading.

When you unplug the MAF the ECU goes into default mode (not the same as limp mode) whereby the ECU ignores many sensors and operates on standard parameters. That doesn't necessarily mean the MAF itself is faulty. I have lost count the number of MAF sensors that have been replaced unecessarily due to misleading or poorly interpreted generic fault codes.

If we knew how the engine is or isn't performing correctly it may help narrow the possible fault.

 

Hi,
thanks for your input, what you say makes sense!
Is driving my car with my MAF unplugged a risk?

I haven't a clue where to start in trying to find the problem.
Have you any areas you recommend checking that seem to be a predominant issue relating to said code on a megane?
Many thanks,
Shane.

 

A bit more history would help.

Why did you have the fault codes read in the first place?
Where there any warning lights on the dash?
Did the engine performance deteriorate?

I take it you have checked the EGR valve, checked for inlet or fuel leaks, etc.

 

Driving one day and I had the spanner and engine light on. Bought a reader and showed a P0101... deleted the code and came back on once I accelerated. The thing that annoys me is, it once went about 5 months before coming back on... but now it'll almost come on when you accelerate.

My dpf needed a clean about 15k miles ago and I had him look at the code also, I remember him looking at the EGR and saying it's clean/fine, and he couldn't find the route to the problem. With regards to fuel leakes, I'm not entirely sure, the car has passed 2 MOT's and had 2 services in this time and they hadn't picked up on leakes.

With my MAF plugged in the car drives fine just has a judder when accelerating at times...
Hopefully this is enough info....
Cheers

 

Hi ShaneMegane17.

just wondering if you ever got this sorted, I’ve got a Megane 2011 1.5dci and I too have had the same problem, only recently it’s got much worse, mine seems 2 lose power when it gets to 2500 revs, like it really starts to get jumpy, and loss of power is almost instant. I too have been to a garage and they couldn’t find the route problem.
When it started it would go 4 months without it happening and i need to use it for work so have t really had time to get it done, now it’s consistently been like it for the last couple weeks.
I’m getting a “check anti pollution system” and “check injectors” lights on but they don’t stay on, but the losing of power is constant now, anything after 2-3000 revs and it just loses all power and starts to judder.
Any help would be greatly appreciated.

thanks.