MAF Sensor Renew Problems

[surreychris]

Hi All

2001 W210 E220cdi

A while ago i had a faulty MAF sensor on my above car and had been driving it with the sensor unplugged.

Last weekend I bought a new one from GSF and fitted it to the car and for a few minutes the car seemed more responsive and better than with it unpluged.

The car then seemed to idle funny and then whilst driving stalled. Itried to restart the car and it would not start. I unplugged the new sensor and again the car started first time and has driven fine since albeit that it is still on default settings.

I have the following questions;

1. Does it make a difference what way up/down I fit the new sensor

2. Does the previous faults need to be delete from the ECU with Star inorder to allow the engine to run properly with the new sensor

3. Failingt the above, what may have caused the problem with the ne sensor

thanks

Chris

 

[surreychris]

Hi All

Any Answers ????

Thanks

Chris

 

[BlackC55]

What make was the sensor?

 

[surreychris]

Hi

It wasn't bosh, it was some name beginning with P, GSF said they were a good german make.

I did think it may be a bad quality sensor but assumed it may work but just not last as long as the oem, i didnt expect it to go after a couple of minutes tho

Thanks

Chris

 

[renault12ts]

P for Pierburg. OEM.

 

[surreychris]

Hi

Yes thats the make, so it is oem then, that maybe rules out a bad sensor then

so its back to either ive fitted it upside down (though I dont think so) or the previous stored maf faults are causing issues with the ecu

Thanks

Chris

 

[Olivier]

there is an arrow pointing the flow direction on the casing, next to one of the screw hole.