HELP! Air flow meter

[Christophe]

I have done a search but not found much.

My car will randomly be chugging really bad so bad I have to pull over. When it chugs the revs are all over the place and when i come to a stop the revs die completly and cut out. Starts up fine except i got to rev it a bit so the revs hold them selves other wise it dies again or the the revs go up and down them selves.

I have been told it could be my air flow meter that is faulty. Is this like a sensor? Does a 172 have a air flow meter or is it in the map sensor??

Do you think this could be the cause of the problem. I have a BMC induction kit with a CAF could this be ruining the air flow meter??

 

[stu-172]

Air flow meter is on the opposite side of the Inlet manifold from the map sensor iirc. Like all sensors they can easily go faulty. Prob nothing to do with the BMC imo!

 

[LegoHead]

There is no air flow meter just the map sensor

 

[Christophe]

o right so its the map sensor that controls the air flow and that. Does my symptons sound like it could be this?

How much is a new map sensor.

 

[stu-172]

There is no air flow meter just the map sensor

what's the other sensor then? Mine def has 1 on each side of the manifold?

 

[bmh.01]

There is no air flow meter just the map sensor

what's the other sensor then? Mine def has 1 on each side of the manifold?

Pic? There is no MAF sensor on a 172, are you getting confused with the throttle body as its electronic?

 

[stu-172]

In work atm but there is the black sensor which is the map sensor and then there's a grey sensor in front of the throttle body? What's it?

 

[bmh.01]

http://gallery.getflat.co.uk/v/My_Cars/2003_Renaultsport_Clio_172/Standard/CIMG0211.JPG.html

If your meaing the black box where the inlet hose goes to the right of the engine cover thats the throttle body.

 

[mattjk]

In work atm but there is the black sensor which is the map sensor and then there's a grey sensor in front of the throttle body? What's it?

I reckon your talking about the temp sensor.

 

[Christophe]

how much am i looking at for a map sensor

 

[bmh.01]

how much am i looking at for a map sensor

Circa 60 notes iirc.

 

[mattjk]

I think i'v got one lying around in the garage ill have a look @ 6ish when I'm home

 

[Christophe]

are they easy to fit??

 

[bmh.01]

Yep, unplug pull old one out push new one in.

 

[mattjk]

dont snap it though lol pull it straight not at an angle.

 

[Christophe]

Yep, unplug pull old one out push new one in.

and it automatically recognises it dont need to reset nothing?

 

[mattjk]

Nothing needs to be reset