182 Mass Air Flow Meter?

[dminett-smith]

Hello all,

I was having a look around under the bonnet of my 182 cup yesterday and could not locate the mass air flow meter?

Either I am being dull, or the car does not have one? Maybe the car has a pressure sensor in the inlet manifold rather than a MAF?

Can someone knowledgable enhighten me?

Cheers

Dan

 

[Neil G]

I believe the 172/182 uses a map sensor (manifold absolute pressure) instead

 

[dminett-smith]

Ok thanks Neil.

Can anyone else shed some hight on the issue.

Does anyone know for sure? Edde, Yozzasport, Shed???

Cheers

 

[Joe@ShedMotorsport]

I'm pretty certain it runs a MAP sensor, most newer cars tend to. Haven't had a poke around for a while TBH

 

[BenR]

light on the issue?

It a Map sensor, offside of the manifold, stuck right in the end of the plenum.

Rectangle shaped.

 

[Fred@BTM]

light on the issue?

It a Map sensor, offside of the manifold, stuck right in the end of the plenum.

Rectangle shaped.

what he said

 

[BenR]

what he said i said ^^

 

[dminett-smith]

Thanks guys, glad i'm not goin crazy!

BenR, I have no light issue was just curious thats all. The reason I started looking was because I have some combustion chamber cleaner which I didn't want to spray over the maf. If the 182 doesn't have a maf i'll give it ago. (previous owner ran car on normal Tesco fuel, in reality probably wont make any difference!)

Thanks for all your help..................

Cheers
Dan

 

[BenR]

chamber cleaner?

It takes me a wire brush on a die grinder to really clean them when they are off, or some seriously aggresive carbon digesting enzymes.......some spray in a can wont do the trick really. And it'll be back to exactly the same condition in 2 mins.

 

[dminett-smith]

I fully understand BenR.

This is just a token effort as I had a can lying around. Maybe one day I'll go the whole hog and get the head off.

Cheers
Dan

 

[BenR]

lol, no worries.

But remember, a uniform coverage of carbon is required to sustain an efficient burn.

 

[dminett-smith]

Hi BenR,

Sounds like you know a lot more than me about this topic.

I have only owned my 182 cup for 2 weeks, I have been taking it pretty steady. I have opened her up once or twice and was concerned that I could hear what I thought was pinking. I have posted on the forum about my concerns but it appears that no-one else has heard a 182 pink before (Standard car). Many people told me that a tinkling noise was characteristic of the 182 exhuast. This may be true as it certainly isn't hard pinking like i've heard on other cars, just I slight tinkle under power between 4500-5500 rpm. It can not be heard at low rpm under high load, which in my experience is when cars pink if their going to.

What are your thoughts?

I also have a slight rattle/tinging noise at about 2500 rpm which I have put down to baffles in the ceter section or perhaps the cat. Maybe at higher RPM under load this prob re-occurs as the noise I think is pinking?

Rather diss-jointed message I know! I would appreciate any advice/comments you can offer as you clearly have lots of experience with 182's.

Cheers

Dan

 

[BenR]

They wont pink in std trim unless there are serious ECU problems, which is higly unlikely.

The knock sensor will actively r****d ignition to prevent pinking if it even gets close to a frequency that pinking emits. Even if the sensor doesnt work, the ecu will notice this an add a baseline reduction in total timing across the ignition map.

These engines emit alot of 'noise' and tbh, to 'hear' pinking is vitually impossible, i dont trust anybodies 'ears' when they are trying to distinguise a very very small frequency range with tiny amplitude.

 

[dminett-smith]

Ok thanks Ben, it must just be the exhuast note I can hear.

Cheers for your help

Regards

Dan

 

[Neil G]

Where is the knock sensor on the Renault located Ben?

 

[BenR]

front of the block, middle, big brown hex shaped sensor. Single dual pin plug.

 

[Neil G]

Cheers