172 ph1 high revs and cutting out

[leon369]

My ph1 somtimes revs high when i dip the clutch coming to juctions and sometimes it cuts out completly i have cleaned the throttle body, still no joy, would cleaning the inlet manifold help? also should i change coil, plugs, leads? thanks

 

[Russ_16v]

Idle control valve I expect mate, cleaning the inlet wont do anything, unless its been off and there is an air leak.

 

[leon369]

Idle control valve I expect mate, cleaning the inlet wont do anything, unless its been off and there is an air leak.

So... New idle control valve?? prices?? links?? where do i get one from?? thanks

 

[Russ_16v]

Depends, you can buy just the valve unit off ebay, or the whole thing from Renault mate.

You might get away with cleaning it out with carb cleaner but rarely works.

 

[leon369]

http://cgi.ebay.co.uk/Idle-air-cont...arts_Vehicles_CarParts_SM&hash=item27b3f26c43 ?

 

[James23]

yeh thats the one, didnt realise they were so cheap they're about 45 at euro!

 

[leon369]

http://cgi.ebay.co.uk/NEW-Idle-air-...arts_Vehicles_CarParts_SM&hash=item35ab73a4e9

£19.99 with best offer, comes with 12 month warrenty, cant go wrong

 

[Andrew Cooke]

since you need to dismantle the valve to fit the ebay one you could try dismantling and cleaning the one you have. It worked for me, it may work for you.

 

[leon369]

since you need to dismantle the valve to fit the ebay one you could try dismantling and cleaning the one you have. It worked for me, it may work for you.

How do you do this? any pics? thanks

 

[James23]

The bit that is in the picture is what you will get and this screws/bolts into a plastic housing that connects to the back of the inlet manifold. you'll need to unscrew/bolt your old one and replace it with the new one, not sure if they'll give you the rubber o-rings with your new one so if they dont make sure you transfer those, too.

 

[Andrew Cooke]

How do you do this? any pics? thanks

I'm afraid not, but the bit you buy on ebay is revetted onto a plastic housing that bolts onto the plenum. You'll need to remove the rivets and replace them with M5(?) bolts to fit the new valve. If you look at the pic on ebay you can see the end that seats inside the housing, it's a plastic type material that was gummed up something horrible on my car, I gave that a good clean and cleaned up the seat in the housing.

I think it'll all make sense when you get it off, but you will need some bolts to hold it all together.

 

[leon369]

I'm afraid not, but the bit you buy on ebay is revetted onto a plastic housing that bolts onto the plenum. You'll need to remove the rivets and replace them with M5(?) bolts to fit the new valve. If you look at the pic on ebay you can see the end that seats inside the housing, it's a plastic type material that was gummed up something horrible on my car, I gave that a good clean and cleaned up the seat in the housing.

I think it'll all make sense when you get it off, but you will need some bolts to hold it all together.

Thanks mate i understand now, where will i get the new o rings, would it be ok to clean with wd40? thanks for you help

 

[Andrew Cooke]

no idea on the o rings, I just reused them.

WD should be ok, I used some brake cleaner and some cloth.

 

[Mattie h]

i have the same problem!.....idles at 2k when dipping clutch, very sluggish and cuts out if you drive too fast and then slow down quickly....may give this a try!

would the part above fit a ph2 172 as well?

 

[Andrew Cooke]

i have the same problem!.....idles at 2k when dipping clutch, very sluggish and cuts out if you drive too fast and then slow down quickly....may give this a try!

would the part above fit a ph2 172 as well?

no, PH1 only

 

[Ben_Stevo172]

So what would be the issue on a ph2? What controls the idle If there is no ICV?

 

[Ben_Stevo172]

Does the ECU control idle on the ph2? Maybe a wire has split/come loose?

 

[Andrew Cooke]

Does the ECU control idle on the ph2? Maybe a wire has split/come loose?

The ECU uses the throttle to control the idle on the PH2