Dead sensor?

[S77CCP]

I''ve got a small issue with my 172.

I got in it last night after it had been sat for around 24 hours. Turned the engine on and the coolant warning light came straight on. The car was stone cold and there was plenty of fluid in the coolant expansion tank.

The olny thing I can think of is that a sensor is dead. I last took the car out in the pouring rain and ran through a giant puddle, after that the car was kangarooing badly.

I then took the car for a drive after work and it kangarooed once, otherwise it pulls fine, and the coolant warning light is still on. The only other this is when I accerlate hard (through the gear up to 4th) the temp needle sits in the middle of the gauge, but when I back off it drops a couple of notches.

Any thoughts?

 

[Gaz_]

Damp from the water worked its way in a connector etc?

 

[S77CCP]

That was my thinking.

 

[edde]

Coolent temp sensors failed common thing realy

check the wiring as well it can get pulled and damged leading to this.

 

[S77CCP]

Ops, the light is actually the 'toxic fumes' sensor or something similar. I reckon I've got a dead lamda sensor.

 

[Dan@SJM]

mine did tihs, just needs resetting.

 

[S77CCP]

resetting or replacing?

 

[Dan@SJM]

Resetting, the light came on after I restarted after going through a big puddle, put it on clip and it just came up that it had lost connection, reset the light and all was well.

 

[S77CCP]

How would I go about resetting it then? what is 'on clip'?

 

[Dan@SJM]

renaults computer is 'clip'

or, get a garage with a universal code reader to do it.

I can do it if your near street/bridgwater.

 

[bmh.01]

Clip is the renault diagnostic computer thingy. For your purpose you could do it with this:
http://www.k-tecracing.com/show_product.asp?id=2400

/damn beaten!

 

[S77CCP]

I think I'll still need a new sensor as the car dies badly on part throttle now and again, or when I'm cruising I can feel the power tailing off.