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Electrical fault and emissions light problems



  Clio mk2 1.2 16v
Hi guys, can anyone help me out?
For some reason the emissions/engine light and electrical fault light will occasionally come on and the car will struggle to accelerate, it's hard if not impossible for the car to get over 3k revs in any gear and it feels very jerky when a accelerating. This problems seems to go away once the car is switched off and on again however occasionally it will reappear and the problem starts again. Any ideas? the engine light has come on once before after it snowed and something similar did happen, something about a throttle valve, got a mechanic to look at it but he said it was fine and didn't need replacing. Could there be a problem with corrosion/wiring or something else?
Cheers
 
  PH2 172
Hi guys, can anyone help me out?
For some reason the emissions/engine light and electrical fault light will occasionally come on and the car will struggle to accelerate, it's hard if not impossible for the car to get over 3k revs in any gear and it feels very jerky when a accelerating. This problems seems to go away once the car is switched off and on again however occasionally it will reappear and the problem starts again. Any ideas? the engine light has come on once before after it snowed and something similar did happen, something about a throttle valve, got a mechanic to look at it but he said it was fine and didn't need replacing. Could there be a problem with corrosion/wiring or something else?
Cheers

Welcome.

You could start here, and pay particular attention to post 13 by Mick.
https://www.cliosport.net/threads/2-fault-codes-help.705335/

This is a very common problem.
 
  PH2 172
Cheers for the help, will check the wiring around the ecu at some point today.

Clean all the relays & the pins in the white plugs.
 

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