help needed from u mechcanical geeks...

[Limca]

My mate wants to know the following... (also any renault techs near newport south wales?)

just scaned my mates 1.2 clio on a t plate and it had 3 codes, crank sensor, map sensor and throttle valve resistor!
I tryed to erase the codes but one wont budge!!!!! (03 circuit throttle valve resistor)

Can anyone tell me what it could be or know what it is???

the orange injection light is on along with the stop light. car jerks n will not rev up

Thanks

 

[EdwardTobia]

Regarding the jerking i would guess its one of three:

Dodgy spark plug(s)
Faulty injector(s)
Coil Pack

Could be other things, but these are the most common...

 

[Edwards2k9]

coil pack.... is it a twin coil pack with lyk a pack for 1 cylinder and 2 cylinder and then the second pack for 3 and 4 if it is a twin pack it will only be 1 faulty most likely anyways that will be yh jerking