Help renault clio II 1.2 8v width safir2 motor cod D7F 720 don"t rev up !

[mexanico1971]

Hi !
I have this problem in renault clio d7f 720 , car wont rev up !
is not ecu problem !
it was changed !
I diag width can clip and no DTC"s !
cranksaft sensor is good !
it"s possible that thoule body is bad and no dtc showed ?!

any sugestons for the problem are welcome !

thank"s in advance !
BR

[mexanico1971]

Ei !
nobody have the same problem ?!

[Dunker]

Apart from throttle bodies, on 1.2 16v engines 02 sensors cause all sorts of weird non starting, non revving, flat spots. All sorts of strange stuff. Might be same on 8v? Check all earths and make sure all lives are good and can supply enough current (voltage may be there under simple test but when loaded it could drop). Green death inside plugs in engine fuse box and relays etc. is common also. Wires can break inside sheathing as well - but this usually puts a code up. UCH can get water in if sunroof leaks or scuttle drains block.