Revving problem?

[Johnny_52]

When my engine is warm some times the car will not rev past about 5.5k. It stutters and the over revving light comes on. Had it into Renault no faults showing on the computer. Any ideas??

 

[edde]

Spark plugs incorrectly set.

 

[Johnny_52]

Spark plugs incorrectly set.

Incorrectly set? What do you mean?

The car has had its plugs replaced, Should this make a difference?

Thanks edde

 

[MRBILLYUK]

Edde means the gap on the electrode might be incorrectly set . But usually spark plugs come gapped already for the vehicle they are intended for .
Who replaced your plugs ?

MrBillyUK !

 

[Johnny_52]

I got the plugs from a motor factor, and a local garage fitted them. They were the correct plugs i double checked them. Could the inlet manifold be incorrectly fitted?

Johnny

 

[MRBILLYUK]

Sounds like it could be but i'm not a mechanic so i wouldn't like to say 100% , maybe somebody with more experience will have a better idea .

You would have thought if it was the gasket on the inlet manifold it would be causin a problem right across the rev range ??

I know when my spark plugs were f*cked on my old 172 it was coughin and splutterin up to 2.5k revs then was fine above that .

You'll probably get some better advice late today . Hope ya get it sorted mate .

MrBillyUK !

 

[Johnny_52]

Anybody have an idea what could be wrong?