Rough running above 4000 RPM

[Cesare]

I guys, thank you for the tips !

Don t know if it is linked but when passing the 4000rpm , my engine is like it doesn t want to go further, it shakes a lot and seems like there are interruptions in the engine running ?

Not sure I m very clear ...

Thanks if you can help

I just bought new sparkplugs , don t know if it can do something ?

Best

Cesar

[L.G.]

Cesar,

Does your engine light comes on? If ECU detects an error it limits the engine to 4000 rpm, stores an error code and your engine light should come on. If it doesn't climb the revs after 4000 rpm this the most likely thing to happen.

If this is the case you may want to look at here and here.

Hope I was helpful,

L.G.

[Cesare]

Should the light keep showing even with just the ignition on ?
Or does it show only when getting to 4000rpm ?

[dermotbell]

The engine light should flash twice at start then go out after start. If it comes on during running it is an indication of a fault. In that case you will need to do the paperclip test.

[Cesare]

Hi,

In fact the engine light is not showing, and when I try to enter the "diag mode" I can t !

Do you think it can be electrical ? or other idea ?

Thanks

Cesar

[GeoffSmith]

I think that maybe the warning light has blown or been removed.

[rip]

Sounds like yours is doing the same as what Jetro's did last year. After enough running, the engine check light did actually activate.
Elanscan revealed a CAS fault.

[theelanman]

I think that maybe the warning light has blown or been removed.

does it blink twice when you turn the ingition on????