Megane II 1.5DCI cutting out

[drinu]

Hi guys,
Im new here

I have an 07 Megane Estate 1.5DCI and lately its been giving me problems when being driven on light throttle. The car sort of misfires and jerks. It does well when giving it some gas, but otherwise its a really uncomfortable ride. The idle is fine.

I have changed EGR as it was stuck in the open position and also the diesel filter, but still getting the same. I also have a very small hole in the EGR pipe which is getting replaced but I dont think that this is the issue either. I have checked the throttle position sensor on the accelerator pedal and its fine and not giving any errors (checked with OBD).

Any ideas what else I can check out please? TIA

Ad

[GreenV8S]

drinu said:

I also have a very small hole in the EGR pipe which is getting replaced but I dont think that this is the issue either.

If it's causing a vacuum leak, this would have the greatest effect at low loads. It ought to show up on the adaptives if it's this. Depending on access, you might be able to effect a temporary repair with gungum to see whether that's affecting the problem.

[annodomini2]

drinu said:

Hi guys,
Im new here

I have an 07 Megane Estate 1.5DCI and lately its been giving me problems when being driven on light throttle. The car sort of misfires and jerks. It does well when giving it some gas, but otherwise its a really uncomfortable ride. The idle is fine.

I have changed EGR as it was stuck in the open position and also the diesel filter, but still getting the same. I also have a very small hole in the EGR pipe which is getting replaced but I dont think that this is the issue either. I have checked the throttle position sensor on the accelerator pedal and its fine and not giving any errors (checked with OBD).

Any ideas what else I can check out please? TIA

Ad

I would get a 2nd opinion on the fault code, Renault OBD2 codes don't always match the actual fault.

They also don't always give an OBD2 fault even though there's an active fault in the system.