Hi my 04 Renault megane 1.5 dci is experiencing intermittent loss of power for a second or two until it runs fine again. this usually happens in lower revs around 1-2000 and gears normally 1-3. Bit risky when pulling out on roundabouts etc. Additionally, and whether this is connected I'm not sure, when going at higher speeds around 80mph and 5th gear the car will lose power for longer periods of time like the turbo has stopped maybe and the dashboard flashes up with check injection. Around a year ago I cleaned the EGR valve (perhaps not enough) and today I have done a spill off test and changed a fault injector but both problems still happen. Any ideas? Thanks
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