Hi All,
My Signum has recently developed an Hesitation/Missfire around 2500 rpm any gear.
It used to do it bang on 2500 rpm which i put down to a mapping problem, but now its anywhere between 2100 and 2800 rpm random.
This only hapens when the Engine is warm if this helps.
No warning lights are present and the car drives very well apart from that.
Egr has been cleaned.
New air filters etc. changed.
New Glow plugs fitted.
Regards Alan.
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