Stalling on 2.5DSE

About three days ago it came up with alternator fault at start up but didn't do it again (charging at 13.5volts). A few times over the last two days it has stalled whilst rolling upto traffic lights. I don't think it has the EGR as it certainly isn't on the end of the plenum and the little vacuum pump isn't fitted on the wing. Any ideas or is it plug it in and see what comes up.
Thanks.
Rob.

13.5 volts is low, should be over 14 volts after a short time, could be dodgy battery or alternator. Still best to get the fault codes read.

Datatek said:

13.5 volts is low, should be over 14 volts after a short time, could be dodgy battery or alternator. Still best to get the fault codes read.

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Just tested it again and tickover no load 13.9, 2000rpm with lights, aircon, radio and hazards 13.6. It is going in for heater "O" rings early in May so I will get it plugged in at the same time. Good job it came with a 3 month warranty

Well it hasn't stalled for 3 days so it might have been the power steering glitching because of crud in the box. Will have to wait and see.