Sprinter 312 overfuel after start from cold

markwilson8954

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Hi all,
After start from cold, van starts ok then after about 5 seconds runs very lumpy and bellows smoke out of exaust for about 5 to 10 seconds before clearing and running fine threafter as if its over fueling.
If started when engine is warm this fault does not occur.
Glow plug cuircuit is working ok and all glow plugs are checked and ok with 12 volts on them when started from cold and staying on for a couple of mins till vehicle is warm enough to run without.
have checked all earth and battery connections including changing battery.
Anyone any idea's

Cheers
 


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Specialist in parts for W140 and R129 Mercedes-Benz models.
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