Why is my Vectra misfiring?

I've got a misfire on my 2001 Vauxhall Vectra 1.7. Sometimes it's fine, others, it's struggling to go. Any ideas?

Asked on 20 February 2015 by Old Vectra owner

Answered by Honest John
Presumably the old Isuzu 1.7 diesel engine, so the problem is likely to be one of the injectors. If it's clogging you may be able to cure it simply be adding a fuel system cleaner to the tank and filling up with shell V-Power Nitro Plus diesel.
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Far better than previous Vectra. Now with decent handling and an excellent ride. Plenty of safety kit. Roomy in the front. Big boot. Good looks.
 

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