Quote:
Originally Posted by Gareth2510
Volvo plugs.
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You're lucky then - they come pre-gapped to 0.65-0.7mm. Default gap on NGKs is 0.9mm which is way too large. No reason to suspect the gap would increase substantially over 1k miles so (for now at least) you can probably ignore them.
By the way, FYI the ICV won't effect running on the throttle - clue is in the name - Idle Control Valve.
Also, your Volvo can't be scanned with a generic OBD-II scanner, it still used Volvos own OBD system that isn't recognised as one of the default protocols.