On the 300ZX the fuel cap has a releif vavle in it, sucks in through the cap and expels through the carbon canister. This can happen if you have a non releif cap on a 300ZX.
Only one i have seen,...
On the 300ZX the fuel cap has a releif vavle in it, sucks in through the cap and expels through the carbon canister. This can happen if you have a non releif cap on a 300ZX.
Only one i have seen,...
Very lucky boy !