Vauxhall Vectra C - fuel return pipe?

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Mon 21 Mar 2011 22:06
Vauxhall Vectra C - fuel return pipe? - fullyautomatix

hi, i have a vectra 2.2 sri direct. could anyone tell me if the pipe that leads from the fuel pressure regulator to the cam driven high powered pump is in fact the return pipe, as described in the haynes manual, or is it the feed to the pump? the only other pipe from the pump is a metal one which leads into the injector rail, so by deduction the so called 'return pipe' must be the fuel line into the pump surely?

hope this makes sense to someone out there.

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Mon 21 Mar 2011 22:49
Vauxhall Vectra C - fuel return pipe? - elekie&a/c doctor

There are 2 pressure systems on these.The low pressure system is from the in tank pump module which has its own pressure reg built in.This supplies the high pressure pump which is driven from the camshaft.Excess fuel is returned to the input side of the high pressure pump.There is no fuel return to the tank.If that makes sense.hth

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Tue 22 Mar 2011 12:54
Vauxhall Vectra C - fuel return pipe? - fullyautomatix

There are 2 pressure systems on these.The low pressure system is from the in tank pump module which has its own pressure reg built in.This supplies the high pressure pump which is driven from the camshaft.Excess fuel is returned to the input side of the high pressure pump.There is no fuel return to the tank.If that makes sense.hth

thanks for your reply, i think it makes sense yes. so what the haynes manual describes as the return pipe, that leads to the high pressure pump, is in actual fact the supply to the pump?

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