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P0410, P0455 V70-XC70

posted by  gregpat on  Sat Nov 6 07:57 CST 2010
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last visit: Sat Jan 11 19:04 CST 2014
[RELATED]


Hi Klaus...

Thank You.... I did notice that when the ecu energised the vacume
relay it worked fine and operated the valve near the fire wall, and
when I took of the large air input hose... ie. no air, the pump did come on.

I expected the ECU to energise the airpump relay at the same time as the vacume
relay you mentioned. I did swap the large relay under the rad. Shroud.

Which part of this (large) relay actually energises the Air pump..

It works fine if I directly apply 12 volts.

Appreciate your thoughts on this.

Is the J connector near the Carbon/Canister, filter or near the neck
of the fuel tank... I did not see any unusual connector near
this filter...?

Thanks for ur time and Patience,

Greg





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