Astra j p0171

[@corrado2ful]

thank you very very much, very helpfull!!

[@mehdidz4126]

Thank's freind Good work

[@CarlosGarcia-ls4hn]

An alternative procedure is to look down the tube where the hose is connected, and if you see an orange nipple down below, it tells you that the valve is still in place and is working.

[@user-we5mi6zl2s]

Thanks very interesting. Is it the same on the Z18XE engine thanks?

[@themobimech5496]

I have tried this on my car and I have no vacuum at all, I have oil in my cylinder, is this likely the cause??

[@tinkeringwithcars3875]

Hi, I've got an astra j in at the moment. How much vacuum should be created when you suck? I can blow air in quite freely and I can suck air out but with slightly more resistance. Should just be able to suck any air out? Thanks

[@danthecarman8440]

The one way valve you are testing for vacum should at least hold a good amount of vacum. Exactly how much is hard to say but normally the valve just falls out and you get no vacum at all on sucking through and it should hold the vacum. Hope that helps.

[@tinkeringwithcars3875]

@@danthecarman8440 thanks Dan. I can suck air through and not much of a vacuum but there is definitely a bit of of vacuum there. Trouble is a i havent got a known good 1 to compare it to.

[@garethdavies7326]

Can this fault also cause failure to hot start or is that a separate issue even though P0171 is showing?

[@danthecarman8440]

No this fault won't cause a failure to hot start.

[@raducumucu1]

Headcover can be repaired: kzbin.info/www/bejne/aZfIn6BrgqeLl5o

[@sundek88]

And you know the price for the Non-return valve, or the complete piece? Fuckin Opel I've got the P1011 Error, i've replaced the head that you replaced aswell and now i've got a P0171 code... damn

[@danthecarman8440]

The non return valve is in the manifold and all one piece. Its a rip off I know.

[@Muhammet459]

Thank you very much, is it necessary to check the crankcase ventilation hose too?

[@danthecarman8440]

Yes for any cracks