Anyone know what could be causing P0174 errors to keep coming back, also getting it for bank 1 as well sometimes. Happens on both LPG and petrol so have ruled out the LPG system.

I have changed the plugs to affect.

Ideas please.

done a forum search and that code is mentioned in the following threads,hope it helps,



http://www.fullfatrr.com/forum/search.php?...rch_time=0 ... - .- -.




Y. O. L. O.
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lean code , most likely unmetered air entering somewhere , best guess would be at breather hoses on either side of engine , the one on the drivers side can be most problematic IME .( crap design and slack o ring )

could also be slight sticking of LPG injectors , happens every winter to me and a squirt of my own made up solution of wd40, 3 in 1 oil, thinners and easy start , down the lpg hoses does the trick.

could also be dodgy MAF.

you 100% sure its happening on petrol as well?

ie have you run her for 4 or 5 times on petrol only and see if the codes return after clearing?

Last edited by dingg1 on 2nd Mar 2016 11:13am. Edited 1 time in total

which hoses are you talking about?

stand in front of car , remove engine cover , look left at top of engine theres a breather hose that clips into a corrugated type hose listen for it sucking air , theres a smaller breather hose on the other bank check that too.

down load some info on the engine to see diagrams

can't seem to find any diagram of the engine its not on rave

it wont be on RAVE, rave is for 2002-2005....... try the 2006-2009 WM... ... - .- -.




Y. O. L. O.
.

i Am being stupid. WM? Do you mean workshop manual, I will have to try and find a copy.

Here you go, it's in the WIKI...

http://api.viglink.com/api/click?format=go...VNfUHlXRUE Pete
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thanks