Mr B Posted December 25, 2016 Share Posted December 25, 2016 Time for a specialist and bit of diagnostics. Could be as simple as a small air leak, other things such as O2 sensor TPS maf/map could all be possible. Have seen air leaks trigger the egr codes so good area check as work through it . Doubt it anything major but Subaru specialist look over from basics to in depth scoping if needed could pin it down fairly quickly compared to someone less experience in the brand . 1 Quote Link to comment Share on other sites More sharing options...
Hughieboy Posted December 25, 2016 Author Share Posted December 25, 2016 Then that's what I'll do in the New Year. Will report back when I have it sorted. Quote Link to comment Share on other sites More sharing options...
Hughieboy Posted January 2, 2017 Author Share Posted January 2, 2017 Further update Mr B! The trip to Wales almost went without hitch..... 500 miles nearly still with the issues previously mentioned then suddenly, 60 miles from home on the M42 it lost power.... it was like it was suddenly only firing on 1 or 2 cylinders. Pulled onto hard shoulder, let it cool, nothing. Called the AA. They recovered us to a services rather than straight home and sent someone out to 'assess' it. He knew not much about Subarus however he disconnected the MAF sensor and it started. He drove it round the car park as did I but it still seemed a bit spluttery so we opted for recovery home (broke down at 2pm, finally recovered at 8.30!) Anyway, with this MAF thing in mind, this morning I removed it and sprayed it with electrical cleaner a few times to clean it up. The leading edge of it looked a bit brown and tarnished but after a few sprays looked shiny so I re fitted it. Started up and ran better than ever! Went for a spin round the village and the splutter it has had seemed to have gone so there was obviously a problem here. I was very low on fuel so drove to the petrol station. The guy I bought it from told me that for some reason 'it doesn't like being below a quarter tank of fuel' and it did cough and splutter a bit on the way, I hadn't had the tank this low before. Anyway, I filled it up with super unleaded and after a couple of miles it was running better than it ever has! Still not 100% but far better than before. On the strength of this I have bought a new MAF sensor as it was obviously problematic and although I've cleaned it I thought it better to replace it as it may be faulty. Which leaves me with the low fuel issue. I am now wondering whether for the sake of £70 I should change the fuel pump. As it has an 'in tank' fuel filter I imagine that has probably never been changed and if I'm taking it out I can't help thinking it would be as well to change the whole pump for one of the aftermarket ones as the car has done 94,000 miles. Have you any opinion on this or whether this might cause low fuel issues? I realise it might still need to go in to a specialist at some point if these fixes fail but as this MAF cleaning has made such an improvement I'm kind of happy to spend my money on parts and save myself some labour costs as long as I'm not wasting my time.... Quote Link to comment Share on other sites More sharing options...
stants Posted January 2, 2017 Share Posted January 2, 2017 Fuel pump swap is easy, if you buy a pump it will contain a new in tank filter too, just need to remove the boot lining and fold down the rear seats, pop the hatch undo bolts and lift the whole unit out, Sent from my SM-G930F using Tapatalk 1 Quote Link to comment Share on other sites More sharing options...
Hughieboy Posted January 2, 2017 Author Share Posted January 2, 2017 I thought I might as well give it a try. Something is causing an issue when the fuel level gets a bit low.... Quote Link to comment Share on other sites More sharing options...
stants Posted January 2, 2017 Share Posted January 2, 2017 Just don't over tighten the bolts doing the tank lid back up, 😀 Sent from my SM-G930F using Tapatalk Quote Link to comment Share on other sites More sharing options...
Hughieboy Posted January 2, 2017 Author Share Posted January 2, 2017 Thanks, I'll bear that in mind! :-) Quote Link to comment Share on other sites More sharing options...
Mr B Posted January 3, 2017 Share Posted January 3, 2017 Sounds worthwhile having look at pump, pickup and filters. worth checking mounting position and pickup as most issues on low lank is pickup position related . Quote Link to comment Share on other sites More sharing options...
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