P1009

Discussion in 'Honda K-Series' started by Whisker Version, Saturday 29th Sep, 2018.

  1. Whisker Version Club Member ★ ☆ ☆ ☆ ☆

    United Kingdom Bristol
    43
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    Hi all,
    My engine management light has come on for the second time in the last two months with code 'P1009', which I believe is something to do with the ECU believing the VCT oil pressure not being sufficient. Last time, an oil and filter change and fault code reset made it go away. This time, I've just reset the code, and it has stayed off on a long drive. The engine is a K20A 2.0 from 2005, but I'm not sure of the variant type.
    I'm intend trying to clean the VCT filter screen next, but I've two questions:
    1) the EML came on at exactly the same point in my journey as last time (coldish engine, booting the throttle to slip onto a fast dual carriageway). Could this be relevant?
    2) The engine appeared to have an erratic idle after the EML came on. When stopped at a junction, the car was trying to lurch forward (4-speed auto box). When I put it into 'park', the idle sat above 2000 RPM (engine now warmed up). I can't see why this would have occurred if just the VCT system had been disabled. It was more like a sensor fault, and the engine going into open loop mode. Is there any common-mode fault that could have caused both idle and VCT dropout problems?

    Cheers.
     
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  2. Beefy Club Veteran ★ ★ ★ ★ ★

    United Kingdom Stoke
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    the VTC oil controll solenoid is the likely culprit if there is an idle issue. this sits in the chain case secured by a 10mm bolt. however its common for the timing chain to stretch. eventualy causing the enigine no stop idling all together. best whip off the rocker cover and time it up to TDC and see if the cam timing is out. other than that you will tell how looked after the engine has been by the state of the inside of the rocker cover and the upper part of the eninge. if serving has been neglected you could be running into all sorts of issues.
     
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  3. Nighthawk Club Manager Club Staff

    Its good to have you back @Beefy :Grin:
     
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  4. Beefy Club Veteran ★ ★ ★ ★ ★

    United Kingdom Stoke
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    @Nighthawk I've always been here. The site has been a bit of a mess in all honesty. And a year away working on VW Commercial vehicles may have played its part
     
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  5. Whisker Version Club Member ★ ☆ ☆ ☆ ☆

    United Kingdom Bristol
    43
    15
    I meant to get back to this thread sooner. Thank you for your input. I had the PL1009 code and EML come on again, so I took the plunge and removed the VTC control solenoid a few weeks back since it is relatively quick job to extract it, and I cleaned it with brake cleaner. There was no debris on the screens, but since this I've not have a recurrence of the EML. I don't think I'll need to examine the other screens, which are a bit more involved to access. Putting the VTC solenoid back was a swine of a job, though, because there was so little room between the is it "front" of the engine and the wheel arch wall to get a hand in, and the special shouldered 10mm screw didn't help as as much as it ought to because it needed to protrude further. I ended up sliding a length of PE hose on the head of the screw in order to refind the hole and get the thread started and it took ages.
    The valve clearances are probably due a check, so at some point the rocker cover will need to come off, but, again, the space to work looks unpleasantly tight, with the engine being set so far back.
    engineTop2.
     
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  6. honda_saj Club Veteran ★ ★ ★ ★ ★

    United Kingdom saj east london
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    great job engine looks clean :salute:
     
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