emission control system light on dash

Discussion in 'Tech/Mech General' started by 2dogs, Dec 7, 2014.

  1. 2dogs

    2dogs Funster

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    Hi all,

    Driving home today after a couple of nights away, the warning light that looks like a gearbox on the dash lit up. The manual says it is emission control system fault, get it checked out be dealer ASAP.

    Its a Pug 2.2 lt, The light came on last year during a trip but after stopping and engine off for 20 minutes, never lit again until now.

    Is this a major issue?

    Cheers
    2dogs
     
  2. TheBig1

    TheBig1 Funster Life Member

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    could be the egr valve sticking. it controls the exhaust gas recirculation so the engine burns cleaner.....can be very expensive. best plug in an OBD II reader and check the fault codes
     
  3. tonyidle

    tonyidle Funster

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    EGR doesn't make the engine run cleaner - quite the opposite. Exhaust gas fed back into the inlet manifold eventually clogs it up with grease and soot and reduces performance. Take the inlet hose off any Diesel engine with a few miles on the clock and you'll see what I mean. Exhaust gas fed back to the engine cools the burn and reduces nitrous oxide emissions so it's not all bad but it is at a cost to the long-term well-being of the engine. The ECU-controlled EGR valve ensures that exhaust recirculation is only allowed to happen under certain conditions (in general at cruise on a fully-up-to-temperature engine).
     
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  4. bungy

    bungy Funster

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    Wack some redex in or fill up with premium diesel and go for a good run and keep the revs up...if that doesnt fix it then have it checked out

    Happened to me 3 times in the last couple of years, twice this year, and the above sorted it each time.

    Some possibles are poor fuel, letting the fuel level get too low ( I was down to 20miles left on the last 2 occasio s) and stalling(according to our friendly mechanic)
     
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  5. John Laidler

    John Laidler Funster

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    It could be coming on for many reasons, as the others have said. It happened to me and it turned out to be a poor electrical connection.
    I can only suggest giving it a good blast, ideally including a few hills. If that doesn't work it needs to be looked at.
     
  6. SteveandSue

    SteveandSue Funster

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    We had same - searched lots of different forums -discused with NE van & trucks who wanted to charge to stick it on their computer to read codes.
    Looked at all suggestion about red ex - diconnecting battery - buy a code reader etc etc etc
    Did nothing - light went out - aint come back on again
    If it aint broke don't fix it I think?
     
  7. mitzimad

    mitzimad Funster

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    ours comes on after a stall and gives an error code for fuel regulator but then clears after a coupleof restarts
     
  8. 2dogs

    2dogs Funster

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    Thanks for all the replies,
    I've never stalled her and never gone below 1/4 full fuel tank.
    I have been driving her like an old far.... conservatively:whistle:, keeping revs down etc, maybe too much.

    I'll take her for a good blast sometime next week and see what happens.

    Cheers
    2dogs
     
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  9. TerryL

    TerryL Funster

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    Yup,that's your problem. Drive it like you stole it for half an hour. That's what the MoT testers do if they have a problem with the emissions...or that's what my local garage told me!
     
  10. 2dogs

    2dogs Funster

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    Thanks Terry,

    drove her like a car for first year, no probs, mpg was about 32-33, this last year, low revs, early change up etc,
    mpg now around 35-36+.
    Best grow younger and put my foot down (y)

    Cheers
    2dogs
     
  11. TerryL

    TerryL Funster

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    You only have to do it occasionally, when the motor is nice and hot is when the system purges itself. I also chuck a can of diesel additive in every now and again.
     
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