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Slight misfire, no eml...



P

PP200t

  2014 Clio 200t edc
Switched the lambdas over today (before I buy/borrow a compression tester) and it's exactly the same. Would the car need time to adjust or realise it's got a better reading from the lambda or would it be instantaneously better?
I also had the plugs out, they are the correct ngk plugs and look ok, don't look fowled up or anything. Still no code on the reader or eml. it runs, just doesn't idle perfectly and you can feel slight hesitation while driving. Oh and the mpg is shocking. (Not only on the obc)
 
jamesycc

jamesycc

PP172 said:
Switched the lambdas over today (before I buy/borrow a compression tester) and it's exactly the same. Would the car need time to adjust or realise it's got a better reading from the lambda or would it be instantaneously better?
I also had the plugs out, they are the correct ngk plugs and look ok, don't look fowled up or anything. Still no code on the reader or eml. it runs, just doesn't idle perfectly and you can feel slight hesitation while driving. Oh and the mpg is shocking. (Not only on the obc)
Click to expand...
injectors is my guess. One or more is on its way out.
 
P

PP200t

  2014 Clio 200t edc
Cheers @jamesycc The engine note definately changes when you unplug them one by one though which suggests not. Do you know how to actually remove them?
 
jamesycc

jamesycc

PP172 said:
Cheers @jamesycc The engine note definately changes when you unplug them one by one though which suggests not. Do you know how to actually remove them?
Click to expand...
remove the fuel guard rail at the front, 2x10mm nuts. Go steady as the studs can shear off. Wiggle it off and now you have access to the injector rail. Unplug each one. Disconnect the fuel line, on your left as you look at it. Its a squeeze and pull jobby. Do it wrapped in some rag as you'll get a bit of fuel squirt out. Then its just 2 10mm bolts at the front. Once they're out its a bit of wiggle and pulling, gently so youdont crack the plastic rail. Once its off you'll just need a flat blade screwdriver to pop the little metal.clips upwards and the injector should pull out with moderate force. It'll take you about 20 mins. Don't rush and remember to plug the fuel line back in before youcrank it over otherwise you'll be pumping fuel all over the place!
 
STEVE.M

STEVE.M

  PH2 172
PP172 said:
I also had the plugs out, they are the correct ngk plugs and look ok, don't look fowled up or anything. Still no code on the reader or eml. it runs, just doesn't idle perfectly and you can feel slight hesitation while driving. Oh and the mpg is shocking. (Not only on the obc)
Click to expand...

If it`s not running correctly, at least 1 of the plugs should be a different colour.
Have a look through some you tube videos on plug colour.


What`s the MPG on the trip computer & how far are you driving it?
Have you checked the air filter is not clogged?
And get that compression test done
 
P

PP200t

  2014 Clio 200t edc
Thanks mate.
The spark plugs looked normal comparing them with the YouTube video you've linked @STEVE.M (normal as ngk describe them, no sooting up or burnt marks.) all plugs were the same too.
Mpg is around 30 on the obc but actual is about 25, that's driving normally varied speeds and a 9 mile trip either way to and from work. Fast stretches and then 30 stretches.
Air filter doesn't appear blocked and the engine runs the same if the airbox is disconnected too. I'm going to have to check the injectors too I think. Maybe they aren't firing properly. Do you need to disconnect the fuel rail to check the spray pattern? Or just pull them out? At least two of them look newer or in better condition than the others so maybe the older ones are dying?
 
jamesycc

jamesycc

PP172 said:
Thanks mate.
The spark plugs looked normal comparing them with the YouTube video you've linked @STEVE.M (normal as ngk describe them, no sooting up or burnt marks.) all plugs were the same too.
Mpg is around 30 on the obc but actual is about 25, that's driving normally varied speeds and a 9 mile trip either way to and from work. Fast stretches and then 30 stretches.
Air filter doesn't appear blocked and the engine runs the same if the airbox is disconnected too. I'm going to have to check the injectors too I think. Maybe they aren't firing properly. Do you need to disconnect the fuel rail to check the spray pattern? Or just pull them out? At least two of them look newer or in better condition than the others so maybe the older ones are dying?
Click to expand...
you'll need yo whip the rail off to check. Get a piece of cardboard inbetween them and the engine crank it over and you'll have a pattern to look at. If its really obvious you'll see it but tbh it doesn't tell you much. The only of knowing is to swap em out or you get a fault code. When my crappy idle was playing up I just swapped one of the 2 I hadn't replaced out one at a time to see what would happen, sure enough I had a failing injector as opposed to it being broken altogether. Be useful to try some used ones if you can as start, if not then buy a new one and try one at time to see if the misfire goes.
 
P

PP200t

  2014 Clio 200t edc
Well unplugging them one by one changes the engine note every time so I doubt it's that. I'm starting to get annoyed with it now.
 
P

PP200t

  2014 Clio 200t edc
I've tried to capture it on video (in the dark, with an ipotato...)
Its more audible from the exhaust towards the end but I wasn't going to mess about with trimming. I could just about work out uploading it. Lol

@STEVE.M @jamesycc
 
STEVE.M

STEVE.M

  PH2 172
PP172 said:
Thanks mate.
The spark plugs looked normal comparing them with the YouTube video you've linked @STEVE.M (normal as ngk describe them, no sooting up or burnt marks.) all plugs were the same too.
Mpg is around 30 on the obc but actual is about 25, that's driving normally varied speeds and a 9 mile trip either way to and from work. Fast stretches and then 30 stretches.
Air filter doesn't appear blocked and the engine runs the same if the airbox is disconnected too. I'm going to have to check the injectors too I think. Maybe they aren't firing properly. Do you need to disconnect the fuel rail to check the spray pattern? Or just pull them out? At least two of them look newer or in better condition than the others so maybe the older ones are dying?
Click to expand...
OBC 30 mpg is not that out of order for that journey, especially if you leaving it ticking over while you defrost or scrape the ice off the glass.
It`s taking mine 5 miles from start up to get up to temperature some mornings at the moment.
If all the plugs are the same colour, you probably have not got a problem.
The correct plug is NGK PFR6E-10.
I have not changed them since I bought the car 3 years ago, so it`s on my to do list in the spring.
Regarding the electrical fault light, get the codes read, but take the readings with a pinch of salt, as it`s as likely to be a wiring fault as an actual component failure.
Good luck.
 
P

PP200t

  2014 Clio 200t edc
Thanks @STEVE.M
There are no lights on the dash now at all. Nothing scanning on the code reader either. It's more the running that's not right. It's not so much a misfire but hiccup if that makes sense and you can hear it in the video above.
 
P

PP200t

  2014 Clio 200t edc
It's definately hiccuping on idle and you can feel it slightly hesitating when your driving. On the video you can hear it from the exhaust, it's like a spitting noise
I'm in Staffordshire.
 
jamesycc

jamesycc

sounds like mine did tbh. A bit rough and lumpy, more than usual and the slightest little popping sound at the exhaust. Is it quite Smokey on tick over, alot of cloud coming out the exhaust as that's what mine was like.
 
P

PP200t

  2014 Clio 200t edc
@jamesycc Yeah now you mention it it is a little. Was yours hesitating slightly when driving and changing gear etc? It pulls fine and goes well though.
 
STEVE.M

STEVE.M

  PH2 172
PP172 said:
It's definately hiccuping on idle and you can feel it slightly hesitating when your driving. On the video you can hear it from the exhaust, it's like a spitting noise
I'm in Staffordshire.
Click to expand...

They do tend to pop & bang into the exhaust on overrun when cold, especially if its stainless, and can be hesitant on cold start.
If you are convinced there is something wrong, replace the plugs as a maintenance item & try @cs_dave or @midge or @jezer101 for a set of injectors, no harm in having some spares.
If that does not cure it, a trip to Mick at Diamond Motors in Long Eaton might be on the cards.
 
jamesycc

jamesycc

PP172 said:
@jamesycc Yeah now you mention it it is a little. Was yours hesitating slightly when driving and changing gear etc? It pulls fine and goes well though.
Click to expand...
At speed it wasn't too noticeable but it felt as if something was a miss. Having owned for over 2 years I know it well so knew it wasn't quite right. It would feel like it was gonna stall at stops and just felt a tiny bit hesitant when accelerating and more Smokey on start up and idle.
 
Rojer

Rojer

ClioSport Club Member
STEVE.M said:
I`ve just realised you have only had the car for 2 weeks.
Put £20 of 98/99 Ron in it & go & use it all in one drive.
@PP172
Though probably not tonight.
Click to expand...

Good shout, i have only had mine 2 weeks and it was ran on a budget. I have gone through a few tanks of vpower now and runs better.
 
Rojer

Rojer

ClioSport Club Member
@PP172 Why do you want to sell it for lol? What colour is the smoke and is it on idle, when reving etc, how much smoke is it?
 
Rojer

Rojer

ClioSport Club Member
@PP172 So then the first thing i would do it stick some VPower in, then check plugs, leads, coil pack and then injectors. To get the injectors cleaned in that group buy its really cheap so well worth a go.
 
Louis

Louis

I Park Like a C**t
ClioSport Club Member
The injector cleaning is worthwhile regardless, and dan would be able to tell during the pulsing of it whether it was actually dying or not. Either that or take it to a specialist and see what they have to say, but it will end up being £££ regardless.
 
Rojer

Rojer

ClioSport Club Member
Also when you say you swapped the lambda was it a new one? If not are you sure that one is working? Have you changed the switch from the other code now or has that not come back?
 
B

bloke

  dan's cast offs.
and getting the injectors cleaned is a waste of money especially as you don't even know the history of them.
 
Rojer

Rojer

ClioSport Club Member
bloke said:
and getting the injectors cleaned is a waste of money especially as you don't even know the history of them.
Click to expand...

I agree looking at live data is the best way forward, however for the sake of £20 or whatever it is to clean the injectors it won't do no harm.
 
P

PP200t

  2014 Clio 200t edc
Rojer said:
Also when you say you swapped the lambda was it a new one? If not are you sure that one is working? Have you changed the switch from the other code now or has that not come back?
Click to expand...
I swapped them front to back as the front lambda was showing an active fault on the code reader and I figured it wouldn't hurt to switch them. I wonder if the change if there was to be one would be straight away or after a while. The lambda code hasn't come back though since resetting it which is strange.
The other issue throttle switch hasn't (touch wood) shown it's ugly head since so left it with cleaning the connectors. I'm beginning to wonder if the running is normal. I've had a 182 and a 172 and can't remember them running like this but maybe they did?
It's definately not the coilpack as I've tried a working one and it was no different. Northcuploop said it wasn't a misfire but a slight judder of sorts.
When I unplug the injectors each one affects the running of the car more or less the same as each other. Leads maybe.
 
STEVE.M

STEVE.M

  PH2 172
Rojer said:
@PP172 Why do you want to sell it for lol? What colour is the smoke and is it on idle, when reving etc, how much smoke is it?
Click to expand...
Thanks for your PM Ryan.
Looked at your progress thread.
Like your attitude.
You bought a neglected 182,straight in with getting the belts,dephaser,water pump done at ED & then I`ll go from there.
None of this I think I`ll sell it on because it wants £70 spent on it.
 
P

PP200t

  2014 Clio 200t edc
Mmm @STEVE.M that's an interesting thought and suggestion. Is that something that can be adjusted without the belts being changed? I know specialists can check it? I'll get in touch with someone and see if they can check it/adjust it if so.
 
STEVE.M

STEVE.M

  PH2 172
PP172 said:
Mmm @STEVE.M that's an interesting thought and suggestion. Is that something that can be adjusted without the belts being changed? I know specialists can check it? I'll get in touch with someone and see if they can check it/adjust it if so.
Click to expand...

I`d get it over to Long Eaton.
A lot of members make a high mileage round trip as he does a proper job at a very reasonable price.
 
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