MK5 Golf GTI
All Things Mk5 => How to Guides / Troubleshooting => Topic started by: northyracing on April 25, 2013, 03:23:41 pm
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I have posted numerous times about a lumpy idle but have now noticed that's its not all the time now so I got myself vag com and it shows a missfire on cylinder 2 but like only a few misfires I swapped cylinder 2 coilpack onto number 4 but still misses on 2 so that rules out the coilpack that's faulty any suggestions
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Swapped the spark plug?
If it still stays on that cyl, then injector...
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No I ain't tried that one actually I will try that next it only does it every now and again so hopefully it's a plug not injector
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As Mike says, try changing the plugs.
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Changed the plugs around from 2-4 and 1-3 and still gettin misfire on cylinder 2
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Changed the plugs around from 2-4 and 1-3 and still gettin misfire on cylinder 2
Mine has this on cylinder 4 on idle only.Causing cold start poor running and idle speed missfire.
it improoved recently with Terraclean and injector cleaner but its slowly coming back.
Car is at JKM currently being investigated.
Sounds like you have a possible injector failure like I think mine is.
Will know by tomorrow from JKM what's the fault is for deffo.
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I had the same issue on cylinder 3.
Only thing to cure it was a new injector. It was perfect after the new injector.
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I hope it's just that..Phylis sounds like a Subaru flat 4 from cold at the mo :sad1: rough as a badgers arse
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Mine only missis on idle and slow speeds then clears once above 2000rpm and runs sweet as a nut
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Mine only missis on idle and slow speeds then clears once above 2000rpm and runs sweet as a nut
Identical fault to mine. Totally fine on the road, upto 1800 rpm and below it missfire's.
Turn on the aircon, it improves, turn off the aircon, its misfires on average about 60 times a minute
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Mine always counted misfires a idle. The misfire under high load was very intermittent but was gradually getting worse.
It started as misfire at idle only.
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Bloody cars lol it's more annoying than actually being a problem one minute it's fine next it's like someone is rocking the car slightly
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Where do I go in vcds to see misfires?
It hasn't logged an error code...
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Mine logged in auto scan but also in basic measuring (blocks 14 & 15 from memory) the miss fire stopped counting when I pressed the throttle but its because detection was disabled when the throttle was pressed from what I could see
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I haven't heard of any K03 GTI injectors failing, just K04 engines.
I'm trying to sell a K03 injector as I bought one as a "just in case" :wink:
Graeme
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Mine logged in auto scan but also in basic measuring (blocks 14 & 15 from memory) the miss fire stopped counting when I pressed the throttle but its because detection was disabled when the throttle was pressed from what I could see
That sound just like mine when I had mine plugged in
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Mine logged in auto scan but also in basic measuring (blocks 14 & 15 from memory) the miss fire stopped counting when I pressed the throttle but its because detection was disabled when the throttle was pressed from what I could see
That sound just like mine when I had mine plugged in
Its blocks 15-16 are where you need to monitor :happy2:
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Mine logged in auto scan but also in basic measuring (blocks 14 & 15 from memory) the miss fire stopped counting when I pressed the throttle but its because detection was disabled when the throttle was pressed from what I could see
Sat with my car idle and watched these, cylinder 2 will show 3 misfire or 2 misfires then reset to 0 then pop upto 2 again.
Seems its possibly not my alternator after all. Going to swap spark plug/coilpack and fingers crossed it moves!
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Mine logged in auto scan but also in basic measuring (blocks 14 & 15 from memory) the miss fire stopped counting when I pressed the throttle but its because detection was disabled when the throttle was pressed from what I could see
Sat with my car idle and watched these, cylinder 2 will show 3 misfire or 2 misfires then reset to 0 then pop upto 2 again.
Seems its possibly not my alternator after all. Going to swap spark plug/coilpack and fingers crossed it moves!
It's apparently acceptable to have just a couple of cylinder misfires on these engines, but when it starts misfiring in as many in seconds, then its time to act :happy2:
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Mine logged in auto scan but also in basic measuring (blocks 14 & 15 from memory) the miss fire stopped counting when I pressed the throttle but its because detection was disabled when the throttle was pressed from what I could see
Sat with my car idle and watched these, cylinder 2 will show 3 misfire or 2 misfires then reset to 0 then pop upto 2 again.
Seems its possibly not my alternator after all. Going to swap spark plug/coilpack and fingers crossed it moves!
It's apparently acceptable to have just a couple of cylinder misfires on these engines, but when it starts misfiring in as many in seconds, then its time to act :happy2:
i have just read through your issues with idle and such, thinking of that terraclean.
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Mine logged in auto scan but also in basic measuring (blocks 14 & 15 from memory) the miss fire stopped counting when I pressed the throttle but its because detection was disabled when the throttle was pressed from what I could see
Sat with my car idle and watched these, cylinder 2 will show 3 misfire or 2 misfires then reset to 0 then pop upto 2 again.
Seems its possibly not my alternator after all. Going to swap spark plug/coilpack and fingers crossed it moves!
Mine does exactly the same as this can wait ages for a misfire then 3 will show then clear itself and its not all the time and sometimes worse than others depending on what the weathers like at the time
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Mine would rapidly count just past a 100 then reset. It may have started off slower & less frequent before I started scanning
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Mine would rapidly count just past a 100 then reset. It may have started off slower & less frequent before I started scanning
maybe not so bad then if i only get 3.
Ill video the noise and see what people think.
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So if its not plugs or could causing the misfire is it likely to be injectors, is there anyway to test them without having to take them out personally
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So if its not plugs or could causing the misfire is it likely to be injectors, is there anyway to test them without having to take them out personally
No unfortunately you can't, only rule out everything else, if fuel pump is ok, spark plugs moved, coils moved and maybe coil pack harness checked, then there isn't much else.
Apparently a tool is needed to remove them, so its a dealer or Vag specialist is recommended to do the work.
1 x injector and manifold seal kit and and labour with diagnostic is costing me circa £400.
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As far as I can see the fuel rail pressure is what it should be I swapped all the coils and plugs round and still cylinder 2 is the one vcds is logging as the missfire but its ever so slight and now and again driving me mad now
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As far as I can see the fuel rail pressure is what it should be I swapped all the coils and plugs round and still cylinder 2 is the one vcds is logging as the missfire but its ever so slight and now and again driving me mad now
When the cold start misfiring starts, then I would be looking at it more closely.
To improove it further, use the aircon :wink:
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What do you mean cold start missfire. I'm new to all of this lol, mine is just more annoying than a problem with it shaking on idle like a race cam in it and it just judders at low speed but perfect once revs are up. Don't know the route to go down either fix it or just forget about it and enjoy the car and maybe remap to see if it helps atall
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What do you mean cold start missfire. I'm new to all of this lol, mine is just more annoying than a problem with it shaking on idle like a race cam in it and it just judders at low speed but perfect once revs are up. Don't know the route to go down either fix it or just forget about it and enjoy the car and maybe remap to see if it helps atall
Your car will sound like a suburu flat 4 wrx engine when you rev it from cold morning start up. :signLOL:
Remap won't shift the misfire.
Fix it before remapping is my advice.
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What do you mean cold start missfire. I'm new to all of this lol, mine is just more annoying than a problem with it shaking on idle like a race cam in it and it just judders at low speed but perfect once revs are up. Don't know the route to go down either fix it or just forget about it and enjoy the car and maybe remap to see if it helps atall
Your car will sound like a suburu flat 4 wrx engine when you rev it from cold morning start up. :signLOL:
Remap won't shift the misfire.
Fix it before remapping is my advice.
Mine ain't that bad yet lol mine sounds sweet as a nut on cold start no missfire wat so ever it's only when she warms up she misses
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Just to update. Had injector 4 replaced today. Car is now Super smooth.
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So injector could be my problem
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So injector could be my problem
Yes
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In a way i hope it is I'm just worried in spending £400 and not fixing my problem wish a diagnostics would show the injector bein the problem
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In a way i hope it is I'm just worried in spending £400 and not fixing my problem wish a diagnostics would show the injector bein the problem
did you ever get it fixed?
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In a way i hope it is I'm just worried in spending £400 and not fixing my problem wish a diagnostics would show the injector bein the problem
Unfortunately injectors wont tell you that they are the issue. Only way is to accept it, is what people are saying and their own Experiences.
I was under the impression you had the tools to DIY and just the cost of said injector and manifold seal kit would be cost? :confused:
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I am going to try do it myself but if I can't do it I know a mechanic that can help me out but can't seem to find part numbers I need
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I am going to try do it myself but if I can't do it I know a mechanic that can help me out but can't seem to find part numbers I need
Use your local dealer, has ETKA and will get the part numbers for you :wink:
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Lovely will give that one a try. I have the injector part number found on eBay for a second hand axx injector sadly done close to 100k miles so just need gaskets numbers now and seal kit
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Lovely will give that one a try. I have the injector part number found on eBay for a second hand axx injector sadly done close to 100k miles so just need gaskets numbers now and seal kit
I wouldn't chance a 2nd hand injector!!!!! :confused:
Madness
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Oh I defiantly ain't going to I'm buying new only at least I know it's a decent one