Misfire and Lumpy Idle
Misfire and Lumpy Idle
I posted a link sometime ago ragarding my 1800 campaign having a misfire when the engine was neither warm nor cold.
From cold she'll run fine, when the engine has been left to cool, say for an hour or so and I start her again the engine runs rough.
The car has been in to the garage on Tuesday, the whipped the injectors out and cleaned them and sorted the emissions too, the engine then seemed to run a lot smoother but the problem with the rough has reoccured.
Any ideas??
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http://i169.photobucket.com/albums/u210/TheCampaigner/100_1444.jpgX2 1983 A REG EW CAMPAIGN In WHITE(Awaiting full rebuild solid body) & T Reg S1 GTi Project, Still Looking for Series 1 GTi's or a 16S Oettinger to restore (Complete Cars only) or an A reg Lhasa Green or White Gti to restore, also consider Black, Red or Blue, Also Golf Driver Project Wanted anything considered WHY
The garage tested them and said they were working fine?? Checked the spray pattern etc.
If it was injectors would I not get the problem all the time??
Cheers
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http://i169.photobucket.com/albums/u210/TheCampaigner/100_1444.jpgAs anyone used Magnecor leads, are they any better than standard ones??
Cheers
Jamie
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http://i169.photobucket.com/albums/u210/TheCampaigner/100_1444.jpgCheers,
Ross
(What happens is, when the engine is cold, any leak has already leaked into the cylinders and seeped down into the oil, the system pressure has dropped off and there's no fuel in the cylinders to make it start/run rough. When its just been turned off, not enough time has elapsed for the leak to affect the startup).
The garage said the injector for no.4 cylinders spray pattern was poor, they also said no.4 plug was very wet, so you'd think injector.
The lump idle can stay for about 5mins or so after starting from warm, would this still happen if it was the injector??? maybe its not vaporising the fuel properly??
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http://i169.photobucket.com/albums/u210/TheCampaigner/100_1444.jpgWill try some new HT leads and then look at the injectors if the problem persists!
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http://i169.photobucket.com/albums/u210/TheCampaigner/100_1444.jpgLong shot but it might help.
1983 Lhasa Green GTI
The car has new plugs fitted so hopefully this will sort it???
Just a quick update, the car has now started to misfire all the time very slightly whilst the rev's are low, will have to wait for the parts to arrive and keep those fingers crossed!!!
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http://i169.photobucket.com/albums/u210/TheCampaigner/100_1444.jpgI cant believe they've stopped making them. Maybe the genuine ones have been stopped but I'm sure tey should have been able to supply Quantum ones. Anyway, the Bosch ones should be great!
If the leads are breaking down you might be able to see sparks arching if you take a look in the engine bay at night while the engine's running.
Cheers,
Ross
My Bosch leads never transpired, they had ordered the wrong ones! So I decided to order a set of Magnecor 8.5mm Leads (had these on my MX5 and really noticed a difference). The only problem is they are mail order so having to put up with the misfire which is now constant when below about 2000rpm.
I have checked under the bonnet at night, cant see any sparks but get this is no guarantee that they are OK.
I'll wait patiently for the new ones to arrive!!!!!
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http://i169.photobucket.com/albums/u210/TheCampaigner/100_1444.jpg1983 Lhasa Green GTI
I've actually got some Iridium plugs in there, lets hope the new leads allow them to show their true colours cos at the mo I aint very impressed!!!
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http://i169.photobucket.com/albums/u210/TheCampaigner/100_1444.jpgThe Campaigner said
I have checked under the bonnet at night, cant see any sparks but get this is no guarantee that they are OK.
Yeah I dont think that test is conclusive. I've never seen any!
X2 1983 A REG EW CAMPAIGN In WHITE(Awaiting full rebuild solid body) & T Reg S1 GTi Project, Still Looking for Series 1 GTi's or a 16S Oettinger to restore (Complete Cars only) or an A reg Lhasa Green or White Gti to restore, also consider Black, Red or Blue, Also Golf Driver Project Wanted anything considered WHY
Filler neck is intact but thanks for the advice.
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http://i169.photobucket.com/albums/u210/TheCampaigner/100_1444.jpglumpy running
Xsara Vtr (metalic sunset !!!)
Nissan Primera SRI Lpg (its cheap to run ok!)
Badboy Air Freshener (smells like a bag of Mixed
Sweets !!!)