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Author erratic idle
AK
Member

Registered: 5th Jul 00
Location: Aberdeen City
User status: Offline
12th Mar 04 at 18:02   View User's Profile U2U Member Reply With Quote

i fitted new plugs today (6x NKG Iridium BCPR6EIX-11's )

see http://skylineowners.com/forums/sho...69436#post69436 for initial prob

and quote

changed the plugs.....and oil

Had a mare of a time with the plug on No3 the ceramic was all cracked and stuck down the hole bitty.... I was 90% sure i had it all out before removing the plug and fitting the new iridium.

changed the oil after that, then went to start the car....

Ran like it was not firing on all cly.... very lumpy. Cut off. Went and checked all connections/hoses etc, all looked fine... restarted.... still like a bag of nails... (at this point i was thinking that a big lump of the ceramic had fallen into the engine )

let the car idle for a while.... gave it some part throttle.... seemed to clear its self up

i'll see what its like from cold again later on

the car is now running fine on throttle, boost is ok etc...

BUT when coming to a halt from in gear... say pulling up to lights etc. The car is cutting out more easily than it used to (blitz BOV) and on occaision the revs are hunting (going from 500 to 800 for about 10 secs before settling again...

any ideas?

Are the std electrode gaps on NKG Iridium BCPR6EIX-11's ok? I never checked them... are they 1.0 or higher or 0.8 (1.0 is std nissan spec yeah?)

Does it sound like an vacuum leak to you?

Colin
Member

Registered: 4th Apr 02
User status: Offline
12th Mar 04 at 18:03   View User's Profile U2U Member Reply With Quote

I got no idea

Dosnt sound good tho

[Edited on 12-03-2004 by Colin J]
MarkM
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Registered: 11th Apr 01
Location: Liverpool
User status: Offline
12th Mar 04 at 18:40   View User's Profile U2U Member Reply With Quote

Idle control valve....the bain of all vauxhalls...
MarkM
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Registered: 11th Apr 01
Location: Liverpool
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12th Mar 04 at 18:40   View User's Profile U2U Member Reply With Quote

Marc
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Registered: 11th Aug 02
Location: York
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12th Mar 04 at 18:42   View User's Profile U2U Member Reply With Quote

Its a nissan tho
MarkM
Member

Registered: 11th Apr 01
Location: Liverpool
User status: Offline
12th Mar 04 at 18:44   View User's Profile U2U Member Reply With Quote

Yes I am aware of that...just linking it to the vauxhall site...tut tut tut marc....

I think the nissan spec quote gave the skyboat away....
DAYZEE
Member

Registered: 13th Nov 00
Location: Stevenage, MR2 Turbo, 328i Coupe, CBR600F
User status: Offline
12th Mar 04 at 18:46   View User's Profile U2U Member Reply With Quote

Doesn't sound like a vacuum leak, that would be there even when warm?
Perhaps the new plugs are 'too much' for the old leads. Does the Skyline have a diz cap? I'd change that first, my MR2 had a shitty idle until I changed the diz cap then all was fine.
AK
Member

Registered: 5th Jul 00
Location: Aberdeen City
User status: Offline
13th Mar 04 at 18:52   View User's Profile U2U Member Reply With Quote

what a day

cleaned AFM, TB, hoses pipes etc...

seemed to fix the idle...

BUT went back to the 'running like the corsa' again (not running all clyn)

quick tear up of the engine resulted in me finding some dodgy connections to the plug on clyn 1.... gave them a good hidin.... and its running smooth again....

see how it goes tomorrow am.... Marge nearly got whipped up into being a 1/4 runner for tomorrow











AK
Member

Registered: 5th Jul 00
Location: Aberdeen City
User status: Offline
13th Mar 04 at 18:53   View User's Profile U2U Member Reply With Quote

also found no gasket on the std recirc DV
AK
Member

Registered: 5th Jul 00
Location: Aberdeen City
User status: Offline
13th Mar 04 at 18:54   View User's Profile U2U Member Reply With Quote

used liquid gasket to fix
mr c
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Registered: 31st Jul 01
Location: Northwest
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13th Mar 04 at 19:39   View User's Profile U2U Member Reply With Quote

looks like you could do with a new air filter too
3CorsaMeal
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Registered: 11th Apr 02
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13th Mar 04 at 19:47   View User's Profile U2U Member Reply With Quote

Have a look at the leads in the dark, and see it u can see any sparks leaping from them.....

AK
Member

Registered: 5th Jul 00
Location: Aberdeen City
User status: Offline
13th Mar 04 at 20:03   View User's Profile U2U Member Reply With Quote

there are no leads as such......

well, suppose you could can the wee rubber plunger bits leads
3CorsaMeal
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Registered: 11th Apr 02
User status: Offline
13th Mar 04 at 20:15   View User's Profile U2U Member Reply With Quote



what car is this?

i thought all cars had HT leads?
AK
Member

Registered: 5th Jul 00
Location: Aberdeen City
User status: Offline
13th Mar 04 at 20:18   View User's Profile U2U Member Reply With Quote

its does in a way...

all the plugs are powered from those little conectors .... then from the conectors to the plug via a wee rubbery plunger kinda thing

supra 2jz gte was the same
Rob H
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Registered: 28th Oct 00
Location: Staffordshire Drives: Astra SRi
User status: Offline
13th Mar 04 at 20:28   View User's Profile U2U Member Reply With Quote

Yup, no Distributor/coil pack, as each cylinder has its own little coilpack. Same as on the 1.2 16v's and 1.0's actually .
AK
Member

Registered: 5th Jul 00
Location: Aberdeen City
User status: Offline
13th Mar 04 at 21:31   View User's Profile U2U Member Reply With Quote

Stockerov - if you read this

Cutting out due to BOV is now alot better .... hasnt happened since cleaning the AFM and throttle body with carb cleaner...

maybe should have used the super strength you bought instead

 
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