spankyjames
Member
Registered: 26th Jun 06
Location: Corsham, Wiltshire
User status: Offline
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hi what setting should the octane plug be a late type xe A or B
cheers
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Torsa g
Member
Registered: 20th Sep 07
Location: Tamworth. Rides: An OSTRIDGE
User status: Offline
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mine says 95 or 98, which is the ron, so ive put mine on 98 and seems sound
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Jam666
USER UNDER INVESTIGATION - DO NOT TRADE
Registered: 22nd Mar 08
Location: South Wales Drives: Corsa XE
User status: Offline
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ye but are u using super unleaded or shell optimax?
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pow
Premium Member
Registered: 11th Sep 06
Location: Hazlemere, Buckinghamshire
User status: Offline
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optimax 
V-power now isnt it? 
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Olsrey
Member
Registered: 13th Jan 07
Location: Bradford Drives: LET Vectra B
User status: Offline
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Should be on A.
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alan-g-w
Member
Registered: 9th Nov 07
Location: Glasgow
User status: Offline
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quote:
Originally posted by Olsrey
Should be on A.
So is that 95 or 98 RON?
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Ste L
Member
Registered: 3rd Jul 06
Location: Manchester Drives: 106 16v Rallye
User status: Offline
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On the C/20XE the brown plug is NOT a ron plug, its a ecu MAP plug it has two seting A and B, setting A is the better setting leave it on that and forget you ever saw it.
all it does is regulate between 2 fuel maps one is a "quiet" map and gives reduced performance (side B) and one is increased noise(side A).
the XE has a knock circuit so it detects which fuel is being used and adjusts the timing accordingly.
If you put the plug to the B position your car will idle in low rpm's.
If you put the plug to the A position your car will idle with little more rpm's
If you take off the plug you car will idle in higher rpm's than A side.(infinity resistance)
The best position is the A side, but whatever position you choose the most likely is to see no difference in performance. Only on car idle's.
I think A side have 470ohm resistance, B side 220 ohm resistance.
[Edited on 12-09-2008 by Ste L]
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alan-g-w
Member
Registered: 9th Nov 07
Location: Glasgow
User status: Offline
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How do you know what side it's set at? The side with the clip on it or the other?
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Olsrey
Member
Registered: 13th Jan 07
Location: Bradford Drives: LET Vectra B
User status: Offline
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Side with the clip.
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Vaux Lad
Member
Registered: 15th Dec 04
Location: Stoke-on-Trent
User status: Offline
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As ste said, it aint a ron plug.
Leave it on its original side
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