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miss under long and heavy throttle loads

 
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Old 17 Oct 2005, 07:46 pm
Cool Cruiser
  
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Default miss under long and heavy throttle loads
hi - i have an engine miss at long and heavy throttle loads (passing gear mode at around 5-6,000 rpms). i'm hoping it may be a bad spark plug wire and not a TPS, MAP and/or O2 Sensor(s) issue. it's a '03 turbo gt with only 15K miles on the clock. anyone experience this type of engine miss?
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Old 18 Oct 2005, 12:06 am
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Yes and willing to bet it is your spark plug wires. Mine went bad at 12k miles.
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Old 18 Oct 2005, 02:15 am
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Quote:
quote:Originally posted by Fodder4U

Yes and willing to bet it is your spark plug wires. Mine went bad at 12k miles.
on that note [^]- i just ordered a set of Magnecor 8mm Blue Ignition Wires. i'll let you know if these do the trick. if not - it's going to the dealer[xx(] many thanks.
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Old 18 Oct 2005, 04:00 am
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Quote:
quote:Originally posted by pppt03turbo

Quote:
quote:Originally posted by Fodder4U

Yes and willing to bet it is your spark plug wires. Mine went bad at 12k miles.
on that note [^]- i just ordered a set of Magnecor 8mm Blue Ignition Wires. i'll let you know if these do the trick. if not - it's going to the dealer[xx(] many thanks.
Had a high rpm miss in my '03 GT. Gapped plugs at .040 and it went away. New wires is a very good thing, too.
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Old 18 Oct 2005, 09:29 am
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Please post whether wires cure it - I'll bet they do.
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Old 18 Oct 2005, 08:18 pm
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I've been plagued by the miss and can't cure it. I've had Magnecor wires on it for about a year now. I've changed plugs once and have changed the gap, but nothing works for me.
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Old 19 Oct 2005, 02:50 am
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There was a TSB for a high rpm miss, too.
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Old 19 Oct 2005, 02:50 am
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Quote:
quote:Originally posted by quicksilverdon

Please post whether wires cure it - I'll bet they do.
sure - will do. i ordered them through revel enterprises. i hope they arrive sooner than later.

btw: with help from this site, i removed that goofy white air box silencer. i have to say, the motor actually has a bit more zip - and the new throaty sound - is killer.
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Old 22 Oct 2005, 01:34 am
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the new magnecor wires solved 85% of my high rpm miss. i guess i'll do the spark plugs next. go with platinums???

as mentioned in this site's archives, these wires do yield a smoother idle and better throttle response. overall - i'm happy i got them.

if anyone out there is on the fence about buying a set of these magnecor wires - you should go for it. they are worth the price.
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Old 22 Oct 2005, 02:14 am
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Quote:
quote:Originally posted by pppt03turbo

the new magnecor wires solved 85% of my high rpm miss. i guess i'll do the spark plugs next. go with platinums???

as mentioned in this site's archives, these wires do yield a smoother idle and better throttle response. overall - i'm happy i got them.

if anyone out there is on the fence about buying a set of these magnecor wires - you should go for it. they are worth the price.
Do not use platinums in a turbo. A turbo runs too hot. Platinums are excellent in a n/a PT. I used factory Copper Plus gapped at .040. Others are using Irridium plugs but they are spendy and there is no benefit to performance.
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