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Old Apr 1, 2009 | 12:39 PM
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Default colder plugs

just recently install some one-step colder plugs and now the car starts sluggishly, idling roughly jumping and falling until it picks up later but drives normal, just wondering is that normal for colder plugs or did i do something wrong, thanks
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Old Apr 1, 2009 | 12:59 PM
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We need more info on your car...What ems, FI, etc..... Did you leave the gap the way they came? Also what plugs did you use and part # ?
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Old Apr 1, 2009 | 01:18 PM
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Probably switched around 6 and 4 cylinders.
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Old Apr 1, 2009 | 08:54 PM
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Originally Posted by coachk
We need more info on your car...What ems, FI, etc..... Did you leave the gap the way they came? Also what plugs did you use and part # ?
vortech supercharger with a reflash by technosquare and yes i left the gap the way it came in it was ngk's LFR6AIX-11
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Old Apr 1, 2009 | 08:55 PM
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Originally Posted by Jeremy@Altered
Probably switched around 6 and 4 cylinders.
i did each cylinder at a time
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Old Apr 1, 2009 | 08:56 PM
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i also did just install some 550cc injectors so could this have any conflict
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Old Apr 1, 2009 | 09:15 PM
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550cc injectors are the problem.
The car needs to be dyno tuned now with -HKS / UTEC / HALTEC -ect.
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Old Apr 1, 2009 | 09:26 PM
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so the reflash does notin for the injectors

Last edited by balla33; Apr 1, 2009 at 09:31 PM.
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Old Apr 1, 2009 | 09:32 PM
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Did you reflash ECU after installed injectors? or before?
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Old Apr 1, 2009 | 10:02 PM
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yea just got my ecu back yesterday tuned for 550cc injectors from technosquare
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Old Apr 2, 2009 | 12:09 AM
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your tune is off, do you have an afr gauge? probably your combustion mixture is flooded with fuel.
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Old Apr 2, 2009 | 04:01 AM
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Originally Posted by balla33
i also did just install some 550cc injectors so could this have any conflict


that was the important part you left out, car has to be tuned.
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Old Apr 2, 2009 | 10:10 AM
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Originally Posted by wannabuy350z
your tune is off, do you have an afr gauge? probably your combustion mixture is flooded with fuel.
no afr gauge
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Old Apr 2, 2009 | 10:18 AM
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Try contact with technosquare, do you have any ems running with? You running bigger injectors, i don' tknow it will be ok just get the reflash.

chefj
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Old Apr 2, 2009 | 10:37 AM
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retune and set the plug gap lower too.
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Old Apr 2, 2009 | 12:01 PM
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Originally Posted by 350 Rookie
retune and set the plug gap lower too.
how much lower? its claims to come around .40-.44 which is perfect for our engines
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Old Apr 2, 2009 | 12:05 PM
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You shoulda atleast checked the gaps. When im FI, i gap them to around .32.
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Old Apr 2, 2009 | 12:07 PM
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wow....

s/c and no tune? no a/f gauge ? and then 550cc ?

step away from the vehicle !!!
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Old Apr 2, 2009 | 12:29 PM
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Originally Posted by Tac-M
wow....

s/c and no tune? no a/f gauge ? and then 550cc ?

step away from the vehicle !!!
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Old Apr 2, 2009 | 08:12 PM
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wow ecu reflash = TUNED
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