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Scion tC 1G Forced Induction Turbo and supercharger applications...

tuning help

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Old Nov 16, 2008 | 08:17 PM
  #1  
rozz-tC's Avatar
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Default tuning help

Im getting a bad stutter around 5500 rpms with pops and backfires, but during acceleration. The car is running rich in 3rd and up, but lean 1st and 2nd. Any ideas on how to even out the af/r's so all gears get the same. and how to fix either problem?

I'm using emanage ultimate w/ pressure sensor
innovate lc-1 for a/f
and 550's for injectors
Old Nov 16, 2008 | 11:31 PM
  #2  
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Default Re: tuning help

Originally Posted by rozz-tC
Im getting a bad stutter around 5500 rpms with pops and backfires, but during acceleration. The car is running rich in 3rd and up, but lean 1st and 2nd. Any ideas on how to even out the af/r's so all gears get the same. and how to fix either problem?

I'm using emanage ultimate w/ pressure sensor
innovate lc-1 for a/f
and 550's for injectors
when was the last time you changed your plugs? sounds like you may be getting some spark blow out.
Old Nov 16, 2008 | 11:54 PM
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got then before i started tuning, i have prolly 3 or 4 hours of street tune on them, but i was really rich to start, ill pick up a new set tomorrow and see how they work.

will that cure the rich in 3rd and 4th while lean in 1st and 2nd problem?
Old Nov 17, 2008 | 02:21 PM
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proly not ... you might have a leak to ... you might wanna check it out... y t3 gasket was leaking and it did that... also ur plugs are a good idea... might wanna thing about retuning
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