PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

SUPER Rich Idle

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Old Jun 15, 2006 | 04:45 AM
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Default SUPER Rich Idle

I have a 00 FRC Vette w/ A&A P1SC kit and the car was tuned at ECS... I got HP cause I was having some knock issues and the idle is really rich...


How do I go about lowering the fuel for idle?? I did a search and there was a couple of ways but I don't quite understand...

Also I have 42# green top injectors and the MAF has been re-scaled...
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Old Jun 15, 2006 | 07:07 AM
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What are ALL of your mods, I'm going to bet you don't have CATS...

Bill
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Old Jun 15, 2006 | 12:23 PM
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Yeah Cats are gone....


Long Tube Headers
LS6 Intake
218/222 .555/.565 114 SLP Cam
Aluminum Flywheel/ SPEC III clutch

everything else is suspension mods....

where could i upload my current BIN file so someone could take a look at it?
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Old Jun 15, 2006 | 02:00 PM
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You need to decrease the PE table in the idle RPM's. Have the 42lber's been re scaled yet?
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Old Jun 15, 2006 | 04:36 PM
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With zero throttle he likely isnt in the PE table anyway!? Dont you mean VE table?
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Old Jun 16, 2006 | 04:45 AM
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yeah i have re-scaled the MAF to the 42lb injectors
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Old Jun 16, 2006 | 10:40 AM
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what is super rich at idle?

what does the WB read?
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Old Jun 16, 2006 | 11:04 AM
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Yeah VE can be pulled back some at idle, what fuel trims are you getting at idle?

If the cats are gone, make sure that COT (cat over temp) is disabled.

Chris
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Old Jun 16, 2006 | 01:39 PM
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i don't have a WB to check it out w/ the fuel trims are goin -12 at times
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Old Jun 16, 2006 | 03:13 PM
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You need to rescale IFR not the MAF table. Injectors wont affect the airflow into the engine. You should correct the maf based on actual airflow measured by a wideband % error or compared to a correctly tuned SD value etc.
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