Is there a parameter (A9L2) that can help reduce the amount of popping that comes out of my sidepipes on deceleration? Anytime I get off the throttle there is some loud exhaust cackling that sounds kind of like a squadron of Harley-Davidson's. I'm hoping to make better friends of my neighbors down the hill from my house!
Sean
ways to minimize decel POP?
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canuck1
- Posts: 67
- Joined: 2021 Mar 31, 17:29
- Location: Victoria, BC CANADA
- Vehicle Information: QH, TunerPro RT 5, GUFX_220418.xdf, A9L2_220405, DECIPHA_220505.ADX, 395w, AFR 195CC Renegade heads, Comp XE274HR cam, Siemens-Deka V 80lb/hr (shorties), Mass-Flo-EFI style 4bbl throttle body with GM maf on top. Custom long tube headers, sidepipes, 5 spd manual.
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decipha
- Posts: 5050
- Joined: 2021 Feb 15, 12:23
- Location: Metairie, LA
- Vehicle Information: Work Truck
'19 F-150 3.3L
Re: ways to minimize decel POP?
check fn111 the closed throttle spark and kick it up at the higher rpms
then the dashpot spark multiplier set anything lower than 1 to 1
then the dashpot spark multiplier set anything lower than 1 to 1
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canuck1
- Posts: 67
- Joined: 2021 Mar 31, 17:29
- Location: Victoria, BC CANADA
- Vehicle Information: QH, TunerPro RT 5, GUFX_220418.xdf, A9L2_220405, DECIPHA_220505.ADX, 395w, AFR 195CC Renegade heads, Comp XE274HR cam, Siemens-Deka V 80lb/hr (shorties), Mass-Flo-EFI style 4bbl throttle body with GM maf on top. Custom long tube headers, sidepipes, 5 spd manual.
Re: ways to minimize decel POP?
Thanks.
I altered some values in FN389-Dasphot CT Spark Multiplier and added a 2 degrees to each of the top 2 FN111 Y axis values.
- Is that enough additional timing to start?
- What's the indicator if the FN111 values are too high?
Sean
I altered some values in FN389-Dasphot CT Spark Multiplier and added a 2 degrees to each of the top 2 FN111 Y axis values.
- Is that enough additional timing to start?
- What's the indicator if the FN111 values are too high?
Sean