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Old Apr 23, 2020 | 10:30 AM
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Default fitech efi ls

I have a fitech 70050 ls stand alone on a 6.0 with a mild cam , and a 5speed std. , im have a issue with popping in the exhaust when i am going wide open throttle first gear , to wide open throttle 2nd gear it starts popping and loses power if i let off for alittle bit its fine its just from 1st , to 2nd wot , new to the tuning any help would be appreciated , thanks
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Old Apr 23, 2020 | 12:24 PM
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I have a similar issue, Gen IV 5.3l with the same FiTech kit. It runs great, but the decel is very noisy. Is your issue during power delivery or decleration? There are a couple of Decel settings that can be adjusted. Have you downloaded the software to a lap top and done a data log yet?

Mike
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Old Apr 23, 2020 | 01:09 PM
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i get some popping on decel., but its mostly 1st to 2nd accel, i did some data logging , all greek to me , i sent it to fitech with no response
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Old Apr 23, 2020 | 02:08 PM
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FITech isn't exactly regarded as a quality EFI system. More of a "Hobbyists entry to EFI" type of package.

Popping on decel is typically fixed by enabling decel fuel cutoff in most EFI systems. Not sure if FITech offers that.
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Old Apr 23, 2020 | 02:48 PM
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It's best to call them. But good luck with that too.
Their documentation is poor and incomplete.

I've helped a buddy with a turbo LS. After a lot of work, and one blown engine it actually runs excellent now.

Did you check their forum?

Ron
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Old Apr 24, 2020 | 06:28 AM
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There are a couple of options for having your system remotely tuned by a professional. Mad Science Motorsports is one and it's pretty affordable. He does work on FiTech systems and can do some pretty amazing things remotely.

Mike
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