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Old 01-26-2006, 07:15 PM   #1
raddy
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Default ECU modification question-fuel cut

Hi all
Im trying to help my friend who owned supra with 7M-GTE engine.
Problem is that he need to remove fuel cut.
It is some solution for this already done or ECU modification is neccessary for this?
Im experienced with ECU modification in my nissan 200sx, but will need some help with toyota....It is possible to provide me address file for 7M GTE engine for binary modification?

Thank you for your help and all your opinions.

Regards
Raddy
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Old 01-26-2006, 07:27 PM   #2
joel w
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uhhhh, hahahha i know some people use the hks fuel cut defender, i do and it works fine, but there is no overboost protection. so keep an eye on the boost gauge.... also ive read about modding the afm, or installing the lexus afm and 550 injectors.. but ive never read about hacking the ecu...let us know ..
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Old 01-26-2006, 09:54 PM   #3
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how you toyota guys install larger AFM and/or injectors withou ECU modification? Are you using just piggiback ecus for corrections?
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Old 01-26-2006, 10:07 PM   #4
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well i think,,, and ppl correct me if im wrong.,, but the lexus afm is larger diameter so it takes much more flow before it tells the ecu to trip fuel cut.. and i think by the time most people get here, they have uprgrade with some sort of fuel management system. but we are beyond my level of smartness now... LOL...
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Old 01-27-2006, 06:29 AM   #5
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i met someone with the required level. works on an NZ Parker V8 pit crew ( hehe ! hot lap !! ) ... the lexus v8 afm is calibrated better somehow and its for a bigger engine. think the idea was it could just measure higher values of air flow. he said it actually removed the fuel cut on his friends car
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Old 01-27-2006, 07:52 AM   #6
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So, there is no way I think.....
Bigger AFM have its limit far away from smaller one, but also it have different scale of voltage output to airmass then smaller one, so you need to recalibrate your ECU or piggiback....withou this you will recieve incorrect output values form AFM....
Anyway, thank you for your help, guys.
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Old 02-03-2006, 11:02 AM   #7
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if you use 550 injectors along with the Lexus AFM they balance each other out no need for piggybacks the rebic lc gets rid of the fuel cut
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Old 02-03-2006, 11:45 AM   #8
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