Gabriel v

Hi! im new in this forum i've a 5th lude and she's turbo, now i'm ready to tune it , for this summer i will tune it with apexi vafc,msd boost master and a wide band , street tune , but now i wan't to know , i've put rc 550 injector and now the car run and take it idle but he run very rich cause my injector are so big , so now how can I lean my afr i've try many thing whit my vafc and nothing be ok , or someone else have a good start guide to start with my vafc , i know is the crappy way to tune a car but for this summer I will stay with it , so please send me an answer im waiting for you to ride my lude

ps: my wide band say: 10:1 afr so is totally rich and cause of that i can't rev up to 5000 rpm

i miss to said that i've no o2s im remove the front and back o2s now i just have my wide band , why i remove my o2s is for simple reason that my motor can run in open loop now so is more easy to hack my map(vafc)


thanks guys!

Artifex

Stop using garbage to tune. Nobody uses VAFCs for FI anymore. Get real engine management.

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mdpc20653

+5 VAFC's are sooo primitive. you can bet that you will hurt something soon after that. at the least get a s100 and get it tuned. trust me. i cant even begin to say how that setup is not good for your motor. if your serious , do it right sir. if not go all motor lol jk. basically read the FI sticky's and go from there and learn from out mistakes.