Attention tuners! Need help or base map!

1slow370 · 02-26-2016, 12:02 AM

i start with the k fuel multiplier and get it close to the afr target table at mid throttle first before i touch the maf, once it is the same ballpark afr wise mid to full throttle i get it to idle with the bottom of the maf table, then tweak the afr target tables to run a safe value and slap it on the dyno or nurse it to the tuner for final rescaling and dialing in. it is best to go close to the same percentage oversize on your maf housings as your injectors to keep the k value from getting to ridiculous as it messes with all the tables.

Blk_G37 · 02-26-2016, 11:12 PM

Update after my last reflash the car was running except the cursing/maintaining speed to stay with traffic when on and off throttle the a/f ratios jump around and i'm not sure how to fix that. But my major issue is that earlier tonight i took to car out to log and pull and it pulled strong and a/f ratios stayed around 12:1 but then it felt like it hit a wall around 5k in 3rd gear. I limped it home and checked the codes i now have p010b and p0101 mass air flow circuit range/performance problem. has anyone had this issue? can i just turn these codes off like i did the code for the secondary O2 codes?

02-26-2016, 12:02 AM	#1 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7252	i start with the k fuel multiplier and get it close to the afr target table at mid throttle first before i touch the maf, once it is the same ballpark afr wise mid to full throttle i get it to idle with the bottom of the maf table, then tweak the afr target tables to run a safe value and slap it on the dyno or nurse it to the tuner for final rescaling and dialing in. it is best to go close to the same percentage oversize on your maf housings as your injectors to keep the k value from getting to ridiculous as it messes with all the tables. __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

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02-26-2016, 11:12 PM	#2 (permalink)
Blk_G37 Base Member Join Date: Jun 2015 Location: Nashville Posts: 6 Drives: 08 g37s Rep Power: 11	Update after my last reflash the car was running except the cursing/maintaining speed to stay with traffic when on and off throttle the a/f ratios jump around and i'm not sure how to fix that. But my major issue is that earlier tonight i took to car out to log and pull and it pulled strong and a/f ratios stayed around 12:1 but then it felt like it hit a wall around 5k in 3rd gear. I limped it home and checked the codes i now have p010b and p0101 mass air flow circuit range/performance problem. has anyone had this issue? can i just turn these codes off like i did the code for the secondary O2 codes?