Hi everyone,
First post here. I own a 2007 Toyota 4Runner 4.0L V6 4x2 and I have recently been introduced to the wonderful world of 1/4 mile racing. Well, the curiosity was killing me after 4-5 trips to the track, how it would run. So on Test & Tune night, I took her down the track. I know... who races a 4Runner, right? Well, with no mods at all, I held the brake, rev'd up to 2500rpm and ran a 15 flat. I was blown away...and instantly addicted. This is my primary vehicle and I have alot of automotive electronics experience but I want to make sure I research thoroughly before I mess with tuning. I Didn't have $350 to purchase a TRD CAI so I built my own based of TRD specs. It runs inside the P/S fender and down just behind the fog light. It works extremely well however, my CEL and Traction Control lights are on. I measured the signal from the MAF and it's out of range obviously, 2.053 vdc @ 2500rpm. The pulled code was P0101, MAF Circuit range/performance. First Question: If my VSC TRAC light is on, does that mean that system is currently disabled. I ask this because unlike before, it seems to have trouble grabbing when I go WOT. I have fairly new Nitto tires too. Second Question: I found, on URD's website, a MAF Sensor Calibrator that claims to correct CEL issues and remap the fuel curve. Can anyone recommend this. I just want to know a little more about how it works. I commute 140 total miles 6 days a week so I'd like to hang on to my highway MPG's but from 2500rpm and up, I'd like to get cleaner, quicker and more powerful response. Any information I can get will be greatly appreciated. Thanks in advance! D-Bro
First post here. I own a 2007 Toyota 4Runner 4.0L V6 4x2 and I have recently been introduced to the wonderful world of 1/4 mile racing. Well, the curiosity was killing me after 4-5 trips to the track, how it would run. So on Test & Tune night, I took her down the track. I know... who races a 4Runner, right? Well, with no mods at all, I held the brake, rev'd up to 2500rpm and ran a 15 flat. I was blown away...and instantly addicted. This is my primary vehicle and I have alot of automotive electronics experience but I want to make sure I research thoroughly before I mess with tuning. I Didn't have $350 to purchase a TRD CAI so I built my own based of TRD specs. It runs inside the P/S fender and down just behind the fog light. It works extremely well however, my CEL and Traction Control lights are on. I measured the signal from the MAF and it's out of range obviously, 2.053 vdc @ 2500rpm. The pulled code was P0101, MAF Circuit range/performance. First Question: If my VSC TRAC light is on, does that mean that system is currently disabled. I ask this because unlike before, it seems to have trouble grabbing when I go WOT. I have fairly new Nitto tires too. Second Question: I found, on URD's website, a MAF Sensor Calibrator that claims to correct CEL issues and remap the fuel curve. Can anyone recommend this. I just want to know a little more about how it works. I commute 140 total miles 6 days a week so I'd like to hang on to my highway MPG's but from 2500rpm and up, I'd like to get cleaner, quicker and more powerful response. Any information I can get will be greatly appreciated. Thanks in advance! D-Bro
