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I am chasing a up and down idle issue only in park when I put it in drive the issue goes away. Using SCT in closed loop to data log Spark Source and while idling, with the car In park it changes from 9 to 1. When this change happens is when the car idle up and down erratically. My MAF...

I am tuning my single turbo 2v with SCT PRP. when doing a in park rev log 1500,2000,2500,3000,3500,4000 rpm. I am in closed loop the STFT are within 3% and no matter what RPM the AFR is reading lean. While idling the Trims are perfect and AFR is around 17.2. If it was a air leak before the O2...

Im installing a snow progressive meth kit on 99 built 2v with a single 7875 running pump gas twin 340lph 10an feed split to 8an and 8an return . I have PRP SCT Advantage with calibrator access. What would have to be done in the tune to only add timing according to ACT. Nozzle is located after...

I can’t find the switches in SCT PRP to shit off the P1234 and P1233 codes for when you convert to a return setup. Someone mentioned that they possibly eliminated it after Environmental takeover. Anyway around this. I still have the switch for P1000 code. Or maybe I’m just not looking in the...

Am I missing something where the H@&L are the value files. I have SCT Pro Racer purchased from LasotaRacing and can not for the life of me find the value files. Where can I download them. LaSota originally did the mailmorder tune for me with a returnless setup. I’m thinking about going to a...

7675 precision single turbo 2v. Twin AEM 320 in Cobra Hat and Tank. Modified FPDM with all upgraded 10ga wire to pumps. Full tank of gas. I’m having a fuel pressure drop at WOT. At WOT The fuel pressure drops to like 15lbs. I replaced the FRPS and still having the same issue. I installed...

I currently have 3.73 gears installed about a yr old, did all new bearings and seals. At the time I didn’t have my turbo kit installed. So now with my turbo setup I wanna change back to 3.27. Since both have 11 pinion teeth and the only difference being the amount of teeth in the ring gear...

I am having a problem tuning my car with SCT Pro Racer Advantage and livewire for Datalogs. When I do a idle datalog my STFT are perfect on passenger side bank 1 and on bank 2 it is differentiated lean by 10-13 pts I checked for exhaust leaks and smoked for vacuum leaks seams like 100 times...

I have a squeak sound coming from my Harmonic balancer. I pulled the belt off to see where the sound was coming from. There is no wobble or play in it. A little about my car. It’s a 2002 4.75 MMR 750 with a 4r70w and a Journal bearing PT7675 ON3 turbo kit. I have good oil pressure 100psi at...

I am working with a prominent mail order tuner and having problem with idle. My STFT is .75 on bank 1 and bank 2 during 2 minute datalog. My innovate wb is at 22.4 if I hit the gas to say 1700rpm it drops to like 16. Tuner added fuel about 4 times by multiplying MAF transfer table by 1.3 but...

I have 99 GT and just did ON3 performance Cobra fuel tank and 03 Cobra dual pump Fuel hat upgrade. I did the fuel pump wire upgrade through the top of the hat to a relay to a modified FPDM. Everything works fine except for this damn fuel gauge reading Empty. I used the stock GT fuel sender...

Take a look at my setup and see if it's all correct. I ran all 8an lines and also did the Head Cooling Mod. Can I just cap the Fuel Pressure sensor or do I have to run a hose back to the other rail? http://s1067.photobucket.com/user/Lo...%20Jr%20Intake

I have been searching for awhile now and am really confused now that I seen a chart posted by Kenne Bell. According to the chart a single cobra pump at 12v and 60psi only flow 104 lph, while a stock 2v pump flows 149lph so really if I replace my two cobra pumps with 2v pumps it is an upgrade...