Toyota MR2 Message Board - View Single Post

rcohen · 05-03-2007, 09:45 PM

My current setup is:
Cams oem
Intake Manifold oem
Turbocharger TDO6- 20G
Fuel system; Supra 550's, supra pump and ATS FPR
Ignition System oem / MSD 6AL
Spark plugs ngk copper
GM 3bar map and AIT
AEM Guage type O2 sensor (not run to EMS yet)
Stock O2 sensor
Exhaust system custom 3"
Any modifications to the head; 1mm oversize intake and exhaust with full street port
Any compression ratio changes; je pistons 8.5:1 compression
Adjustable cam gear settings. Straight up

In the stock 91' 3sgte map I noticed that the o2 #1 is set up for a ntk sensor. When I start my car it runs really rich (10 - 11) in the AEM UEGO (not run to the EMS yet). When I look at the setup map for the NTK O2 it only measures from 4 to 9 AFR. Is this correct.? Seems wrong to me. What O2 sensor setup am I suposet to use for O2 #1 if I will use stock. I don't even know what voltage range the stock O2 uses. Also, I have Supra 550's. AEM onlygives a choice of the Denso or RC in the wizard. Which ones should I select and are they high impedance or low impedance. Do I have to eliminate the stock resistor pack??? I used the stock cal and changed to the Gm AIT and MAP and wasn't sure about the injectors. Does anyone know the battery offsets for the Supra injectors? After I change the injectoer map do I then rescale??

Thanks for any help

05-03-2007, 09:45 PM	#1 (permalink)
rcohen No Skills Join Date: Jan 2006 Posts: 117 Thanks: 2 Thanked 1 Time in 1 Post iTrader Rating: (2/100% )	AEM, Supra 550 and stock O2 My current setup is: Cams oem Intake Manifold oem Turbocharger TDO6- 20G Fuel system; Supra 550's, supra pump and ATS FPR Ignition System oem / MSD 6AL Spark plugs ngk copper GM 3bar map and AIT AEM Guage type O2 sensor (not run to EMS yet) Stock O2 sensor Exhaust system custom 3" Any modifications to the head; 1mm oversize intake and exhaust with full street port Any compression ratio changes; je pistons 8.5:1 compression Adjustable cam gear settings. Straight up In the stock 91' 3sgte map I noticed that the o2 #1 is set up for a ntk sensor. When I start my car it runs really rich (10 - 11) in the AEM UEGO (not run to the EMS yet). When I look at the setup map for the NTK O2 it only measures from 4 to 9 AFR. Is this correct.? Seems wrong to me. What O2 sensor setup am I suposet to use for O2 #1 if I will use stock. I don't even know what voltage range the stock O2 uses. Also, I have Supra 550's. AEM onlygives a choice of the Denso or RC in the wizard. Which ones should I select and are they high impedance or low impedance. Do I have to eliminate the stock resistor pack??? I used the stock cal and changed to the Gm AIT and MAP and wasn't sure about the injectors. Does anyone know the battery offsets for the Supra injectors? After I change the injectoer map do I then rescale?? Thanks for any help