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^^ I actually learned something today. Thankyou for sharing this information, appreciate it. Although i am not currently tinkering with anything because of the weather and having finals in university. Once its all over, there will be no life because race car! I always think about all these...

No filter in my vacuum lines going to map sensor. However, I havent done the 12V Modd to the fuel pump which runs fuel pump on 12V all the time. Without the 12V modd the fuel pump has lower voltage on idle and lower rpm range and this is what could be causing it i am not 100% certain . I also...

I will go ahead and back prob the 02 sensor connector and see the voltage on it. It should be above 0.45Volts on idle from a cold start and go down to 0.45 and bounce back n forth indicating rich lean condition. Honestly car also sounds like it has an exhaust leak on a cold start, how would i...

I recently did a swap on my lex sc300 with a jzz30 1jz Ever since i have been driving it, the car keeps on giving me a lean a/f mixture code. I hooked up a wideband and noticed it has 15:1 to 17:1 a/f on idle. high 13's:1 on high way cruise 55 mph . 10-11 :1 on WOT If i am doing fine under...

Hello, I have always been a fan of supra's but never had a chance to own one or learn more about the engines. Still looking to buy a supra, I hope i find my first one here! - Lokesh