ok so i have a pretty much stock 1jzgte in an 89 supra with an autmatic chaser harness the car is 5speed now the harness was done by dr tweak. my cel comes after i drive the car for a little bit or when i boost and then it will stay on until i turn the car off again my guess is the o2 sensor so i tried jumping TE1 and E1 in the diagnostic port and its not flashing any codes is there a way i can go about fixing this?or am I jumping the wrong pins the car runs fine for the most part andits been doing this for about a year now i just having really looked into iit until now can some one help please?any possitive input would be nice