Is any body elses check engine light on
 

i replaced the knock sensor, which the car told me to do through the diagnossis but its still on

clear the codes: take the 15amp efi fuse out under the hood for atleast 30 seconds to reset the ecu. if the light is still on, you have another code.

lol i think the way to check these codes is just wierd. Just thought id throw that out there.

better than having to drive to autozone or the dealership or buying a diagnostics tool. im glad toyota did something simple like that

dusty -same problem
 

[i have same prob had my 86 supra had it to 3 mechanics replaced wiring from computer with coax still didnt fix prob - trying to track another computer - any suggestions]