a friend of wrecked his 98 typer and kept the ecu well i have it in my 98 gsr for allready two days and then a check engine light came on of code 1 and then code 45 which is too lean or too rich and one is 02 sensor so what can i do too fix that i have a fuel pressure regulator set at about 50 psi

 

it cant be ecu related because its 100% ok to run the type r ecu on the car.

 

a while bach a friend of mine used his ecu at the track due too not having his ecu upgraded and had the same code but everything else was working just fine