4s-fe Ecu Pinout Fixed -

The 4S-FE is a popular swap into KE70 Corollas and classic rear-drive Toyotas because of its torque and parts availability.

Always check your ECU part number (e.g., 89661-05490 , 89661-2B250 ) before trusting any diagram. This guide covers the common 22-pin + 16-pin + 12-pin layout (Gen 2) found in most USDM 1992-1994 Camrys. 4s-fe ecu pinout

Ensure there is zero resistance between the E2 pin and the sensor connectors. A bad ground can cause "ghost" sensor codes. The 4S-FE is a popular swap into KE70