Throttle Position Sensor (TPS) signal and idle switch.
: Idle switch signal from the TPS indicating the throttle is closed. : Oxygen sensor (lambda) signal. Secondary Controls & Diagnostics Corolla 4AfE 1 6 Ecu Pinout PDF - Scribd toyota 4afe ecu pinout
Pin numbering is usually read Left to Right, Top to Bottom. Throttle Position Sensor (TPS) signal and idle switch
Late-model production, often utilizing a coil-on-plug or wasted-spark distributorless ignition system (DIS) in certain markets, alongside strict OBD-II compliance in North America. ECU Style: Higher pin-density plastic connectors. Standard 4A-FE ECU Pin Functions Explained Secondary Controls & Diagnostics Corolla 4AfE 1 6
Are you running the or a distributorless (wasted spark) setup? What specific symptoms or issues are you trying to resolve?
Discarded the traditional distributor for a Distributorless Ignition System (DIS) or wasted-spark coil packs.
Once I have those details, I can provide a specific pin-by-pin chart for your exact harness.