Toyota Corolla (E120): Catalyst system efficiency below threshold

Inspection procedure

Circuit description

Other materials:

Circuit description
The throttle position sensor is mounted in the throttle body and detects the throttle valve opening angle. When the throttle valve is fully closed, a voltage of approximately 0.3 To 1.0 V is applied to terminal vta of the ecm. The voltage applied to terminal vta of the ecm increases in pro ...

Overhaul
1. Remove cylinder block water drain cock sub–assy Remove the cylinder block water drain cock from the cylinder block. 2. Inspect connecting rod thrust clearance Using a dial indicator, measure the thrust clearance while moving the connecting rod back and forth. Standard t ...

Radio broadcast cannot be received (bad reception)
Inspection procedure 1 Check if radio auto–search functions properly Check if the radio auto–search functions properly.  Perform the auto–search of the radio and check that it functions normally. Standard: the radio auto–search functions properly. 2 Check optional ...