Toyota Corolla Repair Manual: Random/multiple cylinder misfire detected

Inspection procedure

Hint: hand–held tester only: narrowing down the trouble area is possible by performing ”a/f control” active test (heated oxygen sensor or other trouble areas can be distinguished). Perform ac ...

Circuit description

When a misfire occurs in the engine, hydrocarbons (hc) enter the exhaust in high concentrations. If this hc concentration is high enough, there could be an increase in exhaust emissions levels. H ...

Other materials:

Using the steering wheel switches
The steering wheel switches can be used to operate a connected cellular phone or portable digital audio player (portable player). Operating a Bluetooth® phone using the steering wheel switches 1 Volume The voice guidance volume cannot be adjusted using these buttons. 2 Off-hook switch Turns t ...

Hydraulic test
1. Perform hydraulic test Measure the line pressure. Notice: Do the test at normal operation atf temperature 50 to 80 °c (122 to 176 °f). The line pressure test should always be carried out in pairs. One technician should observe the conditions of wheels or wheel stopper outside ...

Inspection procedure
Hint: read freeze frame data using the hand-held tester or the obd ii scan tool. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was running or stopped, the engine was warmed up or not, the ...