Toyota Corolla (E120) 2002–2008 Repair Manual

Toyota Corolla (E120) 2002–2008 Repair Manual

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Inspection procedure
1 Check low pitched horn assy Connect the positive (+) lead from the battery to the terminal and negative (–) lead to the horn body, and check that the horn blows. 2 Check relay (marking: horn) Remove the relay from the engine room j/b.  check the horn relay conti ...

Circuit description
The fuel trim is related to the feedback compensation value, not to the basic injection time. The fuel trim includes the short–term fuel trim and the long–term fuel trim. The short–term fuel trim is the short–term fuel compensation used to maintain the air–fuel ratio at stoichiomet ...

Fuel information
You must only use unleaded gasoline in your vehicle. Select octane rating 87 (Research Octane Number 91) or higher. Use of unleaded gasoline with an octane rating lower than 87 may result in engine knocking. Persistent knocking can lead to engine damage. At minimum, the gasoline you use should ...