2002 Toyota Tacoma Igniter Circuit Malfunction

A Direct Ignition System (DIS) has been adopted. The DIS improves the ignition timing accuracy, reduces high–voltage loss, and enhances the overall reliability of the ignition system by eliminating the distributor. The DIS is a 2–cylinder simultaneous ignition system which ignites 2 cylinders simultaneously with 1 ignition coil. In the 2–cylinder simultaneous ignition system, each of the 2 spark plugs is connected to the end of the secondary winding. High voltage generated in the secondary winding is applied directly to the spark plugs. The sparks of the 2 spark plugs pass simultaneously from the center electrode to the ground electrode. The ECM determines ignition timing end outputs the ignition signals (IGT) for each cylinder. Based on IGT signals, the igniter controls the primary ignition signals (IGC) for all ignition coils. At the same time, the igniter also sends an ignition confirmation signal (IGF) as a fail–safe measure to the ECM.

Alfa 156 2.0 TSpark Timing Belt Replacement

Special Tools
Camshaft locking tools – Alfa Romeo No.1.825.041.000
Inlet camshaft holding tool – Alfa Romeo No.1.822.155.000
Exhaust camshaft holding tool – Alfa Romeo No.1.822.146.000
Timing Belt tensioning tool – Alfa Romeo No.1.822.149.000
Balancer shaft belt tensioning tool – Alfa Romeo No.1.822.154.000

Special Precautions
Disconnect battery earth lead
DO NOT turn crackshaft or camshaft when timing belt removed
Remove spark plugs to ease turning engine
Turn engine in normal direction of rotation
DO NOT turn engine via camshaft or other sprockets
Observe all tightening torques.