Electrical Connection Check

1. Check ground cable connection between lower right side of engine and body.
2. Check ignition control units connections next to right side ignition coil.
3. Check output ground connection on camshaft housing near blow-off switching valve.
4. Electronic ground connection on camshaft housing near cylinder No. 2.
5. Check the following connections for a good fit. Ensure connector pins are not bent or corroded.
a. Electronic Control Unit (ECU).
b. Intake air sensor.
c. Throttle switch.
d. Engine temperature sensors (No. 1).
e. Intake air temperature sensor (No. 2).
f. Fuel injectors.
g. Speed and reference mark sensors.