Loss of Power

Check in the Order Listed:

1. Fuel Supply
a. Fuel Filter
b. Contaminated Fuel
c. Fuel Pump
d. Injector Resistor
2. Throttle Position (TP) Sensor (7)
3. Air Intake System
a. Throttle Body
b. Intake Control System
4. Emission Controls
a. Catalytic Converter
5. Fuel Injectors (16)
6. Manifold Absolute Pressure (MAP) Sensor (3)(5)
7. Variable Valve Timing & Valve Lift Electronic Control Solenoid Valve [1.
8. Variable Valve Timing & Valve Lift Electronic Control Pressure switch [1].
9. ENGINE CONTROL MODULE (ECM) (BU)

(BU) code used when the MALFUNCTION INDICATOR WARNING LAMP is on. Jump the service check connector, if no code is displayed (MALFUNCTION INDICATOR WARNING LAMP stays on steady), the back-up system is in operation.

Self-diagnosis indicator, (MALFUNCTION INDICATOR WARNING LAMP) blinks (?), will follow associated systems.

[1] Only applies to Vehicles with Variable Valve Timing.