(d) Reconnect the ECM connector.
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (ECM - BODY GROUND)
OK -- Continue to next step.
13. CHECK FUEL INJECTOR ASSEMBLY OF MISFIRING CYLINDER
(a) Check the fuel injector assembly injection (whether fuel volume is high or low, and whether injection pattern is poor) See:
Powertrain Management/Fuel Delivery and Air Induction/Fuel Injector/Testing and Inspection.
NG -- REPLACE FUEL INJECTOR ASSEMBLY See: Powertrain Management/Fuel Delivery and Air Induction/Fuel
Injector/Service and Repair/Removal
OK -- Continue to next step.
14. INSPECT INTAKE SYSTEM
(a) Check the intake system for vacuum leaks See: Engine, Cooling and Exhaust/Engine/Intake Manifold/Testing and Inspection.
OK:
No leaks in intake system.
NG -- REPAIR OR REPLACE INTAKE SYSTEM
OK -- Continue to next step.
15. CHECK FUEL PRESSURE
(a) Check the fuel pressure See: Powertrain Management/Fuel Delivery and Air Induction/Testing and Inspection.
NG -- CHECK FUEL LINE
OK -- Continue to next step.
16. READ VALUE USING TECHSTREAM (COOLANT TEMP)
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine / Data List / Coolant Temp.
(e) Read the Coolant Temp twice, when the engine is both cold and warmed up.
Standard:
With cold engine
Same as ambient temperature.
With warm engine
Between 75锟斤拷C and 95锟斤拷C (167锟斤拷F and 203锟斤拷F).
NG -- REPLACE ENGINE COOLANT TEMPERATURE SENSOR See: Engine, Cooling and Exhaust/Cooling System/Engine -
Coolant Temperature Sensor/Switch/Engine Temperature Sensor/Service and Repair/Removal
OK -- Continue to next step.
17. INSPECT MASS AIR FLOW METER SUB-ASSEMBLY
HINT
Inspect the mass air flow meter sub-assembly See: Powertrain Management/Computers and Control Systems/Air Flow
Meter/Sensor/Testing and Inspection/On-Vehicle Inspection.
NG -- REPLACE MASS AIR FLOW METER SUB-ASSEMBLY See: Powertrain Management/Computers and Control
Systems/Air Flow Meter/Sensor/Service and Repair/Removal
OK -- Continue to next step.
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