2.5L CBTA ,CBUA Overview
Component Locations: Engine Management System
2.5L CBTA ,CBUA Overview
1 - Fuel injector => [ Fuel Rail and Injectors Assembly Overview ] See Image Below.
• Cylinder 1 Fuel Injector -N30-
• Cylinder 2 Fuel Injector -N31-
• Cylinder 3 Fuel Injector -N32-
• Cylinder 4 Fuel Injector -N33-
• Cylinder 5 Fuel Injector -N83-
2 - Camshaft Position (CMP) Sensor -G40-
3 - 81 pin electrical connector
4 - Motronic Engine Control Module (ECM) -J220-
• Located in the plenum chamber
5 - 40 pin electrical connector
6 - Secondary Air Injection (AIR) Solenoid Valve -N112- => [ 2.5L CBTA ,CBUA ] Locations
• For the AIR system
7 - Engine Coolant Temperature (ECT) Sensor -G62-
8 - Evaporative Emission (EVAP) Canister Purge Regulator Valve 1 -N80- => [ Intake Manifold ] See Image Below.
9 - Ignition coil with power output stage => [ Ignition Coil with Power Output Stage ] See Image Below.
• Ignition Coil 1 with Power Output Stage -N70-
• Ignition Coil 2 with Power Output Stage -N127-
• Ignition Coil 3 with Power Output Stage -N291-
• Ignition Coil 4 with Power Output Stage -N292-
• Ignition Coil 5 with Power Output Stage -N323-
10 - Mass Air Flow (MAF) Sensor -G70- with Intake Air Temperature (IAT) Sensor -G42-
• From Model Year (MY) 2009, the Mass Air Flow (MAF) sensor has been deleted and the Intake Air Temperature (IAT) sensor is integrated with the intake manifold pressure sensor on the intake manifold
11 - E-box in the engine compartment, on the left side
12 - Engine Speed (RPM) Sensor -G28-
• Secured to the control housing cover
Cont.
13 - Throttle Valve Control Module -J338- => [ Intake Manifold ] See Image Below.
• With throttle valve control module throttle drive (for electronic power control), throttle drive angle sensor 1 (for electronic power control) and throttle drive angle sensor 2 (for electronic power control)
14 - Camshaft Adjustment Valve 1 -N205-
15 - Secondary Air Injection (AIR) Pump Motor -V101- => [ 2.5L CBTA ,CBUA ] Locations
16 - Knock Sensor 1 -G61- => [ Knock Sensors ] See Image Below.
17 - Knock Sensor 2 -G66- => [ Knock Sensors ] See Image Below.
18 - Connector 6-pin
• Located on the left side of the bulkhead
• For the Heated Oxygen Sensor (HO2S) before the catalytic converter and the Oxygen Sensor (O2S) heater
19 - Heated Oxygen Sensor (HO2S) -G39- => [ Exhaust System ] Locations
• Located in the exhaust manifold
20 - 4 pin electrical connector
• Engine codes BGQ and CBUA only
• For the Oxygen Sensor (O2S) - center Three Way Catalytic Converter (TWC), Bank 1 and the O2S heater - center TWC
21 - Oxygen Sensor (O2S (in Center Three Way Catalytic Converter (TWC), Bank 1 -G465- => [ Exhaust System ] Locations
• Located in the center catalytic converter
• Engine codes BGQ and CBUA only
22 - 4 pin electrical connector
• For the O2S behind TWC and the O2S heater 1 behind TWC
23 - Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130- => [ Exhaust System ] Locations
• Located in the rear catalytic converter
Fuel Rail and Injectors Assembly
Overview
2 - Fuel rail
6 - Fuel injector
• Cylinder 1 Fuel Injector -N30-
• Cylinder 2 Fuel Injector -N31-
• Cylinder 3 Fuel Injector -N32-
• Cylinder 4 Fuel Injector -N33-
• Cylinder 5 Fuel Injector -N83-
7 - Intake manifold
Ignition Coil with Power Output
Stage
• Ignition Coil 1 with Power Output Stage -N70-
• Ignition Coil 2 with Power Output Stage -N127-
• Ignition Coil 3 with Power Output Stage -N291-
• Ignition Coil 4 with Power Output Stage -N292-
• Ignition Coil 5 with Power Output Stage -N323-
Intake Manifold
3 - Evaporative Emission (EVAP) Canister Purge Regulator Valve 1 -N80-
9 - Intake manifold
14 - Manifold Absolute Pressure (MAP) Sensor -G71-
From Model Year (MY) 2009 with integrated with the Intake Air Temperature
(IAT) sensor
18 - Throttle Valve Control Module -J338-
The Throttle Valve Control Module -J338- is
integrated with the following:
• Throttle Position (TP) Sensor -G69-
• Throttle Drive (for Electronic Power Control (EPC)) -G186-
• Throttle Drive Angle Sensor 1 (for Electronic Power Control (EPC) -G187-
• Throttle Drive Angle Sensor 2 (for Electronic Power Control (EPC) -G188-
Oil Pressure Switches
CBUA image shown, CBTA similar
1 - Oil Pressure Switch -F1-
2 - Reduced oil pressure switch -F378-
3 - Oil pressure regulation valve -N428-
EVAP System Assembly Overview
6 - EVAP canister
Engine code CBUA
Located at the bottom of the spare tire well
7 - EVAP canister
Engine code CBTA
Located at the bottom of the spare tire well
16 - Leak Detection Pump (LDP) -V144-
Located under the wheel housing liner in the right rear wheel housing
Knock Sensors
The knock sensors are located on the back side of the engine block
3 - Knock sensor 1 -G61-
9 - Knock sensor 2 -G66-