Charge Air Pressure Sensor 2 -G447- / Intake Manifold Temperature Sensor 2 -G430-, Checking

General Description

Intake Manifold Pressure And Temperature Are Two Factors Used For Engine Load Management. They Measure The Intake Air Temperature And The Intake Manifold Pressure. The sender is located upstream of the Throttle Valve Control Module -J338- and contains the following senders:

Charge Air Pressure Sensor 2 -G447-.
Intake Manifold Temperature Sensor 2 -G430-.

Special Tools And Workshop Equipment Required

Multimeter.
Wiring Diagram.
Scan Tool.

Test Requirements

Fuses OK.
Battery voltage OK.
Switch OFF all electrical and electronic accessories.
Vehicles with Auto. Transmission, ensure Selector Lever position is in "P".
Vehicles with Man. Transmission, ensure Shifter Lever position is in "N" with Parking Brake applied.
Observe all safety precautions: SAFETY PRECAUTIONS .
View clean working conditions: CLEAN WORKING CONDITIONS .

Test Procedure

Step	Procedure	Result / Action to Take
1	PERFORM: Preliminary Check to verify the customers complaint. Refer to PRELIMINARY CHECK . -- Was Complaint verified?	-- YES: GO TO: Step 2 Charge Air Pressure Sensor 2 -G447- / Intake Manifold Temperature Sensor 2 -G430-, CHECKING - 2 . -- NO: GATHER more information from customer about the complaint.
2	IGNITION: ON. DISCONNECT: Charge Air Pressure Sensor 2 -G447- / Intake Manifold Temperature Sensor 2 -G430- harness connector. CHECK: Charge Air Pressure Sensor 2 -G447- / Intake Manifold Temperature Sensor 2 -G430- harness connector terminals 2 to 4 for voltage. SPECIFIED VALUE: About 5.0 V. IGNITION: OFF. -- Was Value obtained?	-- YES: GO TO: Step 3 Charge Air Pressure Sensor 2 -G447- / Intake Manifold Temperature Sensor 2 -G430-, CHECKING - 3 . -- NO: GO TO: Step 4 Charge Air Pressure Sensor 2 -G447- / Intake Manifold Temperature Sensor 2 -G430-, CHECKING - 4 .
3	REMOVE: Engine Control Module - J623-. Refer to the appropriate service information. CHECK: Charge Air Pressure Sensor 2 -G447- / Intake Manifold Temperature Sensor 2 -G430- harness connector terminal 1 to the Engine Control Module - J623- harness connector T94 / 18 for resistance. CHECK: Charge Air Pressure Sensor 2 -G447- / Intake Manifold Temperature Sensor 2 -G430- harness connector terminal 3 to the Engine Control Module - J623- harness connector T94 / 65 for resistance. SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω) -- Were Values obtained?	-- YES: REPLACE: Charge Air Pressure Sensor 2 -G447- / Intake Manifold Temperature Sensor 2 -G430-. Refer to the appropriate service information. GO TO: Step 5 Charge Air Pressure Sensor 2 -G447- / Intake Manifold Temperature Sensor 2 -G430-, CHECKING - 5 . -- NO: PERFORM: Visual Inspection of wiring and component. CHECK: Wiring for open, high resistance, short or harness connector for damage, corrosion, loose or broken terminals. REPAIR: Faulty wiring or connector. GO TO: Step 5 Charge Air Pressure Sensor 2 -G447- / Intake Manifold Temperature Sensor 2 -G430-, CHECKING - 5 .
4	REMOVE: Engine Control Module - J623-. Refer to the appropriate service information. CHECK: Charge Air Pressure Sensor 2 -G447- / Intake Manifold Temperature Sensor 2 -G430- harness connector terminal 2 to the Engine Control Module - J623- harness connector T94 / 63 for resistance. CHECK: Charge Air Pressure Sensor 2 -G447- / Intake Manifold Temperature Sensor 2 -G430- harness connector terminal 4 to the Engine Control Module - J623- harness connector T94 / 38 for resistance. SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω). -- Were Values obtained?	-- YES: GO TO: Step 5 Charge Air Pressure Sensor 2 -G447- / Intake Manifold Temperature Sensor 2 -G430-, CHECKING - 5 . -- NO: PERFORM: Visual Inspection of wiring and component. CHECK: Wiring for open, high resistance, short or harness connector for damage, corrosion, loose or broken terminals. REPAIR: Faulty wiring or connector. GO TO: Step 5 Charge Air Pressure Sensor 2 -G447- / Intake Manifold Temperature Sensor 2 -G430-, CHECKING - 5 .
5