P2282

DTC P2282

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Initial Inspection and Diagnostic Overview
* Review Strategy Based Diagnosis for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions provide an overview of each diagnostic category.

DTC Descriptor

DTC P2282: Intake Manifold Air Leak

Circuit/System Description

The engine control module (ECM) compares actual vacuum reading of the manifold absolute pressure (MAP) sensor at idle to a calculated vacuum reading.

Conditions for Running the DTC

^ The evaporative emission (EVAP) purge canister commanded state is less than 100 percent.
^ The barometric pressure (BARO) is greater than 72 kPa.
^ The engine coolant temperature is greater than -10°C (14°F).
^ The intake air temperature (IAT) sensor is greater than -20°C (-4°F).
^ The ignition 1 voltage is between 11-16 volts.
^ The engine has been operating for 2 seconds.
^ The DTC runs continuously when the above conditions are met for 3 seconds.

Conditions for Setting the DTC

The ECM detects that the actual vacuum reading is greater than the calculated vacuum.

Action Taken When the DTC Sets

DTC P2282 is a Type B DTC.

Conditions for Clearing the DTC

DTC P2282 is a Type B DTC.

Reference Information

Schematic Reference

Engine Controls Schematics Electrical Diagrams

Connector End View Reference

^ Engine Control Module Connector End Views Connector Views
^ Engine Controls Connector End Views Connector Views

Electrical Information Reference

^ Circuit Testing Circuit Testing
^ Connector Repairs Connector Repairs
^ Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections
^ Wiring Repairs Wiring Repairs

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Scan Tool Reference

^ Scan Tool Data List Scan Tool Data List
^ Scan Tool Data Definitions Scan Tool Data Definitions
^ Scan Tool Output Controls Scan Tool Output Controls

Circuit/System Verification

1. Operate the vehicle within the conditions for running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records. DTC P2282 should not set.
2. If the vehicle passes the Circuit/System Verification test, then operate the vehicle within the conditions for running the DTC. You may also operate the vehicle within the conditions that are captured in the Freeze Frame/Failure Records List.

Circuit/System Testing

1. Verify that none of the following conditions exist:

^ The air intake duct system for loose connecting clamps, cracks, or other damage
^ A damaged throttle body blade or shaft
^ Splits, kinks, or improper connections at the vacuum hoses
^ An exhaust gas recirculation (EGR) system leak
^ Faulty positive crankcase ventilation (PCV) system operation
^ Carbon deposits on the throttle blade-Refer to Throttle Body Inspection and Cleaning.
^ Vacuum leaks at the intake manifold, throttle body, and injector O-rings

2. If all conditions test normal, test the engine for proper camshaft timing.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Verification Tests

^ Throttle Body Assembly Replacement
^ Air Cleaner Inlet Duct Replacement