DTC P2282. Chevrolet Optra

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 2007 🢒 Optra - Mexico 🢒 DTC 🢒 DTC P2282

Diagnostic Instructions

•	Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

•	Review Strategy Based Diagnosis for an overview of the diagnostic approach.

•	Diagnostic Procedure Instructions provides 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 more 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 more 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

Connector End View Reference

•	Engine Control Module Connector End Views

•	Engine Controls Connector End Views

Description and Operation

Air Intake System Description

Electrical Information Reference

•	Circuit Testing

•	Connector Repairs

•	Testing for Intermittent Conditions and Poor Connections

•	Wiring Repairs

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Scan Tool Reference

•	Scan Tool Data List

•	Scan Tool Data Definitions

•	Scan Tool Output Controls

Circuit/System Verification

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.
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 Data List.

Circuit/System Testing

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 EGR system leak

•	Faulty 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 .

If all conditions test normal, test the engine for proper camshaft timing. Refer to Timing Belt Replacement .

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Throttle Body Assembly Replacement