Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSMAZDA20113 MAZDASPEED, 2.3 3REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 503 (ENGINE CONTROL SYSTEM)
2011 Mazda 3 Mazdaspeed, 2.3 3
Section 503 (Engine Control System)
2011 Mazda 3 Mazdaspeed, 2.3 3SECTION Section 503 (Engine Control System)
WARNING: This page is about a different car, the 2005 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.
- Control System Location Index
- Control System Diagram (BP)
- Control System Diagram (BP With TC)
- Control System Wiring Diagram (BP)
- Control System Wiring Diagram (BP With TC)
- Pcm Removal/Installation
- Pcm Inspection
- Intake Air Temperature (IAT) Sensor Inspection
- Intake Air Temperature (IAT) Sensor No.2 Inspection (BP With TC)
- Mass Air Flow (MAF) Sensor Inspection
- Throttle Position (TP) Sensor Inspection
- Throttle Position (TP) Sensor Replacement
- Engine Coolant Temperature (ECT) Sensor Inspection
- Crankshaft Position (CKP) Sensor Inspection
- Crankshaft Position (CKP) Sensor Adjustment
- Crankshaft Position (CKP) Sensor Removal/Installation
- Plate Removal/Installation
- Camshaft Position (CMP) Sensor Removal/Installation
- Camshaft Position (CMP) Sensor Inspection
- Knock Sensor (KS) Removal/Installation
- Knock Sensor (KS) Inspection
- Heated Oxygen Sensor (Ho2S) Inspection
- EGR Boost Sensor (BP), Barometric Pressure (BARO)/Manifold Absolute Pressure (Map) Sensor (BP With TC) Inspection (BP, BP With TC)
- Clutch Pedal Position Switch Inspection
- Neutral Switch Inspection
- Power Steering Pressure (PSP) Switch Inspection
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.