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.
Location Of Components, Engine Compartment
Not all the following components are necessarily in the car. The components vary between engine types.
| Component | Located at/on: | |
|---|---|---|
| 1 | Injectors (5 x) | Intake manifold. |
| 2 | Intake camshaft reset valve | Engine, timing belt side, by camshaft. |
| 3 | Exhaust camshaft reset valve | Engine, timing belt side, by camshaft. |
| 4 | A/C pressure sensor | Air conditioning (A/C) system high pressure pipe (thin pipe). |
| 5 | Air conditioning (A/C) pressure switch | Air conditioning (A/C) system low pressure pipe (thick pipe). |
| 6 | Turbocharger (TC) control valve | The turbocharger (TC). |
| 7 | Ignition coil (5 x) | The cylinder head. |
| 8 | Evaporative emission system (EVAP) valve | Intake manifold. |
| 9 | Camshaft position (CMP) sensor, intake | Engine, flywheel side, by the camshaft. |
| 10 | Camshaft position (CMP) sensor, exhaust | Engine, flywheel side, by the camshaft. |
| 11 | Integrated relay/fusebox | |
| 12 | Engine speed (RPM) sensor | Above the flywheel. |
| 13 | Mass air flow (MAF) sensor | The air cleaner (ACL) module. |
| 14 | Engine coolant temperature (ECT) sensor | The thermostat housing. |
| 15 | Engine control module (ECM) | The air cleaner (ACL) module. |
| 16 | Knock sensor (KS) | The cylinder block under the air cleaner (ACL) module. |
| 17 | Engine cooling fan (FC) control module | |
| 18 | Oil pressure switch | Lower front edge of the engine. |
| 19 | Boost pressure sensor | The charge air cooler (CAC) upper right-hand section. |
| 20 | Throttle unit | The engine intake manifold. |
| 21 | Fuel pressure sensor/fuel temperature sensor | Fuel rail right face. |
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no 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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
No obligation. See pricing before you book.