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.
Connecting Tachometer
Connect tachometer between chassis ground and terminal IG- of DLC No. 1. See Figure. See COMPONENT LOCATIONS .
| Component | Location | |
|---|---|---|
| A/C Idle-Up Valve | On air intake chamber. See Figure. | |
| ACIS Intake Air Control Valve (IACV) | On timing belt end of intake air chamber. See Figure. | |
| ACIS-IACV Actuator | On timing belt end of intake air chamber. See Figure. | |
| ACIS Vacuum Switching Valve (VSV) | On top of engine. See Figure. | |
| ACIS Vacuum Tank | Under battery. See Figure and Figure. | |
| Air Intake Chamber | Above right side of engine, bolted to center of intake manifold. | |
| Camshaft Sensor | At flywheel end of left cylinder head. | |
| Circuit Opening Relay | Above glove box. | |
| Crankshaft Sensor | Left side of crankshaft pulley. | |
| Data Link Connector (DLC) No. 1 | On end of air intake chamber. See Figure. | |
| EFI Fuse (15-Amp) | Left side of engine bay, in fuse/relay block. | |
| EFI Main Relay | To left of battery, in fuse/relay block. | |
| EGR Temperature Sensor | Next to EGR valve, on EGR pipe. | |
| EGR Vacuum Modulator | Next to EGR valve. See Figure. | |
| EGR Vacuum Switching Valve (VSV) | On top of engine. | |
| Engine Control Module (ECM) | Behind glove box. | |
| Engine Coolant Temp. (ECT) Sensor | On water inlet (thermostat housing). | |
| EVAP (Charcoal) Canister | Left side of engine compartment. | |
| EVAP Check Valve (For Canister) | Under EVAP (charcoal) canister. | |
| EVAP Thermal Valve | On flywheel end of intake manifold. | |
| Fuel Filter | On left side of engine compartment. | |
| Fuel Pressure Pulsation Damper | Below throttle body, on fuel rail. | |
| Fuel Pressure Regulator | On end of left fuel rail. | |
| Fuel Pressure Regulator Vacuum Switching Valve (VSV) | On top of engine. | |
| Fuel Pump | Under rear seat cushion, in fuel tank. | |
| Idle Air Control (IAC) Valve | Under throttle body. See Figure and Figure. | |
| IGN Fuse (7.5-Amp) | Behind left side of instrument panel, in fuse/relay block. | |
| Ignitor | On left front strut tower. | |
| Ignition Coil | One on top of each spark plug. | |
| Intake Air Control Valve (IACV) & Actuator (For ACIS) | On timing belt end of intake air chamber. See Figure. | |
| Intake Air Temp. (IAT) Sensor | Part of Mass Airflow (MAF) sensor. | |
| Knock Sensors | Under intake manifold, on top of cylinder block. | |
| Mass Airflow (MAF) Sensor | In intake air hose. See Figure. | |
| Oxygen Sensor | ||
| Main | One on each exhaust manifold. | |
| Sub (Calif.) | In pipe between catalytic converter and first muffler. | |
| Park/Neutral Position (PNP) Switch | Left side of transaxle. | |
| PCV Valve | In timing belt end of right valve cover. | |
| Starter Relay | To left of battery, in fuse/relay block. | |
| Sub-Throttle Actuator Motor (With TRAC) | On throttle body. See Figure. | |
| VSS No. 1 | On right side (firewall side) of transaxle. See Figure. | |
Use the Manual With the Right Hardware
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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.
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