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.
2005 Toyota 4Runner Sport, 4.7 T, RWDFACTORY OEM SERVICE PROCEDURE
Service Data
1GR-FE:
Service Data - Engine Control System (1GR-FE)
| Throttle body | ||
| Standard throttle valve opening angle | 60% or more | |
| Accelerator pedal position sensor | ||
| Voltage (ACCEL POS) | Accelerator pedal released | 0.5 to 1.1 V |
| Accelerator pedal depressed | 2.6 to 4.5 V | |
| Voltage (ACCEL POS#2) | Accelerator pedal released | 1.2 to 2.0 V |
| Accelerator pedal depressed | 3.4 to 5.3 V | |
| Camshaft timing oil control valve assy | ||
| VV system is OFF (OCV is OFF) | Normal engine speed | |
| VVT system is ON (OCV is ON) | Rough idle or engine stalled | |
| Camshaft timing oil control valve assy | ||
| Resistance | at 20°C (68°F) | 6.9 to 7.9 Ω |
| Mass air flow meter | ||
| Resistance | at-20°C (-4°F) | 13.6 to 18.4 kΩ |
| at 20°C (68°F) | 2.21 to 2.69 kΩ | |
| at 60°C (140°F) | 0.49 to 0.67 kΩ | |
| Throttle w/ Motor body assy | ||
| Resistance | at 20°C (68°F) | 0.3 to 100Ω |
| Knock sensor | ||
| Resistance | at 20°C (68°F) | 120 to 280 kΩ |
| Engine coolant temperature sensor | ||
| Resistance | at 20°C (68°F) | 2.32 to 2.59 kΩ |
| at 80°C (176°F) | 0.310 to 0.326 kΩ | |
| Circuit opening relay | ||
| Specified condition | 1 -- 2 | Continuity |
| 3 -- 5 | No continuity | |
| 3 -- 5 | Continuity (Apply battery voltage terminal 1 and 2) | |
| EFI relay | ||
| Specified condition | 1 -- 2 | Continuity |
| 3 -- 5 | No continuity | |
| 3 -- 5 | Continuity (Apply battery voltage terminal 1 and 2) |
2UZ-FE:
Service Data - Engine Control System (2UZ-FE)
| Throttle body | ||
| Standard throttle valve opening percentage | 60 % or more | |
| Accelerator pedal position sensor | ||
| Voltage (ACCEL POS) | Accelerator pedal released | 0.5 to 1.1 V |
| Accelerator pedal depress | 2.6 to 4.5 V | |
| Voltage (ACCEL POS#2) | Accelerator pedal released | 1.2 to 2.0 V |
| Accelerator pedal depress | 3.4 to 5.3 V | |
| Mass air flow meter | ||
| Resistance | at-20°C (-4°F) | 12.5 to 16.9 kΩ |
| at 20°C (68°F) | 2.19 to 2.67 kΩ | |
| at 60°C (140°F) | 0.50 to 0.68 kΩ | |
| Camshaft timing oil control valve assy | ||
| Resistance | at 20°C (68°F) | 6.9 to 7.9 Ω |
| Throttle w/ motor body | ||
| Resistance | at 20°C (68°F) | 0.3 to 100 Ω |
| Knock control sensor | at 20°C (68°F) | 120 to 280 kΩ |
| Engine coolant temperature sensor | ||
| Resistance | Approx. 20°C (68°F) | 2.32 to 2.59 kΩ |
| Approx. 80°C (176°F) | 0.310 to 0.326 kΩ | |
| Circuit opening relay | ||
| Specified condition | 3 -- 5 | 10 kΩ or higher |
| 3 -- 5 | Below 1 Ω (Apply battery voltage to terminals 1 and 2) | |
| EFI relay | ||
| Specified condition | 3 -- 5 | 10 kΩ or higher |
| 3 -- 5 | Below 1 Q (Apply battery voltage to terminals 1 and 2) |
Factory Service Tools
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.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.