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 MR2 C56FACTORY OEM SERVICE PROCEDURE
Service Data
Service Data - Ignition
| Spark plug | Recommended spark plug | DENSO made | SK16R11 |
| Β | NGK made | IFR5A11 | |
| Electrode gap | DENSO made | 1.0 - 1.1 mm (0.039 - 0.043 in.) | |
| Β | NGK made | 1.0 - 1.1 mm (0.039 - 0.043 in.) | |
| Camshaft position sensor | Resistance | at cold | 835 - 1, 400 Ξ© |
| Β | at hot | 1, 060-1, 645 Ξ© | |
| Crankshaft position sensor | Resistance | at cold | 1, 630 - 2, 740 Ξ© |
| Β | at hot | 2, 065 - 3, 2250 |
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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.