True or false: Saturated circuit injectors measure between 2 and 6 ohms.

True or false: Saturated circuit injectors measure between 2 and 6 ohms.

• A. True
• B. 2-3 ohms
• C. False
• D. 7-9 ohms

Answer: (C)

Testing injector coils is about verifying continuity against the specific spec for that injector, but there isn’t a single universal resistance range that applies to all saturated circuit injectors. Different injector designs have different coil resistances—some high-impedance types sit well above 6 ohms, while other low-impedance designs run much lower. Because of this variation, claiming that saturated circuit injectors measure between 2 and 6 ohms is not generally true. The correct approach is to check the exact resistance spec for the particular injector model in the service manual and compare your measurement to that value. A reading far outside the specified range indicates a fault, while a reading within the specified range means the coil is likely okay.

Testing injector coils is about verifying continuity against the specific spec for that injector, but there isn’t a single universal resistance range that applies to all saturated circuit injectors. Different injector designs have different coil resistances—some high-impedance types sit well above 6 ohms, while other low-impedance designs run much lower. Because of this variation, claiming that saturated circuit injectors measure between 2 and 6 ohms is not generally true. The correct approach is to check the exact resistance spec for the particular injector model in the service manual and compare your measurement to that value. A reading far outside the specified range indicates a fault, while a reading within the specified range means the coil is likely okay.