Ignition Coil G Primary Control Circuit High
What does P2313 mean?
The P2313 code means the vehicle's onboard diagnostic system has detected: Ignition Coil G Primary Control Circuit High. This is a moderate severity code.
Common Symptoms
- Cylinder 7 misfire detected
- Check Engine Light on
- Engine vibration at idle
- Sluggish acceleration
- Elevated exhaust emissions
Probable Causes (Ranked by Likelihood)
- Short circuit in coil G wiring Very High
- Internally shorted ignition coil G High
- Water in coil G spark plug well Moderate
- ECM coil driver output fault Low
Step-by-Step Diagnostic Procedure
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Check spark plug well for water or oil
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Swap coil G to verify the fault follows the coil
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Inspect wiring for abrasion or heat damage
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Measure coil G resistance
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Check for intake manifold leaks that could allow moisture into plug wells
Frequently Asked Questions
Can I drive with code P2313?
Short distances only. Get the misfire repaired to prevent catalytic converter damage and restore full engine performance.
What causes P2313?
Usually a shorted ignition coil or moisture in the spark plug well. V8 engines with coil-on-plug designs are common targets for this code.
Is P2313 expensive to fix?
Usually $50 to $350. Single coil replacement is very affordable. A full set of 8 coils for preventive maintenance may cost $200 to $400 total.