Home › OBD2 Codes › P2324
P2324 Ignition System
Ignition Coil I Primary Control Circuit Low
P2324 means the ECM detected low voltage on the primary control circuit for ignition coil I. This applies to larger engines such as V10 and V12. The cylinder served by coil I is likely misfiring.
🚗 Not recommended. The affected cylinder is misfiring and can damage the catalytic converter.
Is P2324 really the problem on YOUR car? Get a free AI diagnosis ranked by probability for your exact year, make, and model.
Run Free Diagnosis →
🎯 Top Causes, Ranked by Likelihood
#1 Failed ignition coil (cylinder I) $30-$120
Internal primary winding fault in the coil unit.
#2 Wiring or connector fault at the coil $40-$250
Damaged connector, chafed wire, or bad ground.
#3 ECM driver circuit fault $200-$900
Rare failure of the coil driver in the ECM.
🩺 Common Symptoms Single cylinder misfire Rough idle and shaking Check engine light Loss of power Poor fuel economy 💰 Repair Cost: DIY vs Shop
📋 Free OBD2 Code Cheat Sheet
The 50 most common codes with likely cause and DIY fix cost. Sent once, no spam.
🔧 How to Diagnose P2324 1 Find which cylinder coil I serves on your engine
2 Swap the coil with an adjacent cylinder to test if the code follows
3 Inspect the coil connector and wiring
4 Replace the coil if it is the source
❓ Frequently Asked Questions Can I drive with P2324?
Not for long. A misfire can overheat and ruin the catalytic converter.
Which engines use coil I?
Coil I appears on high-cylinder-count engines like V10 and V12 designs with one coil per cylinder.
How much to fix P2324?
A single coil is $30-$150 DIY, or $120-$400 at a shop.
🔗 Related Codes
Don't guess. Know exactly what's wrong. AmpAuto's AI ranks the real causes for your specific vehicle in 30 seconds.
Diagnose P2324 Free →