P0200Fuel & Air Metering

Injector Circuit/Open

P0200 means the ECM detected a general open or fault in the fuel injector control circuit, not tied to a specific cylinder. Common causes are wiring or connector faults, a failed injector, or an injector driver problem.

🚗 Risky. An injector circuit fault can cause a misfire, rough running, and unburned fuel reaching the catalytic converter. Diagnose promptly.

HIGH

severity

🎯 Top Causes, Ranked by Likelihood

#1Wiring or connector fault$50-$300

40%

An open or corroded injector circuit wire.

#2Failed fuel injector$100-$500

30%

An open injector coil breaks the circuit.

#3ECM injector driver fault$200-$1000

15%

A failed driver in the ECM.

🩺 Common Symptoms

Check engine light
Misfire
Rough running
Loss of power
Poor fuel economy

💰 Repair Cost: DIY vs Shop

DIY Cost

$50-$500

Shop Cost

$150-$1000

📋 Free OBD2 Code Cheat Sheet

The 50 most common codes with likely cause and DIY fix cost. Sent once, no spam.

🔧 How to Diagnose P0200

1Scan for cylinder-specific injector codes

2Inspect injector wiring and connectors

3Measure injector coil resistance

4Test the injector driver circuit

❓ Frequently Asked Questions

Can I drive with P0200?

Only briefly. Injector faults cause misfires and can harm the catalytic converter. Diagnose promptly.

What is the most common cause of P0200?

A wiring or connector fault in the injector circuit is the most common cause, followed by a failed injector.

How much does P0200 cost to fix?

Wiring repairs are cheap; an injector often runs $100-$500 including labor.

🔗 Related Codes

P0201P0202P0203P0204