What Does P0213 Mean?
This code indicates a malfunction in the cold start injector 1 circuit (sometimes labeled as cylinder 12 injector in alternate definitions). The cold start injector provides extra fuel enrichment during cold engine starts. The ECM has detected an open, short, or resistance fault in this injector's circuit, which may cause hard starting in cold conditions.
Common Causes
35%
Faulty cold start injector 1 with failed solenoid coil, stuck valve, or clogged nozzle
30%
Corroded or damaged wiring in the cold start injector circuit, often from age and thermal cycling
20%
Cold start injector relay or thermal time switch failure preventing proper power delivery to the injector
15%
ECM driver circuit fault for the cold start injector output
Diagnostic Steps
1
Step 1: Measure the cold start injector coil resistance. Typical specification is 3-6 ohms for low-impedance types. Replace if open or shorted.
2
Step 2: Check for 12V power at the cold start injector connector during cranking with the engine below operating temperature.
3
Step 3: Inspect the thermal time switch operation by measuring its resistance at various coolant temperatures. It should close below a certain temperature threshold (typically below 95 degrees F).
4
Step 4: Test the cold start injector relay for proper switching by listening for clicks during cold start or measuring relay coil and contact circuit continuity.
5
Step 5: Inspect all wiring and connectors in the cold start circuit for age-related deterioration, corrosion, or heat damage.
Estimated Repair Cost
$120 - $400
Parts + labor, varies by vehicle and location
This code indicates a malfunction in the cold start injector 1 circuit (sometimes labeled as cylinder 12 injector in alternate definitions). The cold start injector provides extra fuel enrichment during cold engine starts. The ECM has detected an open, short, or resistance fault in this injector's c...
The most common cause of P0213 (Injector Circuit Malfunction - Cylinder 12) is: Faulty cold start injector 1 with failed solenoid coil, stuck valve, or clogged nozzle
Typical repair costs for P0213 range from $120 to $400, depending on the vehicle, location, and whether you do it yourself or go to a shop.
A cold start injector malfunction primarily causes difficult cold starts and extended cranking times. There is no significant safety risk, but the vehicle may fail to start in very cold conditions.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P0213 to identify the root cause.
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Quick Info
Category
Powertrain
System
Cold Start Enrichment System
Difficulty
Type
Generic (SAE)
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