OBD-II Diagnostic Trouble Code
P0214 — Cold Start Injector 2 Malfunction
P0214 means the ECM detected a fault in the cold start injector 2 circuit or its operation. It is the same type of fault as P0213 but for the second cold start injector or cold-start fuel device. Usage varies by manufacturer, so confirm which component it refers to on the specific engine.
Severity 2/5
Truck-relevant
Service soon
Severity
Service soon
Cold Start Injector 2 Malfunction
Code
P0214
Category
Powertrain
Subsystem
Cold Start
Truck-relevant
Yes
What this means for truckers
P0214 (Cold Start Injector 2 Malfunction) — same as P0213, second cold-start injector.
Before you replace parts — try this first
P0214 on the Cold Start system is most often open or shorted wiring or connector to cold start injector 2 — not a dead part. On commercial diesels especially, work these in order before spending money on parts:
- Confirm the symptoms. Match what your truck is doing to the Symptoms section below. If the code is set but the symptoms are not there, clear the code and re-test after a drive cycle — it may not return.
- Clean and dry the sensor connector. Water, road salt, or oil seeping into a connector is the #1 fake sensor failure. Disconnect, look for green corrosion or moisture, spray with electrical contact cleaner, dry, reseat. Many faults clear here for $0.
- Inspect the wiring harness. Trace the wire from the sensor toward the ECM — look for chafing against the engine block, melted insulation near the turbo or exhaust, or pinch points where a clamp has rubbed through.
- Test the sensor before swapping it. Most Common Causes (below) list the expected voltage or resistance range — a $20 multimeter saves a $300 sensor swap that does not fix the problem.
- Only then, replace the part. Use the OEM or a tier-1 aftermarket. Cheap sensors throw the same code in two weeks.
Symptoms
Long cranking or hard starting when cold, rough running for the first minutes, and a check engine light. A leaking injector can cause rich running or flooding.
Common causes
- CommonOpen or shorted wiring or connector to cold start injector 2 ($100–$400)
- CommonFailed cold start injector 2 ($150–$600)
- OccasionalFaulty coolant temperature input or thermo-time switch ($100–$350)
- RareECM driver fault ($1000–$3000)
How to fix
Confirm the manufacturer definition and location of cold start device 2
When to use: First step
Test power, ground and coil resistance
When to use: To isolate wiring versus component
Repair wiring or replace the component
When to use: When the fault is confirmed
Affects most
No specific vehicle pattern found in our complaint database. This code can appear on any vehicle that supports OBD-II diagnostics.
Related
- → Browse all DTC trouble codes
- → Decode a VIN to check codes for your truck
- → Owner-operator maintenance guides
- → P0200 — Injector Circuit Malfunction
- → P0201 — Injector Circuit Malfunction - Cylinder 1
- → P0202 — Injector Circuit Malfunction - Cylinder 2
- → P0203 — Injector Circuit Malfunction - Cylinder 3
- → P0204 — Injector Circuit Malfunction - Cylinder 4
Frequently Asked Questions
Can I drive with code P0214?
P0214 is severity 2 — service this week. Not an immediate stop, but ignoring it usually compounds the problem. Most common cause for this code is a worn sensor or minor performance fault that won't strand you today but will get more expensive the longer you wait.
How much does it cost to fix P0214 on a commercial truck?
Total repair cost ranges $100–$3000 depending on the root cause. The cheapest fix is usually the first one listed below — Open or shorted wiring or connector to cold start injector 2 — which is also the most common. On commercial trucks the cost is usually higher than passenger vehicles due to part availability and shop labor rates ($120–185/hour at most truck shops, vs $90–130 at general auto shops). DIY-capable fixes (sensors, hoses, filters) are at the low end; major component replacements (turbo actuator, high-pressure fuel pump, transmission solenoid pack) are at the high end. Always diagnose with a scan tool BEFORE replacing parts — guessing wrong on a $1,500 turbo actuator when the actual issue was a $30 boost hose is a common expensive mistake.
Will P0214 fail a DOT inspection?
P0214 is generally not a direct DOT inspection fail item by itself. Inspectors focus on safety-critical systems (brakes, steering, tires, lights, hours-of-service). However, the check engine light alone can trigger additional inspection scrutiny. Best practice: fix the code and clear it before a planned inspection.
What's the difference between P0214 and related codes?
P0214 is closely related to: P0200 (Injector Circuit Malfunction), P0201 (Injector Circuit Malfunction - Cylinder 1), P0202 (Injector Circuit Malfunction - Cylinder 2), P0203 (Injector Circuit Malfunction - Cylinder 3). These codes share the same subsystem (cold-start) and often appear together. If you see this code, scan for the full code list — fixing the root cause usually clears multiple companion codes at once. If only P0214 is set without the companions, the issue is more isolated.
How do I prevent P0214 from coming back after a repair?
For P0214 (Cold Start Injector 2 Malfunction), prevention centers on the cold start system. Test glow plug system annually before winter. Use a battery in good condition — weak batteries make glow plugs work harder. Park indoors below -10°F if possible.