P0213

Code

GWM P — Powertrain

- Malfunction of 1 injector at start-up

Brand: GWM

Type: P — Powertrain

Views: UK: 20 EN: 32 RU: 29

AI status

Completed

ready

Completed 100%

Page language: EN

Causes

Open or shorted injector coil on the affected cylinder
Poor connector contact or corroded terminal at the injector
Broken or shorted wiring between ECM/PCM and injector
Faulty injector driver/transistor in the PCM/ECM
Clogged, stuck, or mechanically failed injector (no flow or erratic flow)
Low battery or weak starter causing abnormal cranking conditions

Symptoms

Hard or slow starting, extended cranking time
Rough or uneven engine operation immediately after start
Visible black smoke from exhaust during start (rich condition)
Possible misfire codes (P030x) or increased misfire counts at start-up
Check Engine Light (MIL) illuminated or stored DTC
Reduced engine performance until issue clears or engine warms

What to check

Read stored and pending DTCs and view freeze-frame data with a scan tool
Check battery voltage during cranking (should be >11 V)
Inspect injector connector and wiring for damage, corrosion, poor pin fit or water intrusion
Measure injector coil resistance with a multimeter and compare to factory spec
Use a noid light or oscilloscope to verify injector pulse during cranking/start sequence
Check fuel rail pressure and flow at cranking/start

Signal parameters

Battery/ECU supply voltage during cranking: typically >11.5 V (min) and ≤14.5 V (max) — verify with spec
Injector coil resistance: consult factory specification; common range for many injectors ~1–16 Ω. Readings infinite (open) or extremely low (
Injector drive pulse: present during cranking/start; typical pulse width during cranking often 2–10 ms (varies by engine and temp) — verify presence and timing with noid or scope
Fuel rail pressure at cranking: vehicle-specific; low pressure can mimic injector no-flow conditions — compare to manufacturer spec
ECM driver voltage waveform: clean square/driver waveform on scope; excessive noise or no waveform indicates driver or wiring issue

Diagnostic algorithm

Connect a scan tool, record DTCs and freeze-frame; note engine temperature, rpm and voltage at fault occurrence.
Visually inspect the suspect injector connector, wiring harness and nearby components for damage, corrosion, melted insulation, or water intrusion.
Check battery voltage at battery and at injector harness during cranking; ensure good battery/ground connections.
Measure injector coil resistance with an ohmmeter; compare to factory spec. If out of range, replace injector.
Use a noid light or oscilloscope at the injector connector during cranking to confirm injector pulse. No pulse → suspect wiring or PCM driver. Pulse present but engine still rough → suspect injector mechanical or fuel supply.
Perform a wiggle test on wiring/connectors while monitoring injector signal to find intermittent faults.
Swap the suspect injector with a known-good injector from another cylinder (if identical) and re-check codes/behavior. If fault follows injector → replace injector.
If fault stays on same cylinder after swap, trace and test wiring continuity and resistance between injector connector and PCM; check for short to ground or battery.
Check fuel rail pressure and flow; replace pump/filter/regulator if pressure is out of spec.
If wiring and injector test good, test PCM driver output and grounds; consult manufacturer procedures for PCM bench or in-vehicle tests. Replace PCM only after ruling out wiring and injector mechanical failure.
After repairs, clear codes, perform cranking/start tests and road test to confirm the issue is resolved.

Likely causes

Loose/corroded injector connector or pins
Open/short in the injector wiring harness (pinch, chafing, rodent damage)
Injector coil resistance out of tolerance (internal short/open)
Injector seized or contaminated with deposits
Poor battery/ground during cranking causing undervoltage to injector driver

Fault status

⚠️ Status

ECM detected a start-up injector malfunction on one cylinder and set DTC P0213. MIL may be illuminated and the code stored; freeze-frame data records conditions during detection. Code may be pending or confirmed depending on reoccurrence.

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 1-3 hours

Your experience will help others

+100 karma for a short comment :)

Was this AI description helpful?

Your feedback helps improve AI descriptions.

👍 Like 0 👎 Dislike 0

Send to email

P0213 — - Malfunction of 1 injector at start-up