BMW DTC P1194 – Cold Start EVAP Fuel Vapor Temperature Implausible
DTC P1194 meaning on BMW
DTC P1194 on a BMW indicates a fault with the Cold Start EVAP Fuel Vapor Temperature sensor, where the temperature reading is deemed implausible by the engine control module (ECM). This sensor is responsible for monitoring the temperature of the fuel vapor in the evaporative emissions system during cold starts.
BMW DTC P1194 symptoms
Symptoms of DTC P1194 on a BMW may include rough idling during cold starts, decreased fuel efficiency, and potentially an illuminated check engine light on the dashboard.
BMW DTC P1194 causes
The common causes of DTC P1194 on a BMW can be a faulty Cold Start EVAP Fuel Vapor Temperature sensor, wiring issues in the sensor circuit, or a malfunction in the ECM itself.
BMW DTC P1194 seriousness
While DTC P1194 may not cause immediate drivability issues, it is important to address this fault promptly to ensure optimal engine performance and emissions control. Ignoring this fault could lead to increased emissions and potential long-term engine problems.
How to diagnose DTC P1194 on BMW
To diagnose DTC P1194 on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault code and then perform a visual inspection of the Cold Start EVAP Fuel Vapor Temperature sensor and its wiring. Testing the sensor’s resistance and checking for any loose connections or damaged wires can help pinpoint the issue.
How to fix DTC P1194 on BMW
Fixing DTC P1194 on a BMW usually involves replacing the Cold Start EVAP Fuel Vapor Temperature sensor if it is found to be faulty. Additionally, repairing any damaged wiring or connectors in the sensor circuit may be necessary. Once the repairs are made, clearing the fault code and performing a test drive to ensure the issue is resolved is recommended.
How to erase DTC P1194 on BMW
To erase DTC P1194 on a BMW, a diagnostic scanner can be used to clear the fault code from the ECM’s memory. After the repair has been completed and the issue resolved, clearing the code will reset the check engine light and ensure that the fault does not reoccur.
Recommended tools & DTC Scanners for BMW
Best Diagnostic App for modern BMWs: BimmerLink
Recommended Bluetooth adapter for Bimmerlink: OBDLink CX
Cable adapter for Bimmerlink: Enet Cable USB Type C
For older BMWs we recommend: Autel AutoLink AL319 (2024 version)
Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter
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