P1349 Ford Code – High Input of Fuel Level Sensor Circuit “B

Possible Causes

NOTE: The listed causes may not be a complete list of all potential issues and there may be other causes.

  • Faulty fuel level sensor
  • Fuel level sensor harness is open or shorted
  • Poor electrical connection in fuel level sensor circuit

Description

The high input of fuel level sensor circuit “B” is the generic description for Ford code P1349, but the manufacturer may have a different description for your vehicle model and year. Currently, we have no other information about Ford OBDII code P1349.

P1349 Ford Code – High Input of Fuel Level Sensor Circuit “B”

How to Fix

Check the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

  • Check Engine Light on (or Service Engine Soon warning light)

P1349 GMC Code – Intake Camshaft Position System Conditions

Possible Causes

NOTE: The listed causes may not be a complete list of all potential problems and there may be other causes.

  • Faulty intake camshaft position sensor
  • Intake camshaft position sensor harness is open or shorted
  • Poor electrical connection in the intake camshaft position sensor circuit

Description

With the engine running, the engine coolant temperature sensor (ECT) input is above 158°F, VSS input is above 5 mph, the PCM did not detect a change in camshaft timing with the active CMP actuator, or the PCM detected that camshaft timing was corrected, either condition was met for 20 seconds.

How to Repair

Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

  • Engine light on (or service engine soon warning light)

P1349 Code Lexus – Variable Valve Timing System Malfunction, Bank 1

Possible Causes

NOTE: The listed causes may not be a complete list of all potential problems and there may be other causes.

  • Dirty or low engine oil
  • Valve timing
  • Oil control valve
  • Variable valve timing controller assembly
  • Engine control module (ECM)

Technical Notes

Description

The variable valve timing (VVT) system controls the intake valve timing to achieve proper timing in response to driving conditions. The engine control module (ECM) controls the oil control valve (OCV) to ensure correct intake valve timing, and the oil pressure controlled by the OCV is supplied to the VVT controller, then the VVT controller changes the relative position between the camshaft and the crankshaft. Code P1349 is triggered when the valve timing does not change from the current valve timing or when the current valve timing is fixed.

How to Repair

Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

  • Engine light on (or service engine soon warning light)

P1349 MINI Code – Cylinder 4 Misfire with Fuel Cut-Off

Possible Causes

NOTE: The listed causes may not be a complete list of all potential issues and there may be other causes.

  • Faulty spark plug
  • Faulty ignition coil
  • Intake vacuum leak
  • Faulty camshaft position sensor
  • Ignition coil harness is open or shorted
  • Poor electrical connection in ignition coil circuit

Description

Under CARB/OBD regulations, the Engine Control Module (ECM) must determine if a misfire is occurring and also identify the specific cylinder(s) and severity of the misfire event, and whether it is an emissions problem or damaging to the catalyst. To accomplish these tasks, the control module monitors the crankshaft for acceleration losses during the firing segments of each cylinder according to the firing order.
The misfire/engine roughness calculation is derived from differences in the period duration (T) of individual gear segments. Each segment period consists of an angular range of 120° crankshaft angle starting 78° before Top Dead Center (TDC).
If the expected period duration exceeds the allowed value, a misfire fault for the affected cylinder is stored in the ECM fault memory. Depending on the measured misfire level, the control unit will illuminate the Service Engine Soon light, may cut fuel to the particular cylinder, and may switch lambda operation to open loop. All misfire faults are weighted to determine whether misfires are emissions-related or damaging to the catalyst.

How to Repair

Check the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

  • Engine Light On (or Service Engine Soon Warning Light)

P1349 Code Toyota – Variable Valve Timing System Malfunction, Bank 1

Possible Causes

NOTE: The listed causes may not be a complete list of all potential problems and there may be other causes.

  • Dirty or low engine oil
  • Valve timing
  • Oil control valve
  • Variable valve timing controller assembly
  • Engine control module (ECM)

Description

The Variable Valve Timing (VVT) system controls the intake valve timing to achieve proper timing in response to driving conditions. The engine control module (ECM) controls the oil control valve (OCV) to ensure correct intake valve timing, and the oil pressure controlled by the OCV is supplied to the VVT controller. The VVT controller then changes the relative position between the camshaft and the crankshaft. Code P1349 is triggered when the valve timing does not change from the current valve timing or when the current valve timing is fixed.

How to Repair

Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

  • Engine light on (or service engine soon warning light)

P1349 Code Volkswagen – Open Circuit in Ignition Coil Power Output Stage 2

Possible Causes

NOTE: The listed causes may not be a complete list of all potential problems and there may be other causes.

  • Faulty ignition coil
  • Ignition coil harness is open or shorted
  • Poor electrical connection in ignition coil circuit

Description

The open circuit in ignition coil power output stage 2 is the generic description for Volkswagen P1349 code, but the manufacturer may have a different description for your specific model and vehicle year. Currently, we have no additional information about Volkswagen OBDII P1349 code.

How to Repair

Check the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

  • Engine light on (or service engine soon warning light)

P1350 BMW Code – Cylinder 5 Misfire During Startup

Possible Causes

NOTE: The listed causes may not be a complete list of all potential problems and there may be other causes.

  • Faulty spark plug
  • Faulty ignition coil
  • Intake vacuum leak
  • Faulty camshaft position sensor
  • Ignition coil harness is open or shorted
  • Poor electrical connection in ignition coil circuit

Description

Under CARB/OBD regulations, the Engine Control Module (ECM) must determine if a misfire is occurring and also identify the specific cylinder(s) and the severity of the misfire event and whether it is an emissions problem or damaging to the catalyst. To accomplish these tasks, the control module monitors the crankshaft for acceleration losses during the firing segments of each cylinder according to the firing order.
The misfire/engine roughness calculation is derived from differences in the period duration (T) of individual gear segments. Each segment period consists of an angular range of 120° crankshaft angle that begins 78° before top dead center (TDC).
If the expected period duration is greater than the allowed value, a misfire fault for the affected cylinder is stored in the ECM fault memory. Depending on the measured misfire level, the control unit will illuminate the Service Engine Soon light, may cut fuel to the particular cylinder, and may switch lambda operation to open loop. All misfire faults are weighted to determine whether misfires are emissions-related or damaging to the catalyst.

How to Repair

Check the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

  • Engine Light On (or Service Engine Soon Warning Light)

P1350 Code Cadillac – Ignition Control System

Possible Causes

NOTE: The listed causes may not be a complete list of all potential issues and there may be other causes.

  • Faulty ignition control module
  • Ignition control module harness is open or shorted
  • Poor electrical connection in the ignition control module circuit

Description

The ignition control module (ICM) has independent power and ground circuits. The circuits between the ICM and the powertrain control module (PCM) consist of the following circuits: – Ignition control (IC) timing signal – IC timing control – Low resolution engine speed signal – Medium resolution engine signal – Camshaft position signal – Low reference The ICM sends 3X signals to the PCM and controls ignition timing during engine starting. Ignition timing transitions to PCM control after the following actions occur: The PCM receives the second 3X signal. The PCM applies 5 volts to the ignition control (IC) timing signal circuit. The ICM monitors the CKP timing signal when the engine starts. The CKP timing signal is transmitted from the CKP sensor to the ICM on the CKP sensor 2 signal circuit. The CKP timing signal is used to determine the correct cylinder pair and initiate the ignition coil firing sequence. The 18X reference pulses are transmitted from the CKP sensor to the ICM on the CKP sensor 1 circuit. The 18X reference pulses are used for fuel injection and ignition control. Once the ICM receives both signals, the ICM transmits the 18X and 3X reference signals to the PCM. The CMP and CKP sensors share a 12-volt reference and low reference circuit. The CKP sensor consists of the following circuits: – 12 Volt reference – Low reference – CKP sensor 1 signal – CKP sensor 2 signal.

How to Repair

Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Detected

The powertrain control module (PCM) detects an open in the ignition control module (ICM)

Possible Symptoms

  • Engine Light On (or Service Engine Soon Warning Light)

Chevrolet Code P1350 – Ignition Control System

Possible Causes

NOTE: The listed causes may not be a complete list of all potential problems and there may be other causes.

  • Faulty ignition control module
  • Ignition control module harness is open or shorted
  • Poor electrical connection in the ignition control module circuit

Description

The ignition control module (ICM) has independent power and ground circuits. The circuits between the ICM and the powertrain control module (PCM) consist of the following circuits: -Ignition control (IC) synchronization signal -IC synchronization control -Low resolution engine speed signal -Medium resolution engine signal -Camshaft position signal -Low reference The ICM sends 3X signals to the PCM and controls ignition timing during engine starting. Ignition timing transitions to PCM control after the following actions occur: The PCM receives the second 3X signal. The PCM applies 5 volts to the ignition control (IC) synchronization signal circuit. The ICM monitors the CKP synchronization signal when the engine starts. The CKP synchronization signal is transmitted from the CKP sensor to the ICM on the CKP sensor 2 signal circuit. The CKP synchronization signal is used to determine the correct cylinder pair and initiate the ignition coil firing sequence. The 18X reference pulses are transmitted from the CKP sensor to the ICM on the CKP sensor 1 circuit. The 18X reference pulses are used for fuel injection and ignition control. Once the ICM has received both signals, the ICM transmits the 18X and 3X reference signals to the PCM. The CMP and CKP sensors share a 12-volt reference and low reference circuit. The CKP sensor consists of the following circuits: -A 12 Volt reference -A low reference -A CKP sensor 1 signal -A CKP sensor 2 signal

How to Repair

Check the “Possible Causes” listed above. Visually inspect the related wire harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Detected

The powertrain control module (PCM) detects an open in the ignition control module (ICM)

Possible Symptoms

  • Engine Light On (or Service Engine Soon Warning Light)

Code P1350 GMC – Ignition Control System

Possible Causes

NOTE: The listed causes may not be a complete list of all potential issues and there may be other causes.

  • Faulty ignition control module
  • Ignition control module harness is open or shorted
  • Poor electrical connection in ignition control module circuit

Description

The ignition control module (ICM) has independent power and ground circuits. The circuits between the ICM and powertrain control module (PCM) consist of the following circuits: -Ignition control synchronization signal -IC synchronization control -Low resolution engine speed signal -Medium resolution engine signal -Camshaft position signal -Low reference The ICM sends 3X signals to the PCM and controls ignition timing during engine starting. Ignition timing transitions to PCM control after the following actions occur: The PCM receives the second 3X signal. The PCM applies 5 volts to the ignition control synchronization signal circuit. The ICM monitors the CKP synchronization signal when the engine starts. The CKP synchronization signal is transmitted from the CKP sensor to the ICM on the CKP sensor signal 2 circuit. The CKP synchronization signal is used to determine the correct cylinder pair and initiate the ignition coil firing sequence. The 18X reference pulses are transmitted from the CKP sensor to the ICM on the CKP sensor 1 circuit. The 18X reference pulses are used for fuel injection and ignition control. Once the ICM has received both signals, the ICM transmits the 18X and 3X reference signals to the PCM. The CMP and CKP sensors share a 12-volt reference and low reference circuit. The CKP sensor consists of the following circuits: -A 12 Volt reference -A low reference -A CKP sensor signal 1 -A CKP sensor signal 2

How to Repair

Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Detected

The powertrain control module (PCM) detects an open in the ignition control module (ICM)

Possible Symptoms

  • Engine Light On (or Service Engine Soon Warning Light)