Failed or contaminated camshaft position sensor B, often due to oil ingress or heat degradation of the sensor head; Damaged, chafed, or oil-soaked wiring harness between the sensor and the ECM, particularly where it routes near hot exhaust components; Corroded or loose electrical connector pins at the sensor or ECM, causing intermittent signal dropout; Metal debris or sludge buildup on the camshaft reluctor wheel or sensor tip, disturbing the magnetic signal; Stretched timing chain or worn variable valve timing (VVT) phaser components causing the camshaft to deviate from its commanded position; Low oil pressure or sludged oil galleries affecting VVT phaser operation and camshaft timing; Rarely, an internal ECM fault on the camshaft sensor input circuit

DTC codes / Jaguar codes / P1341

P1341 · JaguarCamshaft Position Sensor B Circuit Range Performance

Q: What does code P1341 mean?

Camshaft Position Sensor B Circuit Range Performance. P1341 on a Jaguar means the engine control module (ECM) has detected that the camshaft position sensor B circuit is reporting a signal that falls outside the expected range or performance window for the current engine operating conditions. The ECM compares the camshaft signal against the crankshaft position sensor and knows the camshaft should be in a specific relationship, so a range or performance fault means the signal is present but implausible, erratic, or not switching cleanly rather than being completely absent.

P1341 on a Jaguar means the engine control module (ECM) has detected that the camshaft position sensor B circuit is reporting a signal that falls outside the expected range or performance window for the current engine operating conditions. The ECM compares the camshaft signal against the crankshaft position sensor and knows the camshaft should be in a specific relationship, so a range or performance fault means the signal is present but implausible, erratic, or not switching cleanly rather than being completely absent.

SystemPowertrain

Code typeJaguar specific

SeverityMedium

Fix difficultyIntermediate

AreaIgnition system and misfire

Symptoms you may notice

Illumination of the check engine light, often with no other symptoms besides the warning light
Intermittent rough idle or stumbling, especially when the engine is cold or after a hot restart
Reduced engine performance or a noticeable lack of power under acceleration
Occasional extended cranking before the engine fires, or a stall shortly after startup
Poor fuel economy or a rich-running smell from the exhaust
In some cases the engine may enter limp mode or limit revs to protect the variable valve timing system

Common causes, most likely first

Failed or contaminated camshaft position sensor B, often due to oil ingress or heat degradation of the sensor head
Damaged, chafed, or oil-soaked wiring harness between the sensor and the ECM, particularly where it routes near hot exhaust components
Corroded or loose electrical connector pins at the sensor or ECM, causing intermittent signal dropout
Metal debris or sludge buildup on the camshaft reluctor wheel or sensor tip, disturbing the magnetic signal
Stretched timing chain or worn variable valve timing (VVT) phaser components causing the camshaft to deviate from its commanded position
Low oil pressure or sludged oil galleries affecting VVT phaser operation and camshaft timing
Rarely, an internal ECM fault on the camshaft sensor input circuit

How to diagnose and fix it

Read all stored and pending codes with a Jaguar-capable scan tool and record freeze-frame data for P1341 before clearing anything
Visually inspect the camshaft position sensor B, its connector, and the wiring harness for oil contamination, chafing, or heat damage
Check the sensor signal with an oscilloscope or a graphing multimeter while cranking and running, looking for a clean square wave with correct amplitude
Remove the sensor and inspect the tip and reluctor wheel for metal shavings, sludge, or mechanical damage
Measure sensor supply voltage and ground at the connector with the key on, and check for voltage drops across the ground circuit
Verify camshaft timing against the crankshaft with a scan tool live data or mechanical timing check if the signal is clean but the code persists
Replace the camshaft position sensor B only after electrical and mechanical checks confirm it is the faulty component, then clear codes and verify the repair

What a P1341 on a Jaguar really means

A P1341 is a range or performance fault, not a circuit failure, so the sensor is often still producing a signal and the problem lies in signal quality, timing correlation, or intermittent connection rather than a dead sensor.
Oil contamination from a leaking cam cover gasket or a failed sensor seal is one of the most common causes on Jaguar V6 and V8 engines, and replacing the sensor without fixing the leak leads to a repeat failure.
A stretched timing chain or worn VVT phaser can set P1341 because the camshaft no longer arrives at the position the ECM expects, so always compare cam and crank signals before condemning the sensor.
Intermittent harness faults that only appear when the engine is hot or vibrating are frequently missed during a cold static test, so a wiggle test and a road test with live data are essential.
Some technicians replace the sensor B when the fault is actually a dirty reluctor wheel or a poor ground shared with other engine sensors, so check grounds and clean the wheel before parts swapping.

Can I keep driving with P1341?

You can usually drive a Jaguar with P1341 to a workshop, but avoid heavy acceleration, towing, or long trips because the fault can worsen into a stall or limp mode. If the engine runs roughly, stalls, or the check engine light flashes, stop driving and arrange a diagnostic scan promptly.

Tools that help

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Guidance is general and written for Jaguar vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.