P0341 on Acura
Camshaft Position Sensor Circuit Range/Performance (Bank 1)
P0341 on Acura vehicles indicates camshaft position sensor circuit range/performance (bank 1). Au7o has documented this code across 3 Acura models — most commonly on ILX, MDX, TSX. This code means the camshaft position sensor on Bank 1 is sending a signal that is present but doesn't make sense to the engine computer (a range/performance fault), often because it disagrees with the crankshaft position signal. The cam sensor tells the computer where the camshaft is so it can correctly time fuel injection and spark, and on engines with variable valve timing it also confirms cam phaser movement. When the signal is out of range, intermittent, or doesn't correlate properly, the computer flags this code, and you may notice hard starting, rough running, or reduced power. Causes are commonly a worn sensor, a stretched timing chain, or a problem with the cam phaser/tone ring. Typical repair costs on Acura range from $400 to $2,200, depending on the specific model and root cause.
Common Causes of P0341
- •Failed or weak camshaft position sensor
- •Damaged or corroded sensor wiring/connector
- •Stretched or worn timing chain causing cam timing drift
- •Faulty variable valve timing (VVT) cam phaser or solenoid
- •Damaged camshaft reluctor (tone) ring
- •Low or dirty engine oil affecting VVT operation
- •Incorrect sensor air gap or installation
- •Faulty PCM/ECM (rare)
P0341 on Acura by Model
Acura ILX(1 issue)
- VTC Actuator Cold-Start Rattle (2.4L K24 Only)2013-2022
On the 2.4L K24 ILX, the variable timing control (VTC) actuator on the intake camshaft is not fully oil-pressurized at first start. The internal locking pin fails to hold the actuator against the sprocket, so for one to two seconds after a cold start the actuator rattles loudly against its stops - a hard metallic grinding or 'bag of bolts' sound from the front of the engine that disappears once oil pressure builds. It is worst in cold weather, after the car has sat overnight, and with stretched oil-change intervals. This is an all-K24-family pattern documented from roughly 2008 onward across Honda and Acura four-cylinders and it carries into the ILX's 2.4. It does NOT apply to the 2.0L R20 or the 1.5L hybrid, which use a different valvetrain, and merging it into a generic 'ILX engine noise' issue is the classic mistake on this nameplate.
Acura MDX(1 issue)
- Timing Belt Tensioner and Water Pump Failure2001-2006
First-generation MDX models with the J35 V6 are prone to timing belt tensioner bearing failure and simultaneous water pump leaks when the timing belt service is neglected past 105,000 miles. The hydraulic tensioner loses pressure, allowing the belt to skip teeth and potentially bend valves on this interference engine.
Acura TSX(2 issues)
- Timing Chain Stretch Setting P0017 Cam/Crank Correlation - K24Z32009-2014
On the second-generation 2.4L K24Z3 the timing chain and its hydraulic tensioner wear enough for the exhaust cam to fall out of correlation with the crankshaft, setting P0017 (Crankshaft Position - Camshaft Position Correlation, Bank 1 Sensor B). This is the downstream consequence of the same wear pattern that produces the VTC rattle, and the two are routinely repaired together. The K24 is an interference design, so a chain that jumps a tooth under load can put valves into pistons. Owners typically report the cold-start rattle first, then a check engine light and rough running months later - the code is the point at which the repair is no longer optional.
- VTC (Variable Timing Control) Actuator Rattle on Cold Start - K24Z32004-2014
The signature second-generation TSX complaint. At cold start-up the 2.4L K24Z3 emits a loud metallic rattle or grind from the front of the engine lasting roughly 1-3 seconds, then goes quiet. The cause is a defective intake-cam VTC actuator whose internal lock pin fails to hold the actuator at the rest position while oil pressure builds, letting the actuator slap against its stop. Acura acknowledged this in Service Bulletin 10-024 'Engine Rattles at Cold Start-Up' covering 2009-2010 TSX L4 models, naming the VTC actuator (P/N 14310-R40-A01) as the cause. The same rattle occurs on the first-generation CL9 K24A2 (actuator P/N 14310-RBB-003) but is markedly less common there. Left alone the rattle itself is not immediately destructive, but it commonly appears alongside timing chain wear and is the leading warning sign of it.
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View P0341 across all makes →Frequently Asked Questions
What does P0341 mean on Acura?▼
P0341 stands for "Camshaft Position Sensor Circuit Range/Performance (Bank 1)." This code means the camshaft position sensor on Bank 1 is sending a signal that is present but doesn't make sense to the engine computer (a range/performance fault), often because it disagrees with the crankshaft position signal. The cam sensor tells the computer where the camshaft is so it can correctly time fuel injection and spark, and on engines with variable valve timing it also confirms cam phaser movement. When the signal is out of range, intermittent, or doesn't correlate properly, the computer flags this code, and you may notice hard starting, rough running, or reduced power. Causes are commonly a worn sensor, a stretched timing chain, or a problem with the cam phaser/tone ring. On Acura specifically, this code is documented across 3 models.
What causes P0341 on Acura vehicles?▼
Common causes on Acura: Failed or weak camshaft position sensor, Damaged or corroded sensor wiring/connector, Stretched or worn timing chain causing cam timing drift, Faulty variable valve timing (VVT) cam phaser or solenoid, Damaged camshaft reluctor (tone) ring. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0341 on a Acura?▼
Repair costs on Acura range from $400 to $2,200, depending on the specific model and root cause.
Which Acura models have P0341 documented?▼
Au7o has documented P0341 on 3 Acura models: ILX, MDX, TSX.