Skip the auto shop - Our mechanics make house calls

Q: Can a bad cam seal cause a p0041 code in a 2001 1.8t engine? There is oil in 2 of the spark plug holes, timing belt is good

asked by on

Can a bad cam seal cause a p0041 code (over retarded bank 1) in a 2001 1.8t engine? There is oil in 2 of the spark plug holes, but the timing belt appears to be fine.

My car has 184000 miles.
My car has a manual transmission.

A: Hi there - no, a leaking cam seal will not ...

Hi there - no, a leaking cam seal will not cause a P0041, but it will cause misfires from shorting between the plug and cylinder head because of the oil leak on the plugs and coil boots. A P0041 code is indicative of swapped cables between the 2 O2 sensors (Bank 1 and Bank2). Possibly a re-installation or O2 sensor replacement issue? I would recommend having a Valve Cover Gasket Replacement completed by a mobile, professional mechanic, such as one from YourMechanic, to address the oil leak.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Replaced 2 camshaft sensors and crankshaft sensor, codes coming back on straight away 2001 Honda Stream

Hi there - you don't specify which codes are being set, which might be helpful. If you're getting codes that the sensor itself is malfunctioning, it is possible to get a new sensor that is bad - not often, but...

Q: Lost first and second gear

Hi. With those symptoms, 99% of the time the transmission is shot. Black fluid means that the clutches inside were slipping, and got hot enough to burn the fluid. You have a few choices. Replace the transmission with a used...

Q: Car will not move

Hello, thank you for writing in. While these issues are frustrating, it is best to take this kind of diagnosis step by step. The most common cause of these symptoms is low transmission fluid. The automatic transmission relies on the...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.