Codes P0335 and P0340, Timing Chain or something else?

QUALITY GUY

MEMBER
2001 NISSAN SENTRA
1.8L
4 CYL
2WD
MANUAL
250,000 MILES

The car is running fine, but then will just quit, like it's running out of gas. Won't restart, then after waiting will restart and run for a while then same thing over. Two codes P0335 and P0340. Car runs fine has a low idle, but just quits for no apparent reason. Mechanic indicates a loose timing chain, but car would run bad with a loose timing chain.

Sunday, February 25th, 2024 AT 1:57 PM

1 Reply

JACOBANDNICKOLAS

MECHANIC
110,055 POSTS

Hi,

What you described sounds like a crankshaft position sensor failing (both codes are related to the crankshaft position sensor). When they begin to fail, they are adversely affected by heat. When this happens, the ignition spark to the plugs is lost, and the engine stalls. After the sensor cools, the engine will restart until it hits that magic temperature.

Do me a favor. Take a look through this link and let me know if it mirrors what you are experiencing:

https://www.2carpros.com/articles/symptoms-of-a-bad-crankshaft-sensor

As far as the two codes you have, both are related to what I mentioned, the crankshaft position sensor. That is the first thing I would check/replace.

One other thought. The timing chain wouldn't cause the engine to act this way.

Let me know.

Take care,

Joe

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Sunday, February 25th, 2024 AT 7:43 PM