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What is error code- P1346 and P1349?

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Old Jul 25, 2019 | 09:08 PM
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Default What is error code- P1346 and P1349?

Hi.
My car is LS430, 2001. very old and nice car.

Today, occured fault code "P1346" and "P1349".
And RPM is very unstable and sometime stop the engine.

What is mean this code and What part's must replace or repair?



Last edited by RA40; Jul 26, 2019 at 12:56 PM. Reason: descriptive title
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Old Jul 26, 2019 | 04:16 AM
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Check the resistance of your VVT (Variable Valve Timing) sensors per the instructions below. If the resistance is out-of-range, replace the sensor. If the resistance is good, check your connectors and wires for damage.

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Old Jul 26, 2019 | 05:24 AM
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By the way, "Bank 1" is on the driver-side of a US model LS430.
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Old Jul 26, 2019 | 08:35 PM
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I'd check the VVT solenoid for bank 1 first before removing the intake manifold as is introduced here below. It has higher possibility to fail and is easier to check.
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Old Jul 27, 2019 | 03:28 AM
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Originally Posted by Yamae
I'd check the VVT solenoid for bank 1 first before removing the intake manifold as is introduced here below. It has higher possibility to fail and is easier to check.
https://www.youtube.com/watch?v=9zT34XJ6z28
The previous photo (with manifold removed) was for clarity. Here is another photo (with manifold in place) of where the Bank 1 VVT Sensor is located. Sorry for the confusion, but you do not have to remove the manifold to access it.

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Old Aug 2, 2019 | 04:06 AM
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Thank's your advise. I was replace OCV. and return to good condition.
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