P1110 – Nissan – Intake Valve Timing Control Bank 1

The OBDII trouble code of P1110 is typically associated with Nissan or Infiniti vehicles. This check engine code refers to an issue with your Intake Valve Timing Control unit. The IVT valve utilizes oil passages to control the variable ignition timing on the intake side of your engine. If your oil passages become clogged or having poor oil pressure can cause this trouble code to trigger and show a check engine light.

This valve controls your engine oil to increase or decrease the ignition timing on the intake side of your engine. This helps your Nissan with low speed acceleration and increased combustion chamber scavenging, which increases fuel efficiency.

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This control valve unit can also be known as the IVT valve or the VTC valve. Failure of this component will trigger your Nissan trouble code. When your VTC valve begins to fail or go bad you can use a digital multimeter to check the function of your valve and make sure it’s working. Replacing your intake valve controller can restore your Nissan engine and clear your OBDII trouble code of P1110.

P1110 Possible symptoms

  • Inconsistent performance
  • Poor fuel economy
  • Ticking sound from engine bay
  • Check Engine Light ON

P1110 Description

Even though the P1110 check engine code is primarily a Nissan code, it can mean something totally different depending on your year make and model. Despite this is normally the Intake Valve Timing controller is to blame, there is a chance the P1110 code could mean something else. If you are not sure what your OBDII check engine light means, make sure to check our manufacturer tables to determine the code meaning.


Most of the time you can simply check the operation of your Intake valve controller by using a multimeter to test the internal resistance of the unit. Most of the time this will resolve your issue.

Have problems with your Intake valve timing guide or IVT valve or the VTC valve? Replaced your valve already but your P1110 trouble code isn’t going away? Leave us a message below and ask your question. Make sure to leave your year, make and model and we’ll be glad to assist you in any way we can.

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