# 2000 Nissan Pickup fault code

**URL:** <https://community.cartalk.com/t/2000-nissan-pickup-fault-code/119424>\
**Category:** Maintenance/Repairs\
**Tags:** nissan, pickup\
**Created:** [June 18, 2018, 10:30pm UTC](https://community.cartalk.com/t/2000-nissan-pickup-fault-code/119424 "2018-06-18T22:30:15Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Bob13](https://avatars.discourse-cdn.com/v4/letter/b/c2a13f/32.png) [@Bob13](https://community.cartalk.com/u/Bob13)\
**Post date:** [June 18, 2018, 10:30pm UTC](https://community.cartalk.com/t/2000-nissan-pickup-fault-code/119424/1 "2018-06-18T22:30:15Z")

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P044 code on 2000 frontier 4cyl with 110,000 miles. what is most likely cause???

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**Author:** ![Yosemite](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/yosemite/32/643_2.png) [@Yosemite](https://community.cartalk.com/u/Yosemite)\
**Post date:** [June 18, 2018, 11:23pm UTC](https://community.cartalk.com/t/2000-nissan-pickup-fault-code/119424/2 "2018-06-18T23:23:21Z")

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PO44 engine code:

The engine control module (ECM) has detected a leak in the fuel tank vapor system or a vapor pressure sensor has malfunctioned.

This indicates is that the EVAP system will not create a significant vacuum when it performs its leak test, as monitored by the Fuel Tank Pressure Sensor.

Yosemite

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**Author:** ![It\_s-Me](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/it_s-me/32/12660_2.png) [@It\_s-Me](https://community.cartalk.com/u/It_s-Me)\
**Post date:** [June 19, 2018, 1:31am UTC](https://community.cartalk.com/t/2000-nissan-pickup-fault-code/119424/3 "2018-06-19T01:31:07Z")

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Could be as simple as a loose or bad gas cap, at 18 years old that’s where I’d start

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**Author:** ![NYBo](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nybo/32/17281_2.png) [@NYBo](https://community.cartalk.com/u/NYBo)\
**Post date:** [June 19, 2018, 1:39am UTC](https://community.cartalk.com/t/2000-nissan-pickup-fault-code/119424/4 "2018-06-19T01:39:53Z")

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That’s not a valid code. You are missing a digit.

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**Author:** ![Yosemite](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/yosemite/32/643_2.png) [@Yosemite](https://community.cartalk.com/u/Yosemite)\
**Post date:** [June 20, 2018, 12:42am UTC](https://community.cartalk.com/t/2000-nissan-pickup-fault-code/119424/5 "2018-06-20T00:42:12Z")

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You are right @NYBo.

Even I left off the last digit. Must be catching!!!

Yosemite

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**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\
**Post date:** [June 20, 2018, 3:50am UTC](https://community.cartalk.com/t/2000-nissan-pickup-fault-code/119424/6 "2018-06-20T03:50:27Z")

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Is the code actually p0440 OP?