P1123 error code

1998 NISSAN X-TRAIL
220,000 MILES • 2.0L • 4 CYL • 4WD • AUTOMATIC
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NYEVE
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  • 1 POST
Keeps on giving p1123 error. engine cranks but does not start.
Oct 26, 2019 at 7:17 PM
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STRAILER
  • ASE Certified Mechanic
  • 54,832 POSTS
  • ASE Certified Mechanic
Hello

P1123 Throttle Position Sensor Circuit Intermittent High Voltage which should cause the engine not to start. When you turn the key to the on position without cranking the engine over can you hear the fuel pump run in the tank for 5 seconds?

This guide can help us fix the problem:

https://www.2carpros.com/articles/car-cranks-but-wont-start

Can you please shoot a quick video with your phone so we can see what's going on? that would be great. You can upload it here with your response.Please run down this guide and report back.
Oct 28, 2019 at 1:08 PM
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