Fuel pressure car is still hesitant?

Tiny
ROBERTS.EDWARD93
  • MEMBER
  • 2020 HYUNDAI TUCSON
  • 85,000 MILES
So I replaced fuel pump assembly fuel pressure sensor and high pressure fuel pump and my car is still hesitant. Is there any other thing I can replace to fix the problem
Sunday, December 14th, 2025 AT 8:45 AM

4 Replies

Tiny
STEVE W.
  • MECHANIC
  • 15,278 POSTS
Which engine? 2wd or AWD? What do you mean by hesitant? What does it actually do? Any CEL or other lights on? Flashing? What did the pump pressures do during testing?
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Sunday, December 14th, 2025 AT 2:34 PM
Tiny
ROBERTS.EDWARD93
  • MEMBER
  • 3 POSTS
It’s a 2.0 awd check engine light is on and I will push the gas and it won’t accelerate very much and I will be driving and car feels like it’s kicking back
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Sunday, December 14th, 2025 AT 4:38 PM
Tiny
STEVE W.
  • MECHANIC
  • 15,278 POSTS
OK, that sounds like reduced power mode, what codes does it have? There are a lot of items that can trigger reduced power mode, fuel, ignition, transmission all can trigger it, even an issue in the braking system can cause it. From the "kicking back" it sounds like ignition or timing. So please list any codes it has in all the systems.
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Monday, December 15th, 2025 AT 7:16 AM
Tiny
ROBERTS.EDWARD93
  • MEMBER
  • 3 POSTS
The codes are p0090 p0091 p262b
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Monday, December 15th, 2025 AT 7:52 AM

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