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Regulator to eliminate P0301 code

Tiny
MASTEROFDISASTER
  • MEMBER
  • 1997 CADILLAC DEVILLE CONCOURS
  • V8
  • 84,000 MILES
I have seen here a replaced regulator overcame p0301 and other dtc codes on Toyota. Where would I find regulator on my car listed above, if there is one? Will be replacing EGR and plugs today so may want to replace that regulator as well. Thanks, rg
Tuesday, July 30th, 2019 AT 8:31 AM

3 Replies

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
Hi,

Are you referring to the fuel pressure regulator? If so, they can cause misfires if they are not allowing the proper fuel pressure but it normally effects more than one cylinder. I attached the process of how to replace this. Plus a guide on how to test fuel pressure.

Let me know if you have more questions. Thanks

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
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Tuesday, July 30th, 2019 AT 2:51 PM
Tiny
MASTEROFDISASTER
  • MEMBER
  • 4 POSTS
Thanks Kenny.
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Tuesday, July 30th, 2019 AT 9:04 PM
Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
You are welcome. Thanks for using 2CarPros. Come back if you have more issues. Thanks.
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Wednesday, July 31st, 2019 AT 7:03 AM

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