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Seems to be running rich?

Tiny
MADMARIO
  • MEMBER
  • 1997 TOYOTA 4RUNNER
  • 6 CYL
  • 4WD
  • MANUAL
  • 160,000 MILES
Had a check engine code, misfire on cylinder 4. Had new wires and a recent tune up. I firgured it was the fuel injector. Replaced it with a remaned injector. It fixed the problem. But seems to be running rich now. After driving it 15 milies or so the check engine light pops on when idling. Would apreciate any info you have for me thank you.
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Sunday, December 16th, 2007 AT 9:43 PM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Lets get the brain scanned for code/s and comeback with it so that we can start the diagnosis
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Monday, December 17th, 2007 AT 9:39 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,703 POSTS
It sounds like you have an exhaust leak which allows air into the system so the computer adds fuel or one of the fuel linwecjotrs is leaking, please go over this guide which tells the causes for a rich mixture and how to fix it.

https://www.2carpros.com/articles/why-an-automotive-engine-will-run-rich

Please go over this guide and get back to us.
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Friday, November 22nd, 2024 AT 4:10 PM

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