Hesitation and pulsing throttle

Tiny
MMPRINCE4000
  • MECHANIC
  • 8,549 POSTS
Other code is O2 sensor, but if not going into closed loop control, it will run rich and chug.

If this has been going on for a long time, the catalytic converter may be clogged or partially clogged.
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Wednesday, June 13th, 2018 AT 4:53 PM (Merged)
Tiny
LEPERCHRON
  • MEMBER
  • 11 POSTS
It starts to stumble more after I have replaced the o2, also replaced the MAF sensor with refurbished one. Also, went down a street going sixty mph let off the pedal and it felt like about max twenty km when it said about forty to fifty km. Thanks.
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Wednesday, June 13th, 2018 AT 4:53 PM (Merged)

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