Recurring P0420 code on 2001 Tacoma 3.4L, manual trans. 288,000mi.

Asked by Colt_3984 Feb 05, 2017 at 10:54 AM about the 2001 Toyota Tacoma 2 Dr V6 4WD Extended Cab LB

Question type: Maintenance & Repair

Replaced O2 sensor on Bank 1. What other engine management sensors need to be checked or replaced.  Data recorded in freeze frame varies as to temp, rpm, speed, etc.

1 Answer
35,405

lrodri911 answered 7 years ago

Have it checked with live data scanner, it could be the catalytic converter getting plugfed

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