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Qaagi - Book of Why

Causes

Effects

Toyota guru's--- car keepssettingp0420 code

AMHello , I have a 2000 Seville STS , with 105,000 miles on itsetcode P0420

an engine problem that ’s pouring too much fuel into the catalytic converter , excess fuel that the PCM ca n’t control , a vacuum leak(passive) can be caused byThe code P0420

conditionstriggercode P0420

jpg main relay replace ( warning high voltage dc wil kill youcan triggerp0420 code

It startedsettingcode P0420

repairs ... an exhaust leakhad ... causeda code P0420

my aftermarket downpipe(passive) caused byP0420 code

the " $ 5 fix " on my 99 Foresterto preventP0420 code

when the computer detects a fault in the three way catalytic converter circuit(passive) is setcode P0420

the ECM continuesto setcode P0420

the catalyst , O2 sensors(passive) can be caused byThe code P0420

The catalytic converter may failsettinga code p0420

when the catalyst 's oxygen storage capacity is less than an acceptable threshold(passive) is setCode P0420

usually(passive) is ... setThe code P0420

when the computer(ECU ) found out that the O2 level of the downstream sensor is not steady or the gap between two sensors is not as intended(which means the catalyst converter is not working as efficiently(passive) is setThe code P0420

A bad catalytic convertercan causethe code P0420

when the system is not efficientwill setwhen the system is not efficient

for catalyst system efficiency below threshold b1setfor catalyst system efficiency below threshold b1

the computer to put the transmission in limp mode to protect the catalytic converterwill causethe computer to put the transmission in limp mode to protect the catalytic converter

in your 2000 Toyota Solarasettingin your 2000 Toyota Solara

with a new convertermay set due to outgassing of the mat materialwith a new converter

when the catalytic converter is failingsetswhen the catalytic converter is failing

when there is low efficiency with the catalytic converterwill setwhen there is low efficiency with the catalytic converter

you to failwill causeyou to fail

Most of the times(passive) is causedMost of the times

on 2006 chrysler sebring , what is most likelyseton 2006 chrysler sebring , what is most likely

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Smart Reasoning:

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