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2012 1.8 lt 5SP
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Discussion Starter · #1 ·
Hi I am Rory

I am in Cape Town ZA

i suppose you all will find this easy to remedy but your resources here are limited
Chevrolet GM left ZA 2 years ago so its bad if you have a Chevrolet
I removed my cat 1.8 lt manual 2012 model.
I installed a cat Fouler and new rear(downstream) o2 sensor Bosch Exact Fit Oxygen Sensor 16736
but the engien light stays on. Rear o2 sensor obviously not performing as should

what can i do to eliminate this ?

regards
Rory
 

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Administrator
2014 LT program car, Pull Me Over Red, 1.4T Auto
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12,644 Posts
Hi I am Rory

I am in Cape Town ZA

i suppose you all will find this easy to remedy but your resources here are limited
Chevrolet GM left ZA 2 years ago so its bad if you have a Chevrolet
I removed my cat 1.8 lt manual 2012 model.
I installed a cat Fouler and new rear(downstream) o2 sensor Bosch Exact Fit Oxygen Sensor 16736
but the engien light stays on. Rear o2 sensor obviously not performing as should

what can i do to eliminate this ?

regards
Rory
Welcome Aboard!(y)

What is a cat fowler? What is the code causing the MIL (engine light)?

Don't forget to introduce yourself and your Cruze here.
 

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Registered
2012 1.8 lt 5SP
Joined
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7 Posts
Discussion Starter · #3 ·
Welcome Aboard!(y)

What is a cat fowler? What is the code causing the MIL (engine light)?

Don't forget to introduce yourself and your Cruze here.
Thanks for the welcome

I am new to forums so i am a lil green behind the ears.
 

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Registered
2012 1.8 lt 5SP
Joined
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7 Posts
Discussion Starter · #4 ·
Welcome Aboard!(y)

What is a cat fowler? What is the code causing the MIL (engine light)?

Don't forget to introduce yourself and your Cruze here.
Ok the part tht i fitted along with the new sensor is called a spark plug non Fowler
the error code is P0420
 

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Administrator
2014 LT program car, Pull Me Over Red, 1.4T Auto
Joined
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12,644 Posts
Ok the part tht i fitted along with the new sensor is called a spark plug non Fowler
the error code is P0420
Do you have a link to an article or video to this? I still have no idea what a fowler is?

A code P0420 may mean that one or more of the following has happened:

Leaded fuel was used where unleaded was called for (unlikely)
A damaged or failed oxygen / O2 sensor
Downstream oxygen sensor (HO2S) wiring damaged or connected improperly
The engine coolant temperature sensor is not working properly
Damaged or leaking exhaust manifold / catalytic converter / muffler / exhaust pipe
Failed or underperforming catalytic converter (likely)
Retarded spark timing
The oxygen sensors in front and behind the converter are reporting too similar of readings
Leaking fuel injector or high fuel pressure
Cylinder misfire
Oil contamination
Read more at: P0420 Catalyst System Efficiency Below Threshold
 
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