Catalytic Converter

What is a Catalytic Converter?

The Catalytic Converter is part of the car Exhaust System system. We have 5 associated problem symptoms connected to it.

We also have 64 owner problems that mention it.

What problems can be caused by a faulty Catalytic Converter?
64 problems that mention the Catalytic Converter

Showing the latest 10, see more problems here

3
responses
Temperature gauge fluctuating

temperature gauge fluctuating, until it gets up to temperature. then remains steady at 90. but until then it beeps saying engine temp too hot, then goes to zero. last year, when coming up to temperatu...

2007 Peugeot 207 1.4 petrol
Posted: Oct 1, 2021
4
responses
Front passenger door not locking/unlocking

Front and rear doors lock stuck in locked position, I renewed both locking mech and back door is now fine but front door still not working, ie stays locked when operated in any way key/fob.. I welcome...

2006 Volkswagen Golf 2.0 tdi Sport
Posted: Jul 23, 2021
7
responses
Fuel pump relay not triggering.

Car won't start. Traced to fuel pump relay not operating. Replacement relay makes no difference but removing top of relay and pressing contacts together cures problem. Car starts and runs no proble...

2008 Skoda Octavia 1.9 tdi
Posted: Nov 6, 2020
8
responses
Rumbling under feet and middle of car

When driving from start funny rumbling noise under feet and down middle of car when idling no noise ?

2004 Citroen Xsara Picasso Dears Picasso desire petrol auto.
Posted: Aug 20, 2020
1
response
Fan comes on too quick

my fan,it kicks in within 10 minutes of driving the car had the problem checked out and the guy replaced the temperature sensor and it's wiring +plug, but problem still persists,i recently had oil,pl...

2009 Peugeot 308 1.4
Posted: Jan 17, 2020
7
responses
Engine Management Light On

The engine management light is on. When tested, comes up with a message 'Bank 1 Oxygen Sensor' . But it is not the oxygen sensor. Engine runs fine. What is the next step to take.

2014 Ford Fiesta 1L Eco-Booster
Posted: Sep 17, 2018
2
responses
Catalytic Converter, Alignment, & EPC too

2011 Polo owned from new, petrol, local commuting only. On way home warning lights started - the wheel alignment/traction (?) (Yellow) and Catalytic Converter (Yellow) came on together. I thought Id g...

2011 Volkswagen Polo
Posted: Aug 8, 2017
1
response
Control indicator for exhaust

Engine like shape light has come on on dashboard what should i do .Can i still drive car without damadge.

2007 Vauxhall Zafira
Posted: Feb 21, 2016
3
responses
Engine Management Light flashing and staying on

Car is stuttering whilst being driven. Car is also jumpy when idle at traffic lights, why is it doing this?

2011 Vauxhall Corsa 1.2 sxi
Posted: Nov 4, 2015
1
response
Dash light

Hi i have done the peddal test on my car and got a code p0303 the car is not in limp mode it starts ok its sounds a bit lumpey thanks for your help

2003 Vauxhall Astra 1.6 man
Posted: Aug 1, 2015
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