Exception in rendering!

Message: window is not defined

ReferenceError: window is not defined
    at new c (/tmp/execjs20161208-101629-wwpnrajs:136:3912)
    at m.mountComponent (/tmp/execjs20161208-101629-wwpnrajs:47:15602)
    at /tmp/execjs20161208-101629-wwpnrajs:49:31860
    at a.r.perform (/tmp/execjs20161208-101629-wwpnrajs:47:12503)
    at Object.a [as renderToString] (/tmp/execjs20161208-101629-wwpnrajs:49:31821)
    at r (/tmp/execjs20161208-101629-wwpnrajs:50:21164)
    at Object.S.ReactOnRails.serverRenderReactComponent (/tmp/execjs20161208-101629-wwpnrajs:32:6073)
    at eval (eval at <anonymous> (/tmp/execjs20161208-101629-wwpnrajs:173:8), <anonymous>:10:23)
    at eval (eval at <anonymous> (/tmp/execjs20161208-101629-wwpnrajs:173:8), <anonymous>:17:3)
    at /tmp/execjs20161208-101629-wwpnrajs:173:8

Q: The engine light is on and the code is P0420 - Catalyst System Efficiency Below Threshold Bank . What part do I need to fix it?

asked by on

The engine light is on and we just want to know what the part needed to fix this issue. the code is P0420 - Catalyst System Efficiency Below Threshold Bank . However I dont know if its downstream or upstream.

My car has 130267 miles.
My car has an automatic transmission.

A: While a number of things like a faulty oxyg...

While a number of things like a faulty oxygen sensor or exhaust leak can cause fault code P0420 to be set, the most common fault is the catalytic converter itself. However, as a replacement can be very expensive, your best be is to have a certified technician properly diagnose why code P0420 was set in the system.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Check Engine Light comes on after starting pickup

Hello there, thank you for asking about your 1992 Isuzu Pickup. A professional will have the correct equipment to read OBD1 codes. Retrieving the diagnostic trouble code(s) is the first place to start when diagnosing your vehicle. Increasing RPMs changes...

Q: Steering column button an program quit working

Hello there. This is not an uncommon fault on the 2011 BMW 535i. There are quite a few possible faults for this type of issue. The most common would be a wiring harness fault, a shorted wire, a failed position...

Q: Car cut off and ran out of gas - I put gas in it but the car still won't turn over

Running out of gas can damage the fuel pump. Gasoline acts to lubricate and cool the fuel pump as it runs. Running it dry can overheat and damage the pump. Have a certified technician check and/or replace the fuel pump...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...