0
What to check code PO420 says catalyst efficiency below threshold bank1?
Wiki User
∙ 11y ago
check for damaged parts loose connections oxygen sensors and catalyst convertor
If everything looks intact and that is your only code, you probably have a failing catalytic converter.
Wiki User
∙ 11y ago
Anonymous
What’s the problem
Add your answer:
Earn +20 pts
How do you fix code po420 for Chevy s10 blazer?
P0420 = Catalyst Efficiency Below Threshold (Bank1). Sounds like you probably need to replace the Bank 1 (drivers side) Catalytic converter.
What is Audi fault code 16806?
16803 - Main Catalyst, Bank1 Below Threshold 16803 - Main Catalyst, Bank1 Below Threshold
Where is P0420 on a 1998 Mercury Mystique LS?
Catalyst efficiency below threshold (bank1) You may have a tired catalytic converter on bank 1.
Where is the oxygen sensor bank1 sensor 2 on a Chrysler new yorker?
Passengers side, after the catalyst.
Where is the bank1 sensor2 oxygen sensor on the 2002 Mitsubishi Galant v6?
where is bank1 sensor2 on the 1999 Mitsubishi montery sport 3.5
Where is bank1 o2 sensor on g35?
passenger side
Where is oxygen sensor 2 for bank 1 for a 2000 Lincoln town car?
On a 2000 Lincoln Town Car : Bank1 is the passenger side of the engine Sensor 2 would be in the exhaust AFTER the exhaust has passed through the catalytic converter ( downstream sensor , also called a catalyst monitor )
Where is bank1 sensor3 on 2005 Ford Focus?
the one after the cat
What do a 2002 niissian maxiam bank 1 sensor look like?
It depends on which sensor, O2/camshaft,etc. The O2 sensor is a straight metal sensor that is screwed into the exhaust. There is an upstream/bank1-sensor1 or down stream/bank1-sensor2 after the catalytic converter. A camshaft sensor is an L shaped, usually black sensor that is installed into the head closest to the firewall(bank1).
What is is code p0136?
O2 sensor circuit malfunction (bank1 sensor 2)
How many knock sensors does a Lexus rx 300 have?
2, bank1 and bank2
Where is bank1 sensor2 located on a Toyota MR2?
that is the oxygen sensor on the exhause manifold.
