Q: Was does system too lean bank 1 and bank 2 mean?

asked by on May 17, 2017

Check engine light on and might think that is the reading

My car has 135000 miles.
My car has an automatic transmission.

If you have codes stored in the engine computer for lean bank 1 and 2 is caused by the entire engine is running lean. This is caused by not enough fuel getting into the engine or too much unmetered air getting into the engine and the computer cannot compensate anymore to run it normal. Have the engine fuel pressure checked and also check the engine for any vacuum leaks. If further diagnosis is needed then contact a mechanic like one from YourMechanic to do more diagnostics if problem is not found.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

The yellow light for audi air suspension is flashing. What is the problem? On servis house said, possible that sensors freeze

If you have a warning light on your dash related to your air suspension system, this can be due to a few different things. Sometimes the air bags will develop leaks over time. When one of the air bags deveops...

I have a 2010 Nissan altima it's given me a p1717 code and does not move can anyone help

I have checked this code and there is not a listing that code P1717 applies to this vehicle. You will need to have the computer scanned again and verify the codes stored. Once you get the correct code then let...

My car started shaking and would not accelerate while I was driving. The check engine light turned on also. What cuase that?

This may be caused by a variety of reasons, but the slow acceleration suggests that you potentially have a clogged catalytic converter which could cause overheating. I would definitely not recommend driving it under this condition. I would recommend having...

Related articles

P0081 OBD-II Trouble Code: Intake Valve Control Solenoid Circuit (Bank 2)
P0081 P0081 trouble code definition P0081 indicates a generic issue with the intake valve control circuit bank 2. It may be seen with P0082. The vehicle may have a bank 1 and a bank 2 intake solenoid. What the P0081...
P0605 OBD-II Trouble Code: Internal Control Module ROM Error
P0605 P0605 code definition Internal Control Module ROM Error (Module Identification Defined by SAE J1979) What the P0605 code means The Engine Control Module (ECM) is responsible for many major vehicle functions such as ignition timing, anti lock-braking, fuel injection,...
P2445 OBD-II Trouble Code: Secondary Air Injection System Pump Stuck Off Bank 1
P2445 P2445 code definition Secondary Air Injection System Pump Stuck Off Bank 1 What the P2445 code means The secondary air injection system is designed to pump outside air into the exhaust in order to help reduce harmful emissions. This...