Skip the auto shop - Our mechanics make house calls

Q: Fuel trim bank 1

asked by on

I have a mitsubishi Pajero io but I have a problem where it shows that there is some form of fuel trim bank 1 showing up now I don't kno wat to do r how to get the problem solved

If your vehicle is having issues with the fuel trims, this is usually an issue with the powertrain control module or engine computer. The powertrain control module is responsible for setting and adjusting the fuel trims as the vehicle is driven. The fuel trims are always based on the conditions that the vehicle is being driven in.

I would recommend having your vehicle’s PCM tested with a high tech scan tool by a qualified professional, like one from YourMechanic. They can come to your home or office to service your vehicle and determine what types of readings the PCM is giving off.

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

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

Q: PCM

I would question why the computer needs to be replaced. If the computer is causing a problem like the vehicle will not start or some other issue, then I would recommend the dealer to diagnose it since it will need...

Q: Can't find the fuel leak detection pump

Hi there. The fuel leak detection pump is located next to the fuel tank and the frame under the vehicle. It is a small plastic item with 2 hoses attached to it. It will also have a wire harness connected...

Q: Engine control modules replaced on a newer car

Hi there. These modules are common failures on the Jaguar XF. I am sure that this does not make you feel any better about it, but from my experience, once the modules are replaced you usually do not have any...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...