Question about 1995 Toyota Avalon

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My 95 avalon has check engine light on and shows code P0170.

Its marvin again on that 95 avalon The code also said P0170 fuel trim malfunction (Bank 1) whatever that means. I already sent an e- mail on this car a fee minutes ago so look at that also please.

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: CHECK ENGINE LIGHT CAME ON P0171 FUEL TRIM BANK1 SYSTEM TO LEAN.

Hi. You need to clean the Mass Air Flow Sensor.
This is an easy job.
Get a can of throttle body or brake cleaner spray at your local auto parts store.

Open the hood, and locate the air filter box. follow the tube from the filter box towards the engine. Look for a small black box with 2 screws holding it to the air tube, Remove the wire connector and observe inside the sensor with a flashlight. You will see 2 small wires, and they will appear fuzzy or dirty. Spray the interior with the cleaner until the wires are nice and clean. Do not use compressed air, you will damage the sensor. Put it all back together and drive it.
This will def fix your issue. This is a vey common problem. If you do it yourself, you will save 70 + bucks.

Thanks for choosing FixYa, and a FIxYa rating for my assistance would be greatly appreciated.

Posted on Jan 23, 2009

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Murphybanton
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SOURCE: vsc vsc off check engine

Disconnect your battery for 10 minutes after which you connect it back the lights should go off. Don't report to toyota. Nigerian style!

Rate this............

Posted on Mar 21, 2009

  • 1071 Answers

SOURCE: trouble code meanings for 2000 toyota avalon

bank one is the bank closest to the firewall in the manifold but if you replace this one you should do the other or you will get a code for it not long from now because the new sensor will operate much better and faster

Posted on Jul 29, 2009

  • 1 Answer

SOURCE: trouble code meanings for 2000 toyota avalon

bank one of a 2000 Avalon is on the rear NOT the front of the engine compartment!!

Posted on Jul 31, 2009

  • 4 Answers

SOURCE: 2000 corolla with trouble code po420

If the code has cleared on its own then you need to disconnect the battery and re-connect it. This will clear the codes out of the memory. If you don't want to do this you can go to an auto parts strore and have them hook the little computer up to your car and they can clear out the code as well.

Posted on Sep 02, 2009

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What is a fuel trim bank 1 on a 2006 xc90 volvo an whatvis a evap emission system switching valve mean


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    Code P0170 indicates a bank 1 fuel trim problem. Probable causes:
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    4. Fuel pressure problem. Check pump, regulator,filter, and lines

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    Dash symbol car with spanner through


    Your car only has one bank, so this code applies for the entire engine. I'll provide a link that gives a good breakdown of what P0170 means, possible causes, and possible corrections.
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    2006 kia spectra oem code p2626, p0171, p0170??


    P2626 O2 Sensor Pumping Current Trim Circuit/Open
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    Try changing the fuel filter first. Then you will have to clear the code with a jumper.

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    1998 bmw z3 roadster 2.8 engine light came DTC code p0170


    There is no one fix works on this O2 sensor code
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    Are you sure it is a trans code. Everything that I have found states that P0170 is a fuel trim problem?P0170 Fuel Trim Malfunction (Bank 1)

    The code P0170 means that the air-fuel mixture coming in to the engine is too lean, or too rich. Usually it's the lean condition that causes this code. The code P0173 means the same, only for the Bank 2. Some car manufacturers list the description for the code P0170 as self adaptation out of limits.
    The code P0170 could be caused by a number of reasons, such as vacuum leaks, bad PCV valve, or other parts of crankcase ventilation system, low fuel pressure, bad oxygen sensor, bad MAF sensor or even a bad EGR vlave.

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    CHECK ENGINE LIGHT ON CODE P0170


    DTC P0170 applies to fuel trim malfunction on all 2.4L vehicles, 3.0L Federal vehicles and right bank (bank 1) on 3.0L California vehicles. 
    DTC P0173 applies to fuel trim malfunction on left bank (bank 2) on 3.0L California vehicles.
    DTC Set Criteria (2.4L)

    Engine is in closed loop control. Intake air temperature is more than 14°F (-10°C). Barometric pressure is more than 11 psi (76 kPa). Volume Airflow (VAF) sensor output frequency is 88 Hz or more. Code will set if long-range fuel correction is less than -12.5 percent, or more than +12.5 percent, for 5 seconds and short-range fuel correction is less than -10 percent, or more than +10 percent, for 5 seconds. 

    Engine is in closed loop control. Intake air temperature is more than 14°F (-10°C). Barometric pressure is more than 11 psi (76 kPa). VAF sensor output frequency is less than 88 Hz. Code will set if long-range fuel correction is less than -12.5 percent, or more than +12.5 percent, for 5 seconds. On 2.4L code will also set if short-range fuel correction is less than -15 percent, or more than +15 percent, for 5 seconds. On 3.0L Federal code will also set if short-range fuel correction is less than -13.5 percent, or more than +13.5 percent, for 5 seconds. 

    Have the O2 Sensor changed on the Right Bank, ( passenger side of the Engine, or where the # 1 cylinder is.)
    Good luck and hope this helps

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