I have just replaced an oxigen sensor in my 1996 explorer ( 4wd) . sudenly the fuel consumption is much higher. my mechanic said it has nothing to do with it ( obvievsly) . can it be that when the sensor was broke ( it didnt work) the fuel consumption was better? how much an explorer in a good shape with 62140 milage should cunsumpt ?
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Re: hi. fuel consumption and sensor
THE FUEL MILAGE ON THAT PARTICULAR VEHICLE SHOULD BE SOMEWHERE AROUND 17MPG IF IT IS EQUIPED WITH THE 4.0L V6. ONE THING YOU MIGHT WANT TO TRY IS TO RESET THE K.A.M. ON THE VEHICLE. THIS WILL RESET ALL OF THE FUEL CURVES AND OXYGEN SENSOR PARAMETERS AND ALLOW THE SYSTEM TO RE-LEARN HOW MUCH FUEL IS NEEDED TO RUN PROPERLY. TO DO THIS YOU CAN SIMPLY DISCONNECT THE NEGITIVE AND POSITIVE BATTERY CABLES AND LET THE VEHICLE SET FOR ABOUT 10-15 MIN. AFTER THAT TIME TOUCH THE TWO CABLES TOGETHER FOR ABOUT 15 SEC. AND THEN REINSTALL BATTERY CABLES ON BATTERY. THIS MAY HELP IN YOUR CASE BACAUSE WITH A NEW OXGEN SENSOR, THE COMPUTER IS NOT USED TO SEEING THE CORRECT READING SO WHEN IT DOES GET THE READING THAT IT NEEDS, IT DOES NOT KNOW WHAT TO DO WITH THEM.
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Hi.. On your question the definition of the codes are:
P0171, System to lean ( Fuel trim)
P1130, Air / Fuel sensor circuit range ? performance malfuntion This code is exclusive california Emissions). Oxigen sensor Performance malfuntion.
The first step you need to do is Check the Oxigen ( O2 sensor)
Connections The front and the rear one.
Check the condition of the Air filter Replace if need.
Check Spark plug Replace if need.
Check Fuel condition, Replace fuel filter if need.
And Clear the Codes if averything is good.
If the code P1130 return Replace the Air fuel ratio sensor..
Ok.. I hope this help on your question. If need more info letme know.
try changing the oxygen sensors this will make the biggest difference in fuel consumption. also depends on weather conditions and fuel quality in your area i know where i am at winter fuel runs alot worse then summer fuel because of the emission control additives they put in it.
not sure what you are concerned about here, probably fuel economy i'm guessing? you might consider purchasing a "scangauge II" which will give you a digital readout of about every sensor on your truck, including fuel consumption, ignition timing, knock ******, MAP, intatke temp, trans temp, etc.
it also reads/resets codes, i have found it to be a great diagnosis gauge/tool
IF THE RESET HAS BEEN DONE THEN IT WOULD BE THE SAME. BUT IF THE MECHANIC ONLY CLEARED THE CODES AKA. THE CHECK ENGINE LIGHT.... THEN NO IT IS NOT THE SAME. RESETING THE KAM IS A VERY DIFFERENT THING. TO DO THIS WITH A SCAN TOOL YOU MUST HAVE THE FACTORY(FORD) SCAN TOOL AND NOT JUST A GENERIC SCANNER. AND THE 17 MPG SHOULD BE FOR THE CITY AND ABOUT 19-20 ON THE HWY.
Hi, your car may need a tune up, tire air presure, tire size,cloged injectors,dirty air filter, fuel filter,bad oxigen sensor, all those can affect your gas consumtion. (start by checking the easyst ones first) good luck......
The Oxigen sensor are in diferent kind.
1 -- With a single wire. " is only oxigen sensor"
2 -- With 2 wires " is only oxigen sensor"
3 -- With 3 wires " Is oxigen and heater sensor"
4 -- With 4 wires " is oxigen sensor and heater sensor.
5 -- with 6 wires " is oxigen, heater A/F sensor" normally Nissan)
Depend of the year of your car.
But all the car they are Bank 1 or single bank. Engine in line
4 cyl . or 6 cyl. And are identified sensor 1 bank 1 and sensor 2 bank 1. S11 or S21.
But all the Engines in V are bank 1 and bank 2.
Sensor 1 bank 1, sensor 2 bank 1, S11 or S21.
Sensor 1 bank 2, sensor 2 bank 2, S12 or S22.
Sensor one is alway before catalystic.
Sensor two is alway after catalystic.
If you have problen with the oxigen sensor you need to put a scanner to see the number of code, The number of code will give the especific sensor that you need to replace.
The code can be heater or oxigen. and can be refer to a the same sensor.
I hope this information work for youu.
Thank you for use fixya.