izaac23:
I am driving a Corolla 2003, recently, I discovered that the money I use every week to fill my tank has increased tremendously for the past few weeks, I changed plugs, clean the air filter, but it still consumes 19miles per gallon, wat else can I do or check to start working like a Corolla which is known for fuel economy pls.

My pple pls help me.

muyoge:



Have you checked the air- flow meter?
Ask if Corolla uses that, that might be the culprit.

And besides, which engine oil do you use?

coolcharm:
Plugs

Catalytic converter

Airflow meter

Engine

izaac23:


When I scan my check engine light which always comes up in a matter of days after clearing the previous, I am always told that it is a clucked catalystic converter.
Pls if this is the culprit, how can I deal with this and what is the cost of fixing this cuz I was told by my electrician that is very expensive to fix

izaac23:


When I scan my check engine light which always comes up in a matter of days after clearing the previous, I am always told that it is a clucked catalystic converter.
Pls if this is the culprit, how can I deal with this and what is the cost of fixing this cuz I was told by my electrician that is very expensive to fix

izaac23:
I am driving a Corolla 2003, recently, I discovered that the money I use every week to fill my tank has increased tremendously for the past few weeks, I changed plugs, clean the air filter, but it still consumes 19miles per gallon, wat else can I do or check to start working like a Corolla which is known for fuel economy pls.

My pple pls help me.

izaac23:


If I understand you well, air-flow meter is the air filter on the right black box in the engine bay. If that is it, I have inspected that and blow the filter at a vulcaniser machine. It's still clean and in good condition

And I use mobile 1 5w30 synthetic oil.

izaac23:


When I scan my check engine light which always comes up in a matter of days after clearing the previous, I am always told that it is a clucked catalystic converter.
Pls if this is the culprit, how can I deal with this and what is the cost of fixing this cuz I was told by my electrician that is very expensive to fix

izaac23:


When I scan my check engine light which always comes up in a matter of days after clearing the previous, I am always told that it is a clucked catalystic converter.
Pls if this is the culprit, how can I deal with this and what is the cost of fixing this cuz I was told by my electrician that is very expensive to fix

muyoge:


You can't blow it. It is the device that determines the amount of fuel that gets mixed with air and it's an electrical device.

You cleaned the air filter not the airflow meter.

Structuralman:


Check your fuel status with your scanner. Check whether the car is running in closed loop or open loop. Scan it after driving for a while.

izaac23:


I don't seems to grab anything from close loop to open loop u are talking about. Do I have a scanner

Pls explain with english

Structuralman:


Whenever you start your car, it will be in open loop for some minutes until the O2 sensors kicks in. Open loop means the car is not following any instructions regarding fuel use. More fuel will therefore be consumed. Once the O2 sensors begin to work the car ECU will control the amount of fuel being used by the car using the sensors. This is closed loop and less fuel will be consumed by the car.
But please start by buying an OBD 2 Bluetooth scanner from Jumia. It's very cheap and can detect basic car faults. Simply install torque app on your Android and use the scanner to scan the car. The error codes that will be shown will give you the exact root case of your car consuming too much fuel.

izaac23:
Just to be sure that my calculation of 19mpg is correct,
I used 29.2 litres of fuel at a distance of 153miles
Someone can help me calculate just to be sure pls

izaac23:
Just to be sure that my calculation of 19mpg is correct,
I used 29.2 litres of fuel at a distance of 153miles
Someone can help me calculate just to be sure pls

izaac23:


Pls tell me what an airflow meter is because I used to think air filter is another name for it. Pls explain.

Peppermintflav:

.

izaac23:


How do u do this calculation because my own calculation gives me 19.8 miles per gallon ??

izaac23:


How do u do this calculation because my own calculation gives me 19.8 miles per gallon ??

aieromon:


What is the error code? 19MPG is poor, very poor.

izaac23:
I got the OBD 2 device, this is my scan result

Pls gurus, interprete for me what I need to tell my local electrician to fix for me cuz he does not understand this code issues.

izaac23:

Structuralman:


This is a very good start. Nice one.
Post same in the link below. The gurus will help you out.

https://www.nairaland.com/1788778/maintenance-tips-cars/368

Dozieson:


https://www.google.com/search?q=p0440+and+p0441&sxsrf=AOaemvK2eRT22t-Dq_Hbr35N3XUcjyXCfA%3A1641477213571&source=hp&ei=XfTWYfjCII2SlwTZxq64BA&oq=&gs_lcp=ChFtb2JpbGUtZ3dzLXdpei1ocBABGAAyBwgjEOoCECcyBwgjEOoCECcyBwgjEOoCECcyBwgjEOoCECcyBwgjEOoCECcyBwgjEOoCECcyBwgjEOoCECcyBwgjEOoCECcyBwgjEOoCECcyBwgjEOoCECcyBwgjEOoCECcyBwgjEOoCECcyBwgjEOoCECcyBwgjEOoCECcyBwgjEOoCECdQAFgAYI4PaABwAHgAgAH_AogB_wKSAQMzLTGYAQCwAQ8&sclient=mobile-gws-wiz-hp#

izaac23:
I got the OBD 2 device, this is my scan result

Pls gurus, interprete for me what I need to tell my local electrician to fix for me cuz he does not understand this code issues.