Checking somethings looking at better fuel economy

[mag]

You have no doubt seen my posts of things i'm checking in search of more miles per gallon or is it less dollars out of my wallet when I go to fill up. lol

1st is b4 (look at the crud in there)
2nd is after (much better) also cleaned with throttle open full..
3rd a bit blurry but you can see where 3 leads are arcing.
4th fuel filter
5th temp sender 4 ECU
6th AAC valve 4 components the spring is missing..
7th A mod I use to do on 4 bbl Holleys is to take out the idle stop on the secondaries and put it in up side down, much easier to adjust if you NEED too!
8th Airflow meter checked
9th Ecu checked and fuel mixture OK

[maryjane]

you got me confused too

[harry3]

the engine temp unit and its electrical connection is very important as if not OK can make the ECU think the engine is cold all the time

Is it OK to remove the air intake hose at the engine and spray some carby cleaner around in there?

[mag]

the engine temp unit and its electrical connection is very important as if not OK can make the ECU think the engine is cold all the time

Is it OK to remove the air intake hose at the engine and spray some carby cleaner around in there?

That's why I showed it in the pic as to check it - mines good.

And carby/throttle body cleaner is made 4 cleaning that crap,spray some in let it soak for a few mins and spray again.
For stubborn bits use a small brush and spray again..

[VL Berlina 5speed]

unscrew your O2 sensor tommorow Mark and have a look at it,
if you can replace it or at least get a wire brush and give it a clean,

this will help with your fuel hunt as the computer use the exhaust gas to calculate its performance and adjust acordenly

then just your typical checks, fuel spark and air.
filters and injectors are clean and at optimum, no leaks anywhere
right gap on spark plugs and condition of leads (as you have) condition of dissy cap points (clean and well sealed) and good working order of the CAS and cables.
right tuning of AFM.
but you should know that already

[mag]

unscrew your O2 sensor tommorow Mark and have a look at it,
if you can replace it or at least get a wire brush and give it a clean,

this will help with your fuel hunt as the computer use the exhaust gas to calculate its performance and adjust acordenly

then just your typical checks, fuel spark and air.
filters and injectors are clean and at optimum, no leaks anywhere
right gap on spark plugs and condition of leads (as you have) condition of dissy cap points (clean and well sealed) and good working order of the CAS and cables.
right tuning of AFM.
but you should know that already

Hey Sean thanks..
The o2 sensor was the 1st thing I did(forgot to add it) and air filter was the other

Also looking at the TPS 2moro, gave it a quick check today and didn't test good..

[rb26dett]

Glad I dont have an O2 sensor on my VL.

[Not_An_Abba_Fan]

The condition of the outside of the O2 sensor makes absolutely no difference to its sensing capabilities unless the vents are blocked. In which case it will be stuffed as whatever blocked it will have contaminated the sensor so it will require replacing. The sensor is actually inside the casing and is about the size of an erasor you find on the top of a pencil.
Check the cat also, the best way is to take the car to an exhaust shop to do a temperature test on it, easier than taking it off and looking inside and risk snapping the bolts.

[mag]

The condition of the outside of the O2 sensor makes absolutely no difference to its sensing capabilities unless the vents are blocked. In which case it will be stuffed as whatever blocked it will have contaminated the sensor so it will require replacing. The sensor is actually inside the casing and is about the size of an erasor you find on the top of a pencil.
Check the cat also, the best way is to take the car to an exhaust shop to do a temperature test on it, easier than taking it off and looking inside and risk snapping the bolts.

The sensor I know about but the TEMP test on the cat that's news!!
Thanks N.A.A.F

[mag]

You have no doubt seen my posts of things i'm checking in search of more miles per gallon or is it less dollars out of my wallet when I go to fill up. lol

1st is b4 (look at the crud in there)
2nd is after (much better) also cleaned with throttle open full..
3rd a bit blurry but you can see where 3 leads are arcing.
4th fuel filter
5th temp sender 4 ECU
6th AAC valve 4 components the spring is missing..
7th A mod I use to do on 4 bbl Holleys is to take out the idle stop on the secondaries and put it in up side down, much easier to adjust if you NEED too!

Added another pic..

[Not_An_Abba_Fan]

The sensor I know about but the TEMP test on the cat that's news!!
Thanks N.A.A.F

No problem. With the cat temp test, it has to be at least 10% hotter at the rear or its not working. Hotter at the front means a restriction, same temp front and back means not working, greater that 10% increase at the rear means it is fine. If it is found to be cactus then there is a problem somewhere that caused it and that needs to be fixed. Cats do wear out after about 80 000k's so bear that in mind when fault finding.

[mag]

No problem. With the cat temp test, it has to be at least 10% hotter at the rear or its not working. Hotter at the front means a restriction, same temp front and back means not working, greater that 10% increase at the rear means it is fine. If it is found to be cactus then there is a problem somewhere that caused it and that needs to be fixed. Cats do wear out after about 80 000k's so bear that in mind when fault finding.

IF it's the original cat then it died about 100,000kms ago

[mag]

Have filled up tank and will see what fuel usage is like now!!

[mag]

Have filled up tank and will see what fuel usage is like now!!

7.53kms per 1Lt of petrol OR

13.28 Lts per 100kms OR

21.27 Mpg


Use to use 16.74Lts per 100 kms/16.87Mpg