4AGE fuel economy

[fuzzilogyc]

Hey,

Just wondering what kind of fuel economy other people get around town in their 4AGE's. Mines mostly unmodified, only air filter and extractors really.

I'm getting around 200km out of $40 gas = 23 litres. In my old 4AGE (and that was worked and had more power), I was getting at least 10km/litre.
I don't really thrash it that much - most of the time it sits below 4500rpm - not as much as my old motor.
My first guess is the O2 sensor. The motor seems to run pretty well. Welcome any suggestions.

[z0ton]

Hey,

Just wondering what kind of fuel economy other people get around town in their 4AGE's. Mines mostly unmodified, only air filter and extractors really.

I'm getting around 200km out of $40 gas = 23 litres. In my old 4AGE (and that was worked and had more power), I was getting at least 10km/litre.
I don't really thrash it that much - most of the time it sits below 4500rpm - not as much as my old motor.
My first guess is the O2 sensor. The motor seems to run pretty well. Welcome any suggestions.

I've got a bigport ae82 fxgt and I get around 250-300 off $40 of 95 or 98. And its driven pretty hard a lot of the time...

All ive changed on it is the intake and advanced the timing a bit...

[fuzzilogyc]

yeah, i thought my economy was quite poor... what you're getting sounds a lot more like it should be...

[solitaire]

i get about 440k's out of 40 litres.

Thats driving from silverdale into town 5 days a week... probably about 100minutes of heavy traffic. Ive got a exhaust back from the factory headers, k&n panel filter and a unichip piggy back thing. Oh and a big heavy sub box in the boot - im sure that messes with my economy... i used to get 500k's on a sensible week

[fuzzilogyc]

>_< now tell me whats messing with my fuel economy....

[Ae92typeX]

temp gauge warm up in the normal length of time? (e.g. is thermostat working), run error codes just to see if any issues?

my old 4age got betwen 10-14kml from memory depending how/where I drove.

[fuzzilogyc]

yeah, just changed the thermo less than 1000km ago. It warms up in a 'normal' amount of time now. But fuel economy still crap.
please elaborate on "run error codes". cheers

[Ae92typeX]

viewtopic.php?t=35814

what 4age you running as there are different methods to check depending

[fuzzilogyc]

smallport redtop.

that link tells me WHAT the codes mean, but not how to find them. i'm lost. haha

[Ae92typeX]

Im lazy tonight.

you will have a small diadnostic box somewhere near the battery, then:

...
check the codes... earth t and e1 count the flashes etc

...

Short the two pins out and turn the key to on.

Check the number of flashes and match up with the link I gave you.

They will read as follows:
13 will be *...***...*...*** etc where * is a flash

If there is more than one code it goes
13 & 17 will be *...***.......*...*******.........*...***.........*...*******...

[fuzzilogyc]

count the flashes? what's flashing? is there a light under that little box? the one that says "Diagnosis" right?

[Ae92typeX]

engine light on the dash flashes.

a careful specific search should tell you anything else you need to know.

This may/maynot help with the economy thing but its worth ruling out for sure.

[fuzzilogyc]

hey great, cheers for that. i'll go try now and report my findings...

[fuzzilogyc]

I shorted together Te1 and E, and it gave me error codes 21 and 24.

I know that my O2 sensor is most likely shod....

Which one is the air intake temp sensor? Does it have a blue plug, or a black plug? I think its the black one, but just making sure.

[strap-on]

You arn't running 91 octane or anything stupid like that are you?

[fuzzilogyc]

hahahahah na, 98 all the time

[gmacrae]

air intake sensor should be the one that plugs into the stock airbox, but in most cars with a pod its usually zip tied up to something - it doesnt really matter, but make sure its plugged in.

My ae92 bigport gets around 500kms highway driving on a tank, or about 400 town driving - doesnt seem to matter how hard/easy i drive it, still gets the same mileage

[fuzzilogyc]

yeah, im just wondering which one it is. cos there's 2 plugs that go into the stock airbox.

I used to get the same mileage on my old 4age.... didn't seem to matter how hard i drove...

[no_8wire]

I used to get about between 13-12km/L depending on how I drove it...

[neo]

I get better mileage when I take the Racecar to the track, around the track all day, then back than I do with my identical car around town.

Silvertop Race : 12km/L, Road: 8-9km/L

I think its a case of heavyfootedalwayslate'ism