19 replies to this topic

[kb24]

i was just wondering what you guys get roughly from a tank, mine is a gsr with evo 0 motor and im struggling im getting about 250k to a 50l tank and thats not floggin it either and 8psi, its not leaking ive already checked that and im using a meek gsr converted ecu to which he made it leaner on full throttle, i was thinking about 400k/50L was about right 350k driving hard

[Dean]

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[flashrx]

my vr4 gets about 350 or so to 45 odd ltrs on 11psi with the odd floggin.
not sure bout high boost yet, not sure if i wanna know.

[mattrat]

mine gets 350 on 18 psi,560's with a big garret and chip, mines a vr4 too

[Entaran]

search function...

Key points...

Your o2 sensor is fucked
Your injectors are blocked
Your fuel pump is probably on the fritz

Happy fixing.

[brettu26]

I get 450-500k's consistantly on mine, althoug relatively stock. filter, exhaust, 14psi, stock injectors etc

[iluszn]

I have a friends VR4 right now.. Big 16g, exhaust, filter, 15psi, bigger pump. right now, just under a 1/4 tank left, 390km. and that is heavy traffic driving with a good few squirts.

[nate108]

just got 450kms out of my vr4 but that included 200kms on the highway.

[AdamD]

search function...

Key points...

Your o2 sensor is fucked
Your injectors are blocked
Your fuel pump is probably on the fritz

Happy fixing.

I had the exact same problem, got 240-250km to a tank. Checked all of the above, nothing. Turned out to be the fuel pressure regulator.

[kb24]

i found that the coolant temp sensor was reading -159 degrees so i swapped the wires around on the plug and i got the correct reading but thats still not the problem:fuuuuu: probably half of it though i ended up getting 146k to one tank and its blowing black smoke on idle, im pretty confident it is the o2 sensor because it has been cut and resoldered and when disconnected it didnt make a difference so ill give one of them a try

[aussievr4]

Chuck a data logger on if you are able to...helped me diagnose my o2 sensor straight away.

[kb24]

Chuck a data logger on if you are able to...helped me diagnose my o2 sensor straight away.

did your register a check engine light because mine only did for the cool temp but now there is no codes

[aussievr4]

I had a check engine light which would appear every so often for a short ammount of time and then would disappear. Apparently it only shows under certain circumstances but theres an explanation for it on the www.vfaq.com faq section. My issue was a bit different though as my fuel economy was normal but the car kept hesitating.

I used TMO logger which has a fault tab from memory and it said that the 02 sensor was faulty.

[Jazz9]

Hello,

I have been slowly getting there with a vr4 on fuel economy.

When I brought it (all highway driving) I got ~200km per tank. This is what I found.

ECU had blown caps, fixed added ~100kms per tank

I then upgraded to a 055, 560cc, 20G and a meek chip. About ~50km per tank extra. I think the meek chip was the cause.

Swapped over O2 sensor, added about ~50km per tank

POD filter adapter / POD Swapped to a decent pod / adapter and gained ~50 km per tank The main reason about the pod filters is that the airflow has to be straight though to AFM. Mine was terrable.

Just put a new walbro and reg without much change.

So now I get around 450kms per 50-55ltr tank which is still really bad.

My lancer with a rebuilt 4g63t 20psi awd gets 450-500 on a 40Ltr tank! I have a plx 500 wideband / narrowband in it and I allways wonder if that is the cause of the added kms. Or the rebuild? The AFR's on cruise is 14.3-14.7 (a bit lean). under load 11.3-11.7.

Thanks,

Glen

[flashrx]

update
givin it a regular hiding got 300 to i think about 38ltrs.
evo 3 turbo, 650 injectors, walbro pump, hks cams, cyclone intake, 20psi, keydiver chip.
am happy with that as it is heavy car compared to a lancer or most other small 2lt cars.

[kb24]

well i found the problem and it was the chip in the ecu, chris from meek got the injector size mixed up but its all fixed now and he was extreamly sorry:thumbsup: he is a nice bloke im just happy its fixed and sorted its a totally different car now 3x the power and ive done about 100k,s to 1/4 tank so im happy with that

[JiMi]

i get around 600 k's open ropad driving

350-400 city with lots of short trips (lotsa cold/rich driving)

[Entaran]

I once drove from ballarat to adelaide in a basically stock jspec vr4 (11psi, no other mods) and hit the fuel light as I got to the lights at the bottom of the hills there.

That's 664km from my door... or like... 7.8L/100km.

It never happened again. On the way home I was doing like 200kmh...

[Kane_GSR]

well i found the problem and it was the chip in the ecu, chris from meek got the injector size mixed up but its all fixed now and he was extreamly sorry:thumbsup: he is a nice bloke im just happy its fixed and sorted its a totally different car now 3x the power and ive done about 100k,s to 1/4 tank so im happy with that

What ecu did u get chipped and what mods?

[kb24]

What ecu did u get chipped and what mods?

i got the gsr ecu done and its the evo 0 motor with walbro and pwr fmic 12 psi