imported_Torrey

My friend has a 00 civic SIR, and has been getting 200km's a tank for awhile now.

What could be causing this... fuel filter is changed, and he has a vafc that has all the default settings.

Thanks,
Torrey

Crash_Rx7

well i dont know if it would help that much since its a new car
but a Motovac flush would be good, flushes out your engine basically of any build up

red90dx

faulty sensor, just went through this on my car...

check out coolant temp sensor - tells the ecu to lean out mixture when temp rises,
air intake temperature.
checkout the voltage of the TPS sensor...

also checkout timing, make sure plugs,cap,rotor,and wires are in good condition

blk93si

bad o2 sensor, check timing , stop hitting vtec all the time

mattharper

tune up

bbarbulo

iTrader: (2)

I blame the VAFC with the default settings. That's retarded why buy a performance part when you don't even know how to use it?

imported_Cablerat

200KM to the tank.. man that's just god awful..

imported_Torrey

Yea it is bad.

I know personally, I hit vtec all the time, and I always get 450km a tank, never less.

He has an aftermarket fuel pump, and no FPR, so Im starting to believe its shooting too much gas through the system. If he bought a Vafc,,, could that adjust fuel trims, and how can you adjust it?

(this goes out to those who have and know how to use a vafc, telling me to read XX somewhere else is not what I want as a response.)

bbarbulo

iTrader: (2)

haha... well, the VAFC is perfect for adjustment of fuel delivery, in fact that's what he NEEDS to be running, but problem is, if he's unwilling to read the literature that's available, there is little to no help for him. I mean, just ask 2 rice 4 u about it LOL

He needs to select the right displacement (if I remember correctly), choose his injector size 240cc is stock, and then choose Hi Lo values for his fueling in 500 rpm increments to adjust fuel trim. Even if he just disconnected the VAFC, he'd get way better mileage.

imported_Torrey

Hey Bruno, wheres the literature online? Do you know of a site that has a PDF or some documentation available? yeah 2 rice is still getting sub 200km/tank each fillup. If I could get some documentation on it, I don't see why I couldn't fix it,

Gallagher

i'm doing good, 7 tanks and i'm at 1400 km's :d

bbarbulo

iTrader: (2)

Ohhh... looky here

imported_EH_94_Civic

yeah that is quite strange. i get 530- 600 km per tank. depends on how i drive. i use to burn more gas. I did a tune up on my car and it fixed it. something has to be not working properly. Not to sure what though could be alot of things.

Bovolu

im gettin a bit over 400km per tank in a 2000 auto si
strictly city driving
pretty light driving too, like i tried not to hit vtec when i was recording the milage
any of u guys know if this is normal

bbarbulo

iTrader: (2)

bovolu, it's normal

Gallagher

is mine ?

7 tanks and I hit 1400 km's ?


i'm now on 8 and i'm half empty and at 1520 ?

imported_Torrey

steve
If your at home tomorrow, come by my place, I'll rip out that vafc and put it to some good use (My car).

In seriousness, disconnect it, and reset your ecu.

Then let a shop reconnect it and tune it at the same time.

NOOB

bbarbulo

iTrader: (2)

It's connected fine... with tuning HAPPY claims to have picked up 5 whp. So connection is not the problem. Go through the menu and familiarize yourself with it... then read the online pdf form form apexi... then go back and start playing with the settings... use Ultra 94 in there to start just to make sure you don't lean it out enough to detonate.

imported_Torrey

Not that its connected wrong, its not tuned, and I wouldn't want steve to **** up his car with changing more settings... so losing the 5whp that he doesnt have anymore by disconnecting it wont harm him.

**** he'll get more power, because runing rich hes losing a LOT of power.

bbarbulo

iTrader: (2)

Oh, I thought you meant rip it out and have it re-installed haha... my bad... you just meant disconnect it at the plug. Right... it's true!