M.r.davies

Hi All

I got a EJ20 Engine 2.0T
I think its same as WRX 98-00
A subaru forester year 2000, S Turbo (TD04L turbo)


Its using crazy amounts of fuel
Have managed to get it up to 300KM per tank, but it should be seeing 400-500

I've replaced
Plugs
O2 Sensor
Maf
Coolant Sensor
Cleaned the IACV

It was on 230km per tank, but now more like 300km
Its still way too low
Any ideas what else to try?
I guess the CAT is one thing... but i live in country that doesn't require them, so could remove it i guess

ditchmyster

iTrader: (7)

So a bit less than 200 miles per tank, is it an auto by any chance? and what sort of driving are we talking about, town or highway, lots of short trips, some spirited driving or miss daisy style.

Many things can effect fuel consumption, but driving style is the key to reasonable mpg.

If it's an auto around town it will suck especially if there's lots of traffic and short trips. Sounds like you got something right if it's improved by 80km per tank.

P.S Subarus aren't renowned for good fuel consumption.

JDM_Stig

iTrader: (3)

also what kind on ambient temp are we talking, turbo cars have to work hard in hot temps so use more fuel then in a cooler period.

jaygsi

iTrader: (46)

My old wrx drank fuel insanely, but it was bout 280bhp, my current turbo is only 240bhp and does alot better mpg, but thats soon to change

M.r.davies

It averages 20 degrees C here most of the year, and we are at 6000 feet

I've been told by other owners if I rag it then I should be getting down to 350km a tank

It's an auto, and I live in the country, so not quite as bad as around town, but not highway

My driving depends on how late I am
... I'm mostly late!

Last time I tested it, I was careful and just managed 300km

ditchmyster

iTrader: (7)

There's your problems.

jaygsi

iTrader: (46)

Try driving it under 3000 RPM, when the boost starts kicking in thats when your fuel will disappear, if stay off the boost more, better mpg. Have you thought bout LPG?

M.r.davies

Thanks Guys
Will try a tank under 3000 rpm and see what I get
What should I expect to be seeing? (apart from lots of people over taking me)

LPG.....Ha, I live in Kenya, getting normal fuel is often an issue!
Good suggestion though!

M.r.davies

I presume I need an OBD cable, laptop and software?
I have the laptop....nothing else though

Injectors are a good suggestion, I'll try some cleaner in there to see if that help (not as good as cleaning properly, but a start)

jaygsi

iTrader: (46)

Really oh well, best sticking to good old petrol, LPG is half the price of petrol here

I normally get 28MPG, if you drove long distance under 3000 RPM you should get abit more, but then whats the point, other option is to get it remapped, so you run 2 maps, one for mpg other for speed, thats what a guy i know does

ClassicEddie

did you fit a genuine subaru MAF and o2 sensors?

Milneragain

"I live in Kenya".

Try putting a tiger in your tank, that should do the job :-))