What to check to reduce MPG?

Post by **Ammo** » Wed Apr 11, 2012 10:59 am

Currently my car is eating fuel to the tune of about 16mpg in mixed driving that was with 2 or 3 vtec blasts

So far i have changed:

Fuel Filter
Manifold
O2 sensor
added the cat back in
different exhaust

But it's made no difference

Once I have my valve tool back I'll redo the valve clearances, also need to do an oil change

What other things can I look at?

mart609 · Post by **mart609** » Wed Apr 11, 2012 11:01 am

Post by **Gayno** » Wed Apr 11, 2012 11:03 am

Check timing?

Post by **Ammo** » Wed Apr 11, 2012 11:06 am

mart609 wrote:EGR?

Forgot to say I decoked that

Gayno wrote:Check timing?

I'll run the gun over it again, must at admit not checked it since doing the cambelt (Timed it then)

Post by **Gayno** » Wed Apr 11, 2012 11:06 am

Ammo wrote:I'll run the gun over it again

If it's already full of bullet holes, there's your problem!

Post by **4thgenphil** » Wed Apr 11, 2012 11:09 am

hole in your fuel tank?

seriously though have you got a fuel leak anwhere?

Post by **Ammo** » Wed Apr 11, 2012 11:14 am

I did wonder but I can't see or smell any leaks

littlefeller · Post by **littlefeller** » Wed Apr 11, 2012 11:27 am

has this got worse or has it always been like this

Post by **Ammo** » Wed Apr 11, 2012 11:28 am

Getting worse, but it's never been excellent on fuel, always thought it was my right foot

littlefeller · Post by **littlefeller** » Wed Apr 11, 2012 11:30 am

do you use a piggy back ecu tuner?