GMKILA

hey guys i hace an eb 5.0 has done 170,000 k's engine is stock besides air filter and exhaust but i only get 300-350k's to a tank if i'm lucky i only put bp ultimate in it does anyone have any idea's how to fix it? i have changed all sensors already.

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soon my car will live up to its number plates

RAVEN

its a v8.us i6 ownus only get 4 - 450k's

GMKILA

my mate has one and he gets 450-500

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soon my car will live up to its number plates

xr8 5.0

is that around town or highway milage, i get 330-350 around town and 550-570klm on the highway, thats with 4.11 diff gears and 3200rpm non lock up convertor. have some one check the condition of your oxygen sensors and all earth points , battery , block etc make sure you check the earth wire on the last intake manifold bolt near the fire wall on the passenger side this is the oxygen sensor earth. a bad earth will make the computer think the engine is lean so it will try to compensate.

LTDHO

If it's as stoke as you say, then that's bad.

Put the car on the rollers and have the gasses checked.
How do the plug's look?

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GMKILA

thanks guys the oxy sensors are new plugs are new iridium type i'll check that earth and the car don't change much if it is freeway or cruisin arund

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soon my car will live up to its number plates

GMKILA

checked all earths still drinkin the juice like crazy

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soon my car will live up to its number plates

xr8 5.0

have you checked fuel pressure, reg may be faulty and pressure to high, faulty air flow meter or thermostate stuck open not letting engine warm up to temp required for closed lop control

GMKILA

doin it today thanks mate!

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soon my car will live up to its number plates