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NA XR6 03 Fuel Issue


Steezy

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  • New Member
  • Member For: 7y 1m 2d
  • Gender: Male
  • Location: Tasmania m8

Howdy

 

So I'm having a problem with my 03 NA XR6, I feel as if the car is running fairly rich and it has been having problems where the car will lose power on the highway or drop revs and feels sluggish to drive, I've replaced a lot of things including;

plugs - double platinum autolites

new fuel filter

new air filter

new oil filter

new o2 sensor

all new fluids and coolant

new oil full synthethic hpr 10w-50 penrite

2/5" m/s lukey exhaust

pacemaker extractors

mace cold air intake

new belts

 

I've driven the car hard and very soft for a full tank I'm still averaging 380-390kms to a 68 litre tank, is this average fuel econony? Can I be getting much more? Is there something I've missed? I'm cleaning out the TB today and coil packs are the next guess although my mechanic seemed to think my plugs and coils are fine..

 

Cheers.

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  • less WHY; more WOT
  • Site Developer
  • Member For: 15y 11m 18d
  • Gender: Male
  • Location: Melbourne

:Welcome2FordXR6t:

 

You should be able to get 600ish km on the highway out of a tank. 400-450km is reasonable out of a runabout car that only goes to the shops.

 

I would suggest to clean up the intake system including the TB. Could also be a vacuum leak - check for air escaping from the gap between the two halves of the intake manifold. Make sure the catalytic converter has not collapsed and the oxygen sensor is in reasonable condition, too.

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