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| xr8185 |
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hey guys, my series 2 el xr8 has been quite the let down fuel wise. i am allways on this forum and i hear of xr8's doing 400-500km+ to a tank. its confusing cause mine is stock as a rock except in intake pipe from the front bumper to the air box but im only getting about 300km give or take 10km before the fuel light goes on. i do about half urban driving and half hyway driving. can anyone help me to get the economey better than 19L/100km.
thank you
_________________ 1997 EL XR8 |
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| xr8185 |
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ps. its always running on high octane 98, it that helps
_________________ 1997 EL XR8 |
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| the sam |
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Get a tune on it.
_________________ LOW, LOUD AND LUMPY |
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| xr8185 |
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{USERNAME} wrote: Get a tune on it. what kind of tune, im kind of a no0b in this? would you know what kind of results i could get from a good tune or can u recommend someone in sydney?
_________________ 1997 EL XR8 |
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| xafalcon |
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{USERNAME} wrote: ps. its always running on high octane 98, it that helps This actually hurts economy rather than helping. It's designed to run 91, that is what you should feed it. Higher octane fuel burns slower, so each litre of gas does less work as the piston travels further down the bore before peak cylinder pressure is reached. First do a fault code scan KOEO & KOER & cylinder balance and fix any faults Then cruising on a level road at 100kph in top gear your instantaneous fuel economy should be about 8-9 litres/100k's. If it's higher, replace the O2 sensors. If it's in the range it's either related to your right foot or most likely your MAF sensor.
_________________ XA Faimont 351C, AU2 XR8 Manual 5.0, DA LTD 5.0, Mk1 Capri 5.0, 1995 Mustang 5.0, EF2 XR8 Manual, EF2 Fairmont Ghia 5.0, AU3 XR8 Auto, AU2 XR8 Auto, AU2 XR8 Manual Ute, TE Cortina 5.0 Manual, DU LTD 5.0 soon to be manual |
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| AUXR8 2 |
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get it check out & go back to basics.!!! a ''dyno'' tune may end up masking the actual problem & cause more headaches... use a scan tool & do a KOEO the KOER see if there is any codes, check timing..etc. remember that the timing controls the injectors as well.!!!
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| xr8185 |
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{USERNAME} wrote: get it check out & go back to basics.!!! a ''dyno'' tune may end up masking the actual problem & cause more headaches... use a scan tool & do a KOEO the KOER see if there is any codes, check timing..etc. remember that the timing controls the injectors as well.!!! Thanks mate, I might try that first, would I be able to get the scan done at a ford dealership?
_________________ 1997 EL XR8 |
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| AUXR8 2 |
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lol lol..... most.... not all.... of the Ford Techs wouldn't have a clue, mate there called fitters.....I would say that there's more guys on this forum with more knowlege than a factory trained tech.
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| FordFairmont |
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Posts: 6113 Joined: 8th May 2007 |
take it to Joe !!!!
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| EF-MattyB |
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Change your oxy sensors on the exhaust the unplug the battery for half an hour (does and ECU reset).
This should help alot!!!
_________________ 99 AU Fairlane Ghia V8 Black Leather, 19" ANZ 5+5's with 245/35 rubber |
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| xr8185 |
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thanks guys, i spoke to Joe from crescent motorsports, he was great help, going to do some more tests before replacing things.
_________________ 1997 EL XR8 |
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| 67RCE |
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K's to a tank is so inaccurate. What sort of L/100k figure are you getting?
_________________ ILL60 - EF XR8, Sunroof, Ticky Kit, 19x8.5/19x11 TE37's, 347, AFr185's, TFS BoxRcustom converter, Hurst Quarterstick, huge billet cam. |
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| xr8185 |
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{USERNAME} wrote: K's to a tank is so inaccurate. What sort of L/100k figure are you getting? around 19 mate
_________________ 1997 EL XR8 |
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| Vic |
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Before you replace anything, check & clean your MAF.
_________________ 5.6L of carbon footprint. |
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| 67RCE |
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{USERNAME} wrote: Before you replace anything, check & clean your MAF. +1. After this, Oxy sensors. {USERNAME} wrote: {USERNAME} wrote: K's to a tank is so inaccurate. What sort of L/100k figure are you getting? around 19 mate I pulled 21L/100 around town in my old AU XR8. shift before 2000rpm and that dropped to 15L/100
_________________ ILL60 - EF XR8, Sunroof, Ticky Kit, 19x8.5/19x11 TE37's, 347, AFr185's, TFS BoxRcustom converter, Hurst Quarterstick, huge billet cam. |
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