Taylor Posted February 11, 2006 Share Posted February 11, 2006 I have an n/a and i am using 97ron fuel however i am only getting bout 140 miles to £40. Does this seem right? most of my trips are less then 10 miles with the odd longer trip thrown in, i have 1 cat removed and also a hks induction kit. p.s dont all jump on me about you dont buy a car like this if you are bothered about fuel!! its not an issue because i can afford it plus i only do bout 8k a year, but some peaple seem to be getting almost twice this or is this my imagination!!! just dont want to find out i have a problem a few months down the line! it idles when warmed up at bout 800revs and about 1200 when started. it seems to tick over fine and purss like...well a supra! also i aint got a lead foot well not 90% of the time!!! Link to comment Share on other sites More sharing options...
black cat Posted February 11, 2006 Share Posted February 11, 2006 i get abot 250 to 300 miles out of a full tank, which is about 55 > 60 quid. dont actually no for sure long since ive filled it right up. this is on motorways at around 70 mph 140 for 40 quid is bad. but if you drive it hard you can expect way less than that matey. its what comes with having a 3 litre straight 6 24v Link to comment Share on other sites More sharing options...
Whitesupraboy2 Posted February 11, 2006 Share Posted February 11, 2006 110 - 120 miles for £20 here and im an NA Link to comment Share on other sites More sharing options...
Taylor Posted February 11, 2006 Author Share Posted February 11, 2006 hmmm this dont look good then? ant ideas then cos its drives and sounds bang on! Link to comment Share on other sites More sharing options...
Need4Speed Posted February 11, 2006 Share Posted February 11, 2006 I would have thought 25mpg was possible with a n/a, but I wouldn't be surprised if it normally did 18-20mpg. Link to comment Share on other sites More sharing options...
lockys96 Posted February 11, 2006 Share Posted February 11, 2006 that is very bad, i get 165miles on £30 on my twinturbo Link to comment Share on other sites More sharing options...
Taylor Posted February 11, 2006 Author Share Posted February 11, 2006 well from my calculations it about 14mpg. this cant be right surely! Link to comment Share on other sites More sharing options...
black cat Posted February 11, 2006 Share Posted February 11, 2006 well from my calculations it about 14mpg. this cant be right surely! how do you drive???? like a nutter or granny like.?? Link to comment Share on other sites More sharing options...
Taylor Posted February 11, 2006 Author Share Posted February 11, 2006 i drive normally 90% of the time and then have the odd short belt around , but i would say if def dont cain it, below 4k revs most of the time Link to comment Share on other sites More sharing options...
black cat Posted February 11, 2006 Share Posted February 11, 2006 i drive normally 90% of the time and then have the odd short belt around , but i would say if def dont cain it, below 4k revs most of the time below 4K ....................errrrrrrr you have probs. just had mine at 6:D Link to comment Share on other sites More sharing options...
Taylor Posted February 11, 2006 Author Share Posted February 11, 2006 is there any sort of thing you can do to see if its overfeuling and if so can you turn it down! Link to comment Share on other sites More sharing options...
Whitesupraboy2 Posted February 11, 2006 Share Posted February 11, 2006 does the exhaust smell like petrol? reset the ECU, Put stock box back on to see if MPG goes back up. You are decatted and im not mind you, but still 14mpg is low. Maybe lamba sensor is on its way out Link to comment Share on other sites More sharing options...
Taylor Posted February 11, 2006 Author Share Posted February 11, 2006 im a proper noob so bear with me, how do i reset ecu? the exhaust does not smell of pterol to me anyway if its the sensor how much am i looking at? Link to comment Share on other sites More sharing options...
imi Posted February 11, 2006 Share Posted February 11, 2006 Can we all talk MPG here...rather than how much the fuel costs cause the price varies so the figure is meaningless. My TT has just given me 21mpg.... Link to comment Share on other sites More sharing options...
Taylor Posted February 11, 2006 Author Share Posted February 11, 2006 as i said above about 14 mpg driving steady Link to comment Share on other sites More sharing options...
Guest jt2000 Posted February 11, 2006 Share Posted February 11, 2006 I would have thought the short journeys would kill the mpg. I have a 307 hdi which averages 48mpg but the first part of journeys the computer shows about 25mpg. Its only when the car is up to temperature does it run more economically. Link to comment Share on other sites More sharing options...
Whitesupraboy2 Posted February 11, 2006 Share Posted February 11, 2006 mine is well above 14mpg and more around 22 - 24 mpg average driving with stints. Motorway im up to about 27-28mpg. Most had from a tank is 380. I only fill up £20 stints as i dont see point in carrying all that extra weight around! Well i can tell you the sensors are £107 from toyota and there 2 of them as i think mine have gone. waiting for mkivstore on here to open to see how much they can do them for. If your exhaust doesnt smell of petrol may not be them. You can clean the sensors first though that may help, very easy to do Link to comment Share on other sites More sharing options...
Taylor Posted February 11, 2006 Author Share Posted February 11, 2006 cheers for that. like i say its only costing me 25-30 a week cos i do low milage but even so if its using more than it should it could cause probs in the long run, is there anywhere that could change the fueling if it is out or is that a silly thing to say!!! Link to comment Share on other sites More sharing options...
Whitesupraboy2 Posted February 11, 2006 Share Posted February 11, 2006 what id do if it was me; Remove lamba sensors (12 mill spanner or socket set be easier!) 2 bolts on each just below heat shield you cant miss the the 2 sensors. When they come out they will be covered i ncarbon most likely wipe off what you can then put them in lemon juice for a few hours to remove any build up. After dry them out and replace, then pull the EFI fuse to reset the ECU, let it idle and see how the mpg is then. If you do a search on 'ecu reset' youll find out how to do it Link to comment Share on other sites More sharing options...
Taylor Posted February 11, 2006 Author Share Posted February 11, 2006 will try this, will these 2 things cause any problems tho? Link to comment Share on other sites More sharing options...
Whitesupraboy2 Posted February 11, 2006 Share Posted February 11, 2006 not sure what u mean these 2 things? if you mean a ECU reset? no If you mean the sensors, could be, they tell the ECU how much oxygen is going dow nthe exhaust and how to compensate, if sensor is bust you could be running rich hence lower mpg Link to comment Share on other sites More sharing options...
Supra-Dupra Posted February 11, 2006 Share Posted February 11, 2006 190 miles to 70 euro (£47) last week (Auto) Link to comment Share on other sites More sharing options...
Need4Speed Posted February 11, 2006 Share Posted February 11, 2006 Before you spend loads of time and money checking the ECU etc. check your ODO is reading correctly. My TT did 14mpg until I discovered a double conversion of kilometres to miles. 14mpg x 8/5 = 22.5; not so bad. It's worth a look. If you're only getting 14mpg, you've got a leak or you live on a race track. Link to comment Share on other sites More sharing options...
Taylor Posted February 13, 2006 Author Share Posted February 13, 2006 whats the best way to check this, other then follwing another car and comparing? Link to comment Share on other sites More sharing options...
Need4Speed Posted February 13, 2006 Share Posted February 13, 2006 Variations on this are driving between two places that you know the real distance between... Motorways have markers on them you can use. You're looking for a huge error here, not just 5% or something. Alternatively, dismantle the dashboard and look at all the junped wires and see what's wired to what and how many little black boxes you can find. Link to comment Share on other sites More sharing options...
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