IS - 2nd Gen (2006-2013) Discussion about the 2006+ model IS models

Unbelievable Mileage

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Old 01-29-21, 07:30 AM
  #31  
MikeFig82
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Originally Posted by rubian2012
I don't rely on that display, I do the calculations based on how much gas I get at the pump and how many Kms I drive. FYI, those displays are so erroneous. Did you notice when you fill the tank and it displays "approx range" e.g. 300 miles, then you drive it for 2 miles and the display shows the "approx range" is 290 miles. Someone may say this is due to the movement, in oil &gas offshore industry, sloshing is very severe yet the errors are not that huge; Lexus instrument which is used in this car is a joke!
Have you tried looking at live data while driving? OBD live data scan tool, or Bluetooth adapter. With that gas mileage something has to be off.
Old 01-29-21, 07:43 AM
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Originally Posted by MikeFig82
Have you tried looking at live data while driving? OBD live data scan tool, or Bluetooth adapter. With that gas mileage something has to be off.
Thank you MikeFig82.
Not yet. I have the Mini VCI/Techstream. I need to learn how to use/do it; I searched on Youtube but did not find good vids., do you know any?. I really don't want to throw $800+ on new spark plugs while the car is only driven 75,600 km. I hate the Canadian Lexus dealerships.

Old 01-29-21, 08:08 AM
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Originally Posted by rubian2012
Thank you MikeFig82.
Not yet. I have the Mini VCI/Techstream. I need to learn how to use/do it; I searched on Youtube but did not find good vids., do you know any?. I really don't want to throw $800+ on new spark plugs while the car is only driven 75,600 km. I hate the Canadian Lexus dealerships.
Old 01-29-21, 09:42 AM
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Thank you again MikeFig82.
Old 01-31-21, 11:44 AM
  #35  
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OP. Mr Figs really gave you the best advice. The answer is there you just have to take the right steps to get to it. I have all the manuals for the IS250 and would be happy to share the repair information with you. You simply need to get the codes that tell you what the trouble is As for guessing what it could be that is all hit and miss. You are simply going to have to spend the money to diagnose the problem by paying someone to get the codes or take the time to do it yourself. It has to be done.


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Old 01-31-21, 05:09 PM
  #36  
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Originally Posted by winterturb
OP. Mr Figs really gave you the best advice. The answer is there you just have to take the right steps to get to it. I have all the manuals for the IS250 and would be happy to share the repair information with you. You simply need to get the codes that tell you what the trouble is As for guessing what it could be that is all hit and miss. You are simply going to have to spend the money to diagnose the problem by paying someone to get the codes or take the time to do it yourself. It has to be done.
Thanks winterturb, that's very kind of you. I am just trying one thing at a time. I think it'll boil down to vac. leaks. Do you have the electronic version of the repair information?
Old 02-01-21, 08:48 PM
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Originally Posted by rubian2012
Thanks winterturb, that's very kind of you. I am just trying one thing at a time. I think it'll boil down to vac. leaks. Do you have the electronic version of the repair information?
no. I have the paper books. 6 volumes and about 1000 or more pages each.
Old 02-02-21, 08:45 AM
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Originally Posted by winterturb
no. I have the paper books. 6 volumes and about 1000 or more pages each.
Can you PM if there is any procedure to calibrate the lower intake manifold? IS250

Thank you.

Last edited by MikeFig82; 02-02-21 at 09:04 AM.
Old 02-02-21, 02:51 PM
  #39  
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Originally Posted by winterturb
no. I have the paper books. 6 volumes and about 1000 or more pages each.
Thanks winterturb, please check your Inbox.
Old 02-04-21, 05:48 PM
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Your gas consumption is twice what it should be. I'll bet its not meeting emissions specifications. Bite the bullet and take it to a Lexus dealership and have them diagnose the problem. You don't have to get the work done there but the longer you wait, you could have paid for the diagnosis!
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