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8th February 2019, 16:25 | #1 |
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rover 75 Join Date: Apr 2013
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Audi A4 sline 170 2007 2.0tdi low mpg
Hi all wrong car for here but trying to diagnos low mpg from manily city driving 20/30 % highway mixed driving but mainly light-footed.
Thinking possibly Maf related or injectors Using Delphi which I'm new to I'm checking values of these or anything else that's has a sensor to eliminate Anyone know what sort of values I should be seeing on Injectors Maf Boost pressure Thinking about manually adjusting cam in advance position to get power lower down for city driving apparently it's easy lol Al
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14th February 2019, 12:52 | #2 | |
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Quote:
Ok so done a few tests on the maf via torque app And in 3rd gear I'm peaking air flow rate of 150g/s at 5k revs then drops when revs at top to hold steady 120g/s On idle it's reading around 8g/s My question is the idle value high and should flow rate be dropping when rev counter maxed or do I possibly have an out of spec maf?
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