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XC90 '02–'15 General Forum for the P2-platform XC90 model |
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2014 XC90 3.2L high fuel consumptionViews : 191 Replies : 0Users Viewing This Thread : |
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Apr 29th, 2024, 13:15 | #1 |
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Last Online: Apr 29th, 2024 17:05
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Location: Brooksville, FL
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2014 XC90 3.2L high fuel consumption
My XC90 randomly started consuming too much fuel. A tank would last over 400 miles and now it barely makes it to 300 miles. When cruising I can see the MPG fluctuate from one moment to another. Like at 55mph it usually does about 26mpg and now it drops to between 16-19 mpg. I had already changed spark plugs, filters, done a few intake and fuel tank cleanings in the last year. Recently I disassembled the whole exhaust system and cleaned all 4 cats and O2 sensors. Exhaust manifold gasket was bad so it was changed and the power is there now. Also, just replaced the PCV valve. I checked the intake and exhaust solenoids and they seemed ok. I removed the fuel rail, cleaned the injectors and put a new fuel pressure sensor since it was not expensive but none of it seems to have helped. I am a bit lost into this whole thing at this point.
Only codes related to that are ECM-P017100 & P017400.(System Too Lean (Bank 1 & Bank 2)) I have used VIDA and D5T5 to run diagnostics but no real answer there. Any suggestions would be appreciated. |
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