Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!
2005 subaru outback 2.5 sohc 4eat trans cam timing is correct idles perfect
lately i have noticed my mpg has dropped from 24 avg to 16 mpg same driving habits and load.also experiencing ping on startup and minor dieseling on shutoff.any ideas before I spend $ on sensors.car is well maintained good tuneup oil&filter every 3000 mi. no carbon buildup no dtc I have noticed sluggish acceleration from time to time.maybe cam,crank or knock sensor?fuel systemand filter are clean I use lucas fuel treatment religously help!
yes but limited to live data only ignition timing @idle 15 btdc 36@3500 so those are good a buddy suggested to clean the maf probe as i had a random lean fuel trim both banks did that and will drive a couple days and see if everything returns to normal