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Mechanic checked non-starting vehicle, said code P0012 showed which he said meant a timing issue, although all timing checked out. Car subsequently started. Test drive code returned, so they replaced the vvt solenoid. Went to collect this evening, car wouldn't start. Tech had left til tomorrow. Any clues here?
 

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Oil pressure control issue......these vvti engines are dependant on oil flow. If oil psi is low or oil is dirty, you get engine performance problems. Step 1 should be to replace oil & oil filter.......not only does oil pressure dictate valve timing 25° it also contributes data to fuel trims and ignition timing.....very important to have good oil.
 

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Oil pressure control issue......these vvti engines are dependant on oil flow. If oil psi is low or oil is dirty, you get engine performance problems. Step 1 should be to replace oil & oil filter.......not only does oil pressure dictate valve timing 25° it also contributes data to fuel trims and ignition timing.....very important to have good oil.
What oil is good oil for 2005 Xbox...???
 
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