The intake side uses VVT-i , adjustable within a 53° crankshaft angle range to optimize torque and economy.
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This is where 90% of issues arise. The manual will explain how to measure fuel pressure at the rail and how to test the high-pressure fuel pump. Do not attempt to open the high-pressure lines without consulting the manual; residual pressure can cause serious injury. The intake side uses VVT-i , adjustable within