got one problem with 1jz engine,the car idle fine,it boost fine,the turbo is spool really quick ,when the engine cold the car run pretty good but after it getting hot it start to lose performance,when you hit the gas it ain't goin up as fast as it used to be..all i say is the engine run about 30-40 percent of it power.i have check the spark plug,wires,coil pack.i dont know it got something to do it fuel pump or something else ..please help me if someone have some idea...thank in advance...
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