2.4L ENGINES DONT HAVE TEST PORT ON THE FUEL RAIL.YOU HAVE DISCONNECT THE FUEL LINE QUICK CONNECT FITTING AT THE POINT WHERE THE FLEXIBLE FUEL FEED HOSE CONNECTS TO THE RIGID METAL LINE LEADING BACK TO THE FUEL TANK. YOU WILL FIND THIS FITTING BEHIND THE ENGINE NEAR THE FIREWALL.CONNECT THE SPECIAL ADAPTER HOSE TO THE LINES AND CONNECT A FUEL PRESSURE GAUGE TO THE ADAPTER HOSE. FUEL PRESSURE SHOULD BE 41 - 47 PSI. BECAREFUL MAKE SURE FUEL PRESSURE TESTER CONNECTIONS TIGHT DONT LEAK.GAS WILL SPRAY EVERYWHERE CAUSE FIRE.
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