1993 Lexus LS 400



July, 12, 2010 AT 4:32 AM

Engine Mechanical problem
1993 Lexus LS 400 V8 Two Wheel Drive Automatic 148641 miles

car is turning over but it is not starting


1 Answer



July, 12, 2010 AT 5:29 AM

What you need to do is determine if its a fuel or spark problem that's preventing it from starting-Do below: Get a helper disconnect a sparkplug wire or 2 and ground it to the engine atleast 3/16 away from ground-have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, coil's resistances, cap and rotor, distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it.

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