No Check Engine Light

[biggest424]

hi,i am new to this forum.i have a 1998 toyota celsior jdm or lexus ls400.

having difficulty getting the car started.i have replaced fuel pump,3 cam sensors and 1 crank sensor.only getting spark sometimes.also changed the ecu.

could i get info on what the fuel pressure should be.

[fsuguy]

Hi,

Have you checked both coils? It sounds like you have already identified a potential source for the problem. There is an easy enough check for the range of resistances within which both coils should be. You may want to check them before looking further.

[landar]

On a 98', I believe you have COP (Coil On Plug) for each sparkplug rather than the two coils with distributor of earlier years?(not completely sure on a Celsior). I think the fuel pressure should be in the 45-50'ish PSI range.

[Yamae]

Changed the ecu?

Then you can not start the engine without writing the security data or changing the key. The immobilizer prevents to start the engine.