Need Help With My SC300!!!
#1
Need Help With My SC300!!!
The engine on my 1993 SC300 occaisionally shuts off right after I start the car and it will sometimes die while I'm driving, but the electricity stays on. The car has been at the dealership for the past 9 days but they can't get the car to die again nor do they know what is wrong. I think it may be the fuel pump, but I'm not sure since I can't find any other topics with the same problem. Any help would be appreciated since it is getting dangerous to drive it more than a few miles at a time.
#4
I had mine do the same thing.....died on me twice while driving and wouldn't start again till the next day....I'm a mechanic, and am now driving around with test equipment in the car just hoping that it will die again so I can diagnose it, fix it, and end the paranoia.
#6
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I'm pretty sure it's the fuel pump ecu. It's located on the driver side of the rear panel. Remove that and you will see a black ecu. Search 12v fuel pump ecu mod and it will show you what you need to do to bypass it. This should fix your car issues. It's easy to do!!! Good luck!
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#11
^ Nothing on the throttle body would cause the engine to shut off.
Btw, I fixed my problem today.......car cut off in the middle on an intersection, had power to the fuel pump ecu, but not coming out....bypassed it on the side of the road and had it running again in 10 minutes....hope it cures you problem as well!
Btw, I fixed my problem today.......car cut off in the middle on an intersection, had power to the fuel pump ecu, but not coming out....bypassed it on the side of the road and had it running again in 10 minutes....hope it cures you problem as well!
#14
The engine on my 1993 SC300 occaisionally shuts off right after I start the car and it will sometimes die while I'm driving, but the electricity stays on. The car has been at the dealership for the past 9 days but they can't get the car to die again nor do they know what is wrong. I think it may be the fuel pump, but I'm not sure since I can't find any other topics with the same problem. Any help would be appreciated since it is getting dangerous to drive it more than a few miles at a time.
Grounds to check/have checked would be
1. Main ground from batt to engine block
2. Cylinder head to firewall
3. Lower intake runner (injector circuit ground can cause the behavior you describe)
4. Fuel pump ground from the tank assembly
Good luck.
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