Lexus es300 fuel punp wiring
#121
Driver
Thread Starter
I have a new unused high beam headlight that fits an 82 continental seems that would be sufficient for load ,i have wire and connectors to connect to the headlight and make a good connection as far as headlight to test wire goes. What i am missing is connectors to make a good solid connection to that trapezoid plug...checking auto parts stores nearby...
#122
Pole Position
I have a new unused high beam headlight that fits an 82 continental seems that would be sufficient for load ,i have wire and connectors to connect to the headlight and make a good connection as far as headlight to test wire goes. What i am missing is connectors to make a good solid connection to that trapezoid plug...checking auto parts stores nearby...
Hope this helps and best of luck!
#124
Lexus Fanatic
Please start from the beginning. Power the fuel pump direct from the battery through a fuse. Try and start the car. If it starts then dies your problem is not fuel pump related.
#125
Driver
Thread Starter
Doing that it still does the same, Thanks...Yeah also when you close the circuit the pump engages and pumps a lot of fuel I saw this with the fuel line off at filter ,the pump pumps gas when you apply 12v to it too but same result car still starts and dies .,any way it goes you put 12 volts to the pumps it pumps fuel., at the start of this with the line off at filter the pump would prime and then no fuel would come out of line after that .I believe that the pump is fine and that it is in the wiring that's why i was looking to put 12v to this pump in this beginning of all this. I will continue to trace through the wiring for all that can be possibly related to the whole start and then die immediately issue I have .I am done with that fuel pump...
Last edited by Brian97S; 06-01-21 at 02:27 PM.
#127
Driver
Thread Starter
No that.is misinformation that I was told that I posted before I ever got the car to me ,when 12 v is applied straight to the pump it pumps a lot of gas thats all but the car still starts and immediately dies, after first trying that I removed the bottom line off the filter and watched pump with 12 v direct dump fuel out then using the car it as was i tried to start it that way too without 12 v applied and watched some gas come out when it primed or I guess attempted to but none while attempting to start,The only way this pump runs is if you put 12v directly to it or close the circuit
Last edited by Brian97S; 05-30-21 at 02:22 PM.
#128
Pole Position
Yeah, but it now completely turns the tables! I operated from the fact that the car actually runs if you use a separate power source. Now it all indicates that your pump may indeed be working as intended, and the issue is hidden somewhere else. It is time to look elsewhere.
How the car dies? Does it just shut off or sputters before quitting?
Is the Check Engine Light illuminated on the dashboard when the car starts?
Do you hear any vacuum leaks as the engine runs?
What brand Spark Plugs and Wires did you use? Are the Plugs regular Copper or Platinum?
How the car dies? Does it just shut off or sputters before quitting?
Is the Check Engine Light illuminated on the dashboard when the car starts?
Do you hear any vacuum leaks as the engine runs?
What brand Spark Plugs and Wires did you use? Are the Plugs regular Copper or Platinum?
#129
Driver
Thread Starter
it just shuts off ,check engine light is on when you turn on key and on when car briefly runs ,dont know plugs wires and coil packs were replaced a few months ago.as i said feed it carb cleaner and it will run like a new engine ,,until u quit spraying...
Last edited by Brian97S; 05-30-21 at 03:10 PM.
#130
Driver
Thread Starter
it just shuts off ,check engine light is on when you turn on key and on when car briefly runs and by briefly i mean maybe 1 sec... ,dont know plugs wires and coil packs were replaced a few months ago.as i said feed it carb cleaner and it will run like a new engine ,,until u quit spraying...
Last edited by Brian97S; 05-30-21 at 03:18 PM.
#131
Lexus Fanatic
Sounds like the security system is disabling the fuel injectors. But that's a guess not enough clarity to know what's going on.
#133
Pole Position
#134
Lexus Fanatic
Can easily check ,the security light tells you what's going on if it goes out with the key inserted this means it accepts the key and the car should run.
Maybe, I can't verify this. A dealer tech told me the ECU disables the injectors disabling spark allowing only fuel would mean gas gets dumped into the engine unburned.
Maybe, I can't verify this. A dealer tech told me the ECU disables the injectors disabling spark allowing only fuel would mean gas gets dumped into the engine unburned.
Last edited by LeX2K; 05-30-21 at 03:43 PM.