SPONSORED LINKS

No voltage to distributor wire harness

Tiny
KEVNLKING
  • MEMBER
  • 1993 LEXUS GS 300
  • 3.0L
  • 6 CYL
  • RWD
  • AUTOMATIC
  • 229,000 MILES
Do the Distributor wire that plugs into the distributor suppose to have voltage. I replaced all fuses and relays, ignition coil, cap, ignition module, rotor and ecm.
Saturday, July 5th, 2014 AT 7:24 PM

13 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,128 POSTS
Are you referring to the spark plug wires or the wiring harness that supplies power to the distributor?
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
+2
Saturday, July 5th, 2014 AT 7:55 PM
Tiny
KEVNLKING
  • MEMBER
  • 24 POSTS
Yes the wiring harness that supplies power to the distributor. Can I run a hot wire to the harness
Was this
answer
helpful?
Yes
No
+2
Saturday, July 5th, 2014 AT 8:03 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,128 POSTS
No. If I recall on these, 12v will damage the ignition system. Since you have already replaced so much, I think you need to check the ignition switch itself.
Was this
answer
helpful?
Yes
No
Saturday, July 5th, 2014 AT 8:16 PM
Tiny
KEVNLKING
  • MEMBER
  • 24 POSTS
Ok I will look into replacing the switch all of the other plugs have voltage going to them ignition module, tps, icm etc. But the plug that plugs into the distributor
Was this
answer
helpful?
Yes
No
+1
Saturday, July 5th, 2014 AT 9:43 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,128 POSTS
Before you replace the switch, trace the wiring to the distributor to make sure there are no breaks or disconnections in the wiring. Check them back to the computer to see if there is corrosion or other issue that could be causing the problem.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Sunday, July 6th, 2014 AT 2:15 PM
Tiny
KEVNLKING
  • MEMBER
  • 24 POSTS
When I removed all of the spark plugs I saw water or fuel inside two of the cylinders. I believe it is fuel because it smells like gas and it is not green the color of antifreeze. So I put all the spark plugs back in except one spark plug and When I tried cranking the engine with one spark plug removed the fuel shoots out the spark plug hole. Does it suppose to do that and do it suppose to be a puddle of fuel in the two of the cylinders
Was this
answer
helpful?
Yes
No
Sunday, July 6th, 2014 AT 7:16 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,128 POSTS
No, it shouldn't do that. It is happening because there is no spark to ignite the fuel and burn it. The fuel injectors are still putting fuel into the cylinder as they should. Since there is no spark, it is flooding and filling with gas.

Once you get it running, check to make sure the engine oil isn't full of fuel. If it is, change it.
Was this
answer
helpful?
Yes
No
Monday, July 7th, 2014 AT 7:49 PM
Tiny
KEVNLKING
  • MEMBER
  • 24 POSTS
1993 lexus gs300 is dumping to much fuel in the intake. If I unplug the fuel pump connector and run it straight the car runs fine but if I plug it back the car shuts off
Was this
answer
helpful?
Yes
No
Monday, July 14th, 2014 AT 3:25 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,128 POSTS
What are you disconnecting to make it run? Is it power to the fuel pump? If that is the case, then the fuel pressure regulator is bad. However, that doesn't pertain to no power to the distributor.
Was this
answer
helpful?
Yes
No
Monday, July 14th, 2014 AT 7:23 PM
Tiny
KEVNLKING
  • MEMBER
  • 24 POSTS
I unhooked the fuel pump connector and ran a wire direct and every time I plug it back in the car dies and wont start and then I start smelling gas fumes.
Was this
answer
helpful?
Yes
No
Tuesday, July 15th, 2014 AT 4:34 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,128 POSTS
You ran a wire direct to the fuel pump?
Was this
answer
helpful?
Yes
No
Tuesday, July 15th, 2014 AT 10:04 PM
Tiny
KEVNLKING
  • MEMBER
  • 24 POSTS
Yes
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Wednesday, July 16th, 2014 AT 5:56 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,128 POSTS
Then there can't be any power going to the pump via the normal route. Have you checked the power supply for continuity?
Was this
answer
helpful?
Yes
No
+1
Wednesday, July 16th, 2014 AT 8:55 PM

Please login or register to post a reply.

Related Engine Wiring Content

VIEW MORE

Sponsored links