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No injector Pulse

Tiny
MAGNUM MAN
  • MEMBER
  • 1995 TOYOTA TACOMA
  • 175,000 MILES
I have a 1995 Toyota Tacoma with 2.4L engine. It was running ruff and started stalling when warm, would not restart for at least 45 min. Then would only run about 15-20. Eventually quit all together, replaced crank sensor, plugs, cap and rotor. Now computer reads P1300 code and the fuel injector don't pulse. Can someone please help.
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Saturday, August 20th, 2011 AT 12:50 AM

10 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
Test for spark at the plug end of the wire using a spark tester. If none found, check for power supply on the + terminal of the coil with the key on.

Test for injector pulse using a small bulb called a noid light. If none found, check for power supply at one side of the injector with the key on.
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Saturday, August 20th, 2011 AT 10:08 AM
Tiny
MAGNUM MAN
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  • 5 POSTS
Wrench
I have done that, the spark plugs have fire but the injectors are not pulsing.
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Saturday, August 20th, 2011 AT 2:04 PM
Tiny
WRENCHTECH
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OK, do you have power to one side of the injectors?
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Saturday, August 20th, 2011 AT 2:39 PM
Tiny
WRENCHTECH
  • MECHANIC
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Also, does the check engine light come on for bulb check when the key is turned on?
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Saturday, August 20th, 2011 AT 2:39 PM
Tiny
MAGNUM MAN
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  • 5 POSTS
Wrenchtech
Both sides of the injectors have a green light, and at some point the check engine light has been removed. However it does have a code P1300.
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Saturday, August 20th, 2011 AT 5:44 PM
Tiny
WRENCHTECH
  • MECHANIC
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So, what does that mean? Does it have power or not?
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Saturday, August 20th, 2011 AT 5:48 PM
Tiny
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It is grounded. No power.
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Saturday, August 20th, 2011 AT 5:52 PM
Tiny
WRENCHTECH
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OK, the injectors are powered through the ignition switch so you have to trace it. You also need to try to pull codes to make sure the computer is powering up since your check engine light doesn't work.
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Saturday, August 20th, 2011 AT 5:58 PM
Tiny
MAGNUM MAN
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  • 5 POSTS
I have already pulled the codes, that is the P1300 code that I said it is giving.
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Saturday, August 20th, 2011 AT 6:04 PM
Tiny
WRENCHTECH
  • MECHANIC
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The code is for an igniter problem which means that you shouldn't have spark but that has nothing to do with not having power supply to the injectors.
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Saturday, August 20th, 2011 AT 6:33 PM

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