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1989 Hilux ignition wiring diagram

Any chance of an ignition wiring diagram for a 4WD Hilux with a 3Y engine, ( ignition coil, igniter and pulse coil are inside the disi)

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Posted on Jan 02, 2017

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SOURCE: I have a 1990 Toyota

never seen a petrol model of this one but i should imagine its either an earth or the take off for the rev counter .put a meter across the wires and chassis and see what happens ,then you will know whats the feed and whats not

Posted on Jan 15, 2009


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Use a test lite on negative side of coil, engine cranking, the lite should pulse?
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Hope this helps. The ignition coil:
  • changes low-voltage pulses from the PCM to high-voltage pulses.
  • fires 2 spark plugs simultaneously.
  • has 3 transformers.
    • One transformer fires the spark plugs for cylinders 1 and 5
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Spark plug wires:
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How to remove a 1989 pickup chevrolet ignition coil ,6 cil.,chayane

GM Full-Size Trucks 1988-1998 Repair Information
(sSee Figures 1, 2 and 3)


Fig. 1: Ignition coil mounting-4.3L engines
  1. Tag and unplug the wiring connectors from the coil and the coil wire.
  2. Unfasten the retainers securing the coil bracket and coil to the manifold.
  3. Remove the coil and bracket and drill out the two rivets securing the coil to the bracket.
  4. Remove the coil from the bracket.
To install:
The replacement coil kit may come with the two screws to attach the coil to the bracket. If not, you must supply your own screws.


Fig. 2: Ignition coil mounting-5.0 and 5.7L engines


Fig. 3: Ignition coil mounting-7.4L engines
  1. Fasten the coil to the bracket using two screws.
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Hope this help to solve it (remember comment and rated this).

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Go to and register they have good wiring diagrams for your truck.What I saw was all the relays going to ground so you should have 12V coming off the ignition switch.

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I have a 1990 Toyota Hilux 4WD 3Y electronic ditributer engine. The ignition coil is inside the disi. The wiring has been tampered with and I need to know what the two wires do that go to the disi,...

never seen a petrol model of this one but i should imagine its either an earth or the take off for the rev counter .put a meter across the wires and chassis and see what happens ,then you will know whats the feed and whats not

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