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3VZ Ignition Issues

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Old 09-15-2010, 01:04 PM
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Yep. the car is only running from the gas it gets from the cold start injector
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Old 09-15-2010, 01:21 PM
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It may not be the ECU. Is the CEL illuminating when you turn the key to ignition?
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Old 09-15-2010, 01:26 PM
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yep...
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Old 09-15-2010, 01:38 PM
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Good. Then, try shorting the two diagnostic terminals labeled FP and B+ located in the diagnostic port under the hood. Use a paper clip or stiff wire. This bypasses the fuel pump relay and AFM fuel pump switch circuits. See if it will run then.
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Old 09-15-2010, 01:40 PM
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tested,nothing tested the relays everything good.
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Old 09-15-2010, 01:41 PM
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the only cold start injector is working
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Old 09-15-2010, 01:45 PM
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Test the distributor, yet? If the ECU doesn't get crank rotation feedback, it won't fire the injectors.
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Old 09-15-2010, 01:48 PM
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the truck start, but hesitate like crazy
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Old 09-15-2010, 01:50 PM
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if the distributor doesn't work will the truck have any spark?
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Old 09-15-2010, 01:51 PM
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I understand that. But, if the Ne and/or G1 signals are lost to the ECU at any point upon ignition or running, then the ECU injector driver's will not operate.
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Old 09-15-2010, 01:51 PM
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because it got a pretty nice one
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Old 09-15-2010, 01:57 PM
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ok how do you test the distributor ?
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Old 09-15-2010, 02:29 PM
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the only way I know of testing the distributor is taking the cap off and turning the key... see if the rotor spins.

UPDATE: Apparently i got a WHOLE new VAFM. I got it at whole sale cost for 182.63. It wasn't just the clip.
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Old 09-15-2010, 02:48 PM
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sweet, I am glad it workout for you,

the distributor turns.
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Old 09-15-2010, 02:48 PM
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or spins..
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Old 09-15-2010, 03:23 PM
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subscribed
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Old 09-15-2010, 03:42 PM
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That's not the way to test the distributor. Here's a good start.....

http://personal.utulsa.edu/~nathan-b...12onvehicl.pdf

You're looking to test the pick up coil/signal generator.
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Old 09-15-2010, 03:43 PM
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Originally Posted by MaK92-4RnR
the only way I know of testing the distributor is taking the cap off and turning the key... see if the rotor spins.

UPDATE: Apparently i got a WHOLE new VAFM. I got it at whole sale cost for 182.63. It wasn't just the clip.
Ah-ha! I thought so. Anyway, good for you.
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Old 09-15-2010, 03:52 PM
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Sweet...THANKS...I will test it tomorrow
THANKS...I will test it tomorrow

Originally Posted by thook
That's not the way to test the distributor. Here's a good start.....

http://personal.utulsa.edu/~nathan-b...12onvehicl.pdf

You're looking to test the pick up coil/signal generator.
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Old 09-15-2010, 04:04 PM
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Doesn't the "Pulse" from the Distributor activate the Igniter module and then the igniter activate the coil that send electricity to the spark plugs?
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