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Type: Posts; User: mjensen

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  1. Replies
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    Got it figured out! When I put the new harness...

    Got it figured out! When I put the new harness in, I failed to hook up the 12V supply to the injectors...doh!
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    Thank you for your response! That is very...

    Thank you for your response! That is very helpful to know. One question about the crank signal. Where should the source be coming from? Is it different between a '91 and a '94? The only constant...
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    Picked up a new ECM and harness from said truck. ...

    Picked up a new ECM and harness from said truck. EXACT SAME ISSUE!!! So, let me ask. Can a faulty oil pressure switch, or no oil pressure cause the injectors not to pulse?
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    Well, now I can't even get the software to...

    Well, now I can't even get the software to connect to the computer. I'm taking tomorrow off, so I'm going to run over to the local junk yard and pick up another computer. I'm just convinced that...
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    I have, and we've got fuel. I'm fairly certain...

    I have, and we've got fuel. I'm fairly certain that the computer is just not receiving SOMETHING that it needs in order to tell the injector circuit to ground.
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    I have verified that they have 12v and the...

    I have verified that they have 12v and the injectors do click with a 9v battery. I've checked the resistance in the injectors, as well as the wires running to the injectors, and they are well within...
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    Haha...Oops yes. I have Tuner Pro RT, and it's...

    Haha...Oops yes. I have Tuner Pro RT, and it's not pulling any data either.

    I have spark (it will run when spraying carb cleaner)
    All relays kick on (fuel pump runs while cranking) - I have not...
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    It's using the stock TBI distributor that was in...

    It's using the stock TBI distributor that was in the Blazer.
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    A little stuck getting started

    I have a '91 TBI 350 with the 1227747and ARJT chip that I am swapping into my '69 GMC. I have modified the harness (which is why I'm here LOL), and have tried to fire it up. The issue that I'm...
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