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Old Feb 5, 2010 | 09:10 PM
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Default pnp switch

Can i skip wiring the pnp wiring and run the car without it?
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Old Feb 6, 2010 | 01:21 AM
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no, unless you are not running a electronic controlled tranny through the PCM
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Old Feb 6, 2010 | 04:37 AM
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what is the pnp switch?
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Old Feb 6, 2010 | 07:40 AM
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It tells the computer when you are in Park and Neutral and it also enables and disables cruise control.

If you take a look at any tuning software. There are a lot of PNP tables in there.
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Old Feb 6, 2010 | 10:48 AM
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So there is no way i can just bypass it?
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Old Feb 6, 2010 | 12:12 PM
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not unless you want you car to idle properly and cruise to work. You could just setup a toggle switch and flip the switch whenever you are in park and neutral. But the PNP switch should already be on a stock shifter.

Why do you need a bypass?
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Old Feb 6, 2010 | 02:32 PM
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Because i converted my car into a a4 car because it was orignally a t56 car and i put a a4 in it. I got the switch now but idk where to wire it
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Old Feb 6, 2010 | 03:12 PM
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are you running with the 98 wiring harness or did you upgrade to the 99+ wiring harness.
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Old Feb 6, 2010 | 03:41 PM
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I think it's a 99+ how can i tell if it's not?
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Old Feb 6, 2010 | 04:33 PM
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I am not too sure, I just see in your signature that you have a 98. What vehicle did you do the conversion on?

I have wiring diagrams for 99+ vehicles.
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Old Feb 6, 2010 | 04:38 PM
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the interior harness is stock the wiring harness from the motor i think is 99+
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Old Feb 6, 2010 | 04:46 PM
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So what you are saying is that, the Interior harness is a 98 harness and you got a 99 harness.

I got some bad news. I recommend you find a 98 engine harness. 98 is the bastard year when it comes to wiring. And you can not mix 98 and 99 stuff together with out major modification to both harnesses.
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Old Feb 6, 2010 | 04:49 PM
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Um what? Your the first and only person that ever said anything about this.
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Old Feb 6, 2010 | 04:56 PM
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Take it or leave it. I have done a lot of reading and research. And done a conversion of my own.

In 98 people complained on how sensitive the 98 gauges are so in 99 GM made the gauges less sensitive. And changed the wiring harness. You can mix match between 99 to 02 but 98 is the bastard year.

You run the risk of frying your PCM. I recommend you keep doing some more reading. And I dont know where you are getting your info. But keep doing some more reading.
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Old Feb 6, 2010 | 05:15 PM
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Well i got a few friends with hp tuners and i got a three year warrenty on my pcm so yeah
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Old Feb 6, 2010 | 05:19 PM
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Good Luck dude, cause it definitely sounds like you know what you are doing. I have only been doing this for 4 years and dont know what I am talking about.
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Old Feb 8, 2010 | 06:22 PM
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Originally Posted by tilly
Good Luck dude, cause it definitely sounds like you know what you are doing. I have only been doing this for 4 years and dont know what I am talking about.
my apologies. i did some research and i say sorry. But i did get confirmation my wiring harness is a 98
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Old Feb 9, 2010 | 11:20 AM
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I surely thought you could start & run an LS1, without the Park Neutral switch wired in. I mean with an automatic LS1 harness. I am temporarily running mine this way right now.
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Old Feb 9, 2010 | 05:01 PM
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Originally Posted by LS1GMCTruck
I surely thought you could start & run an LS1, without the Park Neutral switch wired in. I mean with an automatic LS1 harness. I am temporarily running mine this way right now.
Please explain?
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