LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Tuning

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Old Jan 18, 2012 | 01:54 PM
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I just installed a wet kit system on my car. I understand I need to tune the fuel trims and timing curve and would like to do this on my own, instead of having to take it somewhere every time I want to change my shot size. I'm wondering what type of cable I would need for my car. I've done some research and found the obd1 to usb and obd2 to usb cables. Being that my car is a 95, the crossover year, I would only assume that I would need the obd2 cable just like my scanner uses the obd2 cable to scan my car. I just want to make sure I get the right cable, and if any obd2 to usb cable will work.
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Old Jan 18, 2012 | 02:08 PM
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No, any OBD 2 cable will not work.

Let me give you a word of advice from plenty of experience. USES MOATES....

http://www.moates.net/aldu1-and-cabl....html?cPath=64

You can tune the fuel with the jets since you have a wet kit... you will need a wideband and / or learn how to read plugs properly. Reading the plugs is the best method anyway but more labor intensive and probably not completely necessary up to a 150 shot.

Start by pulling 2.5 degrees for each 50hp of nitrous. That would be 7.5 for a 150 shot.
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Old Jan 18, 2012 | 02:16 PM
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Ok, thanks. What exactly is the difference between the moates cable and a regular obd2 cable? The only thing that confuses me, is the obd2 cable w/ my scanner works for my car, so why wouldn't a obd2 to usb cable work with it. Is the pin layout different? And what software do you personally recommend?
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Old Jan 18, 2012 | 02:19 PM
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A normal OBD 2 cable is designed to scan data, not write it to the PCM for 1.

Secondly, all the other brands I've tried were very unreliable.

Moates cable is rock solid.

I use Tuner Cats and TunerPro personally.
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Old Jan 18, 2012 | 02:20 PM
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I'm looking into getting a program that can read the PCM, make changes, & check/clear DTC's. Thinking about the LT1 pro tunig kit from tunercat. Just a bit much for me right now.
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Old Jan 18, 2012 | 02:28 PM
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Originally Posted by gregrob
A normal OBD 2 cable is designed to scan data, not write it to the PCM for 1.

Secondly, all the other brands I've tried were very unreliable.

Moates cable is rock solid.

I use Tuner Cats and TunerPro personally.
Gotcha, thank you very much buddy, appreciate your input.
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Old Jan 18, 2012 | 02:33 PM
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Moates is the man. All the stuff I have from him works as advertized even with plenty of abuse, no muss no fuss. That is definitely not the case with 99% of tuning stuff in general.
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