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Lt1 harness mods from stock....so far so good!


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I started to delete the unneccesary stuff from my 95' LT1 harness tonight. So far its going great. With the help of ALLDATA online this is going to be a cake walk! They pretty much give you a diagram for what the engine needs to run and what is needed for A/C, emissions, guage sensors(for a stock LT1 TA....I have my own guage sensors) and other nonessential stuff. Im glad I didnt buy a painless harness for like $600! I still have to buy a data link connector and a pair of O2 sensors for sure. I wont know if the sensors I have on the engine now are the same as the 95 till I get the harness test fitted on it.

 

So how much is the TunerCat software? I see a lot of different prices on their site but I dont know what I need? Tim? Mas280?

 

Thanks,

 

Guy

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IIRC, the software is ~$80, and then you need the correct definition file ($EE, I think), which is another $20.

As for the harness, I too wonder why folks pay the ridiculous $$$ for the aftermarket harnesses......

Don't forget to download freescan and get a connector from Andrew (links on Tunercat's site).

Also, the OBDI DLC connector can be grabbed from any GM OBDI car at the JY. I got mine from a cavalier.

 

Tim

{edit}Tuner software is $69.95 and the definition file is $19.95

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Has anyone tried using a standard 9-pin serial port connector?

 

I have the DLC from the donor car but I'm also going to connect a 9-pin serial connector to the communication lines of the PCM so it's easier and cheaper to build a cable for the laptop.

 

I'm not sure whether I'm going to use TunerCat or LT1 Edit, which do you guys like better?

 

Wheelman

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With the help of ALLDATA online this is going to be a cake walk! They pretty much give you a diagram for what the engine needs to run and what is needed for A/C, emissions, guage sensors(for a stock LT1 TA....I have my own guage sensors) and other nonessential stuff.
What is 'ALLDATA online'? I'd like to see the diagram for my 94 LT1.
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ALLDATA is like Michele or Chiltons. Its an online service manual basically. You pay $25 per year for the first vehicle you subscribe to then its $15 for every vehicle there after just as long as you keep 1 supscription up to date. Otherwise you start over with the $25 first vehicle fee.

 

Its really a great manual if you ask me. I personally hate Michele's manual. Its very easy to use and they have very good wiring diagrams.

 

Heres the link.... http://www.alldata.com/ Go to the "DIY" links.

 

wheelman, I wouldnt see why you couldn't use a 9 pin serial connector? If you never plan to hook it up to a standard scanner then I would say thats the way to go.

 

Guy

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