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I have been thinking about geting a code reader. It will primary be for my 85 vette but I also have a 2004 Tahoe.
Anyone have one they like or would recommend?
I dont want to spent a fortune on it.
Do these ones that hook up tp laptop work well?
How about code updates for the newer cars?
Thanks for the help
two different systems-one won't work for the other.Most guys just use a paper clip on their earlier C4s. Code readers are fairly cheap-but that's generally all they do. If you want a scanner-one that hooks up to a laptop then you can log data-showing if sensors etc. are within
parameters. My advice -learn how to obtain (paper clip) and read codes on your 85-very simple. As for the Tahoe-hope others chime in.
From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
There's code readers
and scanners scan/tools.
Then there's OBD1 (your vette) and OBD2 (your Tahoe)
Your tahoe might be able to show you codes without any tools, it usually means cycling the key on/off a few times and holding the odometer reset, or something like that.
Buy a used Snap-On scanner (brick), many pro's are going to the "Modis" so you should be able to get one cheap, do not get one with a cartridge for any thing later than a 95.
If you can buy one with out a cartridge i think i might have a cartridge that will work for your 85.
For your 2004, you are going to need a current cartridge for that.
I can find out for you what it would cost for just the US only version with and with out the trouble shooter if you would like.
It will not go out of date because the cartridges are flash up gradable and are a very good tool.
Then there's OBD1 (your vette) and OBD2 (your Tahoe)
Your tahoe might be able to show you codes without any tools, it usually means cycling the key on/off a few times and holding the odometer reset, or something like that.
Your vette needs a paperclip.
How do I use the paperclip??
any tech articles on it?
Actron makes a nice scan tool that will read both OBD I + II. You just need an additional connector that is $30.00, and the scan tool was $199.00 at Advanced Auto. I use this on both my 2004 Chevy Colorado, and 1991 Corvette. They have a website to look at their various products, just do a Google search on Actron.
How do I use the paperclip??
any tech articles on it?
thanks
dave
The paper clip method is very easy.
1. Bend a paper clip into the spape of a U.
2. Remove the cover (if you still have one) of the ALCL connector underneath the driver's side dash and plug them into the the top two connectors closest to the tranny tunnel. They are labeled A and B.
3. Turn the key to on(not running) and look at the service panel for the check engine light. It will be flashing. The first three signals will be 1 and 2. Each one will blink 1 for 1 and 2 for 2 with a pause between the 1 and 2. The next set of codes will be the trouble code. Again you'll see the 1 and 2 and then a pause. If the code is 33 you'll see the light flash 3 times quickly and a pause then 3 more flashes quickly. When the last of the codes is done you'll see the 1 and then the two flashes and then the process will start over again.
Although this is the basic method of getting the codes you'll still need to understand what they mean so you're next best bet is to get a FSM from www.helminc or look on ebay for a used manual. For the Helm you can't beat the troubleshooting charts as they are extremely helpful in tracking down the problem. Good luck!
Last edited by goldeneye_vet; Mar 16, 2006 at 10:10 PM.
well I got a mt2500 snap on scanner from ebay.
wondering if you ever found the cartdrige?
also might you have any other parts or manuales for it?
thaks
Dave dbs_55@yahoo.com