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#1 |
Professional Grade
Join Date: May 2003
Location: Fort McMurray, Alberta
Posts: 7,915
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What is this thing...
![]() It makes annoying noises when I turn my key to on... It does it in time with the seatbelt light? ![]() ![]() What I need to know is if I'd be breaking more than my buzzer if I attempted to bust this thing open and stick my VATS Signal Generator into it... Its easy enough to pull out if I am going somewhere and leaving the truck in a parking lot or something, and not super obvious that a theif will immediately know they are trying to steal a truck that has something a bit more advanced than a carb on it... Here is my signal generator, put beside a good ol' Canadian penny for size comparison... ![]()
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1995 Chevrolet 2 Door Tahoe (6.6L LBZ Duramax / ZF6 / NP241 with 1 ton solid axle swap) |
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#2 |
Garage Queen Material
Join Date: Oct 2002
Location: USA
Posts: 4,129
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that second pictures looks like its a serial port from a computer
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#3 |
Registered User
![]() Join Date: Jul 2003
Location: Franklin, NE
Posts: 387
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What is this thing...
Russell,
I think it is your seat belt warning buzzer, but I have never seen one with the leads like that. I checked the 80 wiring diagram I have, and it shows no leads off the buzzer. By the way, would you be interested in copies of the 80 wiring diagram? Let me know. Doug |
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#4 |
Professional Grade
Join Date: May 2003
Location: Fort McMurray, Alberta
Posts: 7,915
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I've got a couple of those too, it didn't mention those extra leads, so thats why I asked you guys first.
I took it apart, and found that it is jam packed with electronics, so I couldn't be able to fit the VATS sig gen into there... That is a serial port connector, Its called having lots of extra computers lying around, and not wanting to spend money on some other connector when you've got tons of em already... I gotta find something I can put the thing into though...
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1995 Chevrolet 2 Door Tahoe (6.6L LBZ Duramax / ZF6 / NP241 with 1 ton solid axle swap) Last edited by Russell; 08-16-2004 at 10:49 PM. |
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#5 |
california fill
Join Date: Apr 2004
Location: Sunny So-Cal
Posts: 694
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what exactly does this tone generator do and why do you want to put it into the buzzer?
pc |
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#6 |
Professional Grade
Join Date: May 2003
Location: Fort McMurray, Alberta
Posts: 7,915
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As you may or may not know, I am making the swap to TPI in my truck. I am running an 86 Corvette ECM, which means it has what is called VATS intergrated into it. VATS stands for Vehicle Anti-Theft System. The way GM did it was have a small resistor built into the key that you stuck into your ignition cylinder, it completed a circuit in there with the resistor between them, when the VATS module recieved this proper resistance reading, it would send a 5 volt square wave operating at 30hz to the ECM (computer) When the computer got this square wave, it'd start firing the injectors. I didn't want to bother playing with the VATS module, so I decided to bypass it by sending the ECM the signal it needed directly using this Signal Generator. I'll have it on a switch that I'll be hiding in the truck so it'll basically act as a really fancy kill switch. Best part is that if I am leaving the truck somewhere, I can pull this signal generator out, then even if the theif finds the kill switch, the truck won't start anyways.
I simply wanted to put it into the buzzer so I could have the setup looking as clean / factory as possible. I guess I'll have to go find a big relay, gut it, and put it all into there.
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1995 Chevrolet 2 Door Tahoe (6.6L LBZ Duramax / ZF6 / NP241 with 1 ton solid axle swap) |
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#7 |
california fill
Join Date: Apr 2004
Location: Sunny So-Cal
Posts: 694
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interesting! Id sure like to see the end result... is there a thread where you talked about converting to EFI? What parts do you have? Got pics? How are you going to do the fuel tanks?
pc |
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#8 |
Professional Grade
Join Date: May 2003
Location: Fort McMurray, Alberta
Posts: 7,915
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I don't really have any topic in specific, I've figured out most everything myself.
First thing I've learned -- Buy a complete, running TPI car. I've been nickled and dimed to death buying small things that the "complete" setup I bought didn't come with. Second thing -- Say away from 85 if you want to go with a MAF setup. Its inferior, and unreliable... I'll be upgrading to the 86 ECM before I even install the setup. As far as the fuel tank goes, I am installing a Blazer fuel tank from an 86 K-5 between the frame rails. I could stick with my single saddle tank, but its just too small (other tank rusted through and started dribbling my precious gas, I had a cup under it when I was at school, and someone stole all the gas that dripped into it ![]() If you are seriously considering a TPI in specific, you need to read the following website, it has everything you'll need to know about the TPI system: www.chevythunder.com
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1995 Chevrolet 2 Door Tahoe (6.6L LBZ Duramax / ZF6 / NP241 with 1 ton solid axle swap) |
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