badmix
1/2 ton status
computer under dash.
I removed oem carb and running holley street avenger
I removed oem carb and running holley street avenger
CK5
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What DOES the computer do on 84 K5 ?
- Thread starter badmix
- Start date
Mostly the carb, if you have a stock 700r4, then maybe lock up TCC, (I'm alittle fuzzy this) which you want to keep. Do you have a speedo cable? If not then the computer runs your speedo via the vss
does your hei dist have a serperate 4 wire weather pack connector ? if so its for the ESC electronic spark control .
badmix
1/2 ton status
I replaced oem dizzy with mallory.
Speedo cable goes direct to transmission from speedo gauge
When i pulled oem carb, the weather pak connection is jus dangling on firewall
Speedo cable goes direct to transmission from speedo gauge
When i pulled oem carb, the weather pak connection is jus dangling on firewall
Do you have 700 or t350?
Sounds like your computer might be dead weight.
Sounds like your computer might be dead weight.
badmix
1/2 ton status
700r
If not done already, you may need to modify your trans.
https://www.summitracing.com/parts/..._91FIyNGcZefz-6x6GMO6kNRzuGeob2IaAg9TEALw_wcB
https://www.summitracing.com/parts/..._91FIyNGcZefz-6x6GMO6kNRzuGeob2IaAg9TEALw_wcB
badmix
1/2 ton status
My lock up is fine, i had some vacuum thingy go bad that wouldnt let trans do what it needed to, once replaced it worked. Thought it was lock up solenoid in trans but it wasnt
So the computer is not comandicom lock up?
badmix
1/2 ton status
I dont know, reason asking what does it do, lol
You have a 305 originally, if so and it has Calif emissions it will have a
computer that controls timing to prevent knock. It should have a 4 wire pigtail
coming thru the firewall on the left side of distributor.
computer that controls timing to prevent knock. It should have a 4 wire pigtail
coming thru the firewall on the left side of distributor.
badmix
1/2 ton status
I have a 305, it had air pump etc, got rid of all that. I have a 3 or 4 pin weather pak i disco’d from old carb and it jus dangles
At this point the computer does nothing.
Exactly
badmix
1/2 ton status
Ok thanks, ill probably leave ,dunno yet,.lol
I think an 84 would have a vacuum switch to control the torque converter lock up ...
I don't think the computer in an 84 is capable of running Minesweeper, let alone anything to do with the trans.
Yeah I have forgotten, virtually all of my ccc experience. Think I might have the GM CCC train book in garage somewhere.
Trucks never got the CCC, except in California. For 49-states, the computer you find behind the glove box is the ESC, as mentioned above. You can bypass the box by jumpering 2 of the 4 pins in the weatherpack connector together. Or you can convert the distributor to the non-ESC version by swapping the ignition module. It's probably also possible to make an aftermarket dizzy work with the ESC box in the opposite fashion, but it's possible nobody has ever wanted to.
I remember looking at using an ESC box for knock sensing, feeding an EFI system or something. Although they are probably nearly free, there was something that makes generic amplifiers more worthwhile, I just can't remember what the reason was.
I remember looking at using an ESC box for knock sensing, feeding an EFI system or something. Although they are probably nearly free, there was something that makes generic amplifiers more worthwhile, I just can't remember what the reason was.
badmix
1/2 ton status
I have hei mallory dizzy when i replaced carb. I disco’d ecu and fired it up, didnt drive it but dont see issue.
