jcurrieirocz

Whats the difference and how can I tell what one I have???

RB83L69

CC= computer-controlled

non-CC = non-computer-controlled

If you have a US-market 3rd gen and it has the stock carb, it's computer-controlled (or at least, it came that way). Look at the front right corner of it; if it has a blue thing sticking out the top with a connector going to it, it's computer-controlled.

yanfoo

Try this
https://www.thirdgen.org/techbb2/sho...light=qjet+pic

Go down to Sitting bull post with the pic with Red distributor.
I have a Canadian T/A, with the non-cc Qjet. (just like the one on the pic)

yanfoo

I have a question:
I was looking at Sitting bull Qjet again...
What is the "selenoid type" thing on the right front(near the throttle cable)
https://www.thirdgen.org/techbb2/att...&postid=636589

--> I dont have this piece on my car!!!!

I do have cruise control, but it's not functional and i have not look why yet.

Apeiron

Maybe the throttle kicker for the A/C?

jcurrieirocz

ok Im still not sure but im going to look for that conector tomorow,,,,I know for sure that my choke is on the oposite side as redbull's,,,if that helps any???

Jester

The easiest way to tell is to look for the M/C solenoid plug. If you have a plug with a couple wires going right into the top surface of the carb itself, it's computer controlled.

Apeiron

Your choke is on the driver's side? Not on a Qjet.

yanfoo

I dont have AC on my car. So you might be right.

CC-Qjet should have a big "TPS" i think i saw that on Doug Roe Book.

jcurrieirocz

geess I cant belive i screwed that one up!!! My choke is on the pass. side! Oh well I must of been thinking of my old car with the two barel carb (i dont know?).

Ok heres the pics can you guys see if its computer controled,,,I dont think it is but I want to be 100%.

jcurrieirocz

ok heres the otherside.....

Apeiron

Doesn't look computer controlled to me, I don't see a TPS anywhere.

zupmanZ28

looks CC to me....

99Hawk120

LOL, that's in a CAMARO???

That carb is a non-computer truck/van carb with the electrically activated "dual capacity" accelerator pump. Can't remember how it actually works, but I'd bet money hooking the MC solenoid connector up the grey solenoid isn't it.

The big give away is NO TPS on the driver's side.

Also, it looks like you're running a non-computer controlled distributor. I can just BARELY see the vacuum can in the pictures, behind the EGR valve.

Pony Killer

it's not a third gen CCC carb. at least, not a standard us emmissions one....

i'd be willing to bet the distributor's got vacuum advance.

Looks like something off a truck.

A closer look at the picture, you can see the vacuum advnance distributor, that's not CCC setup. what that plug goes to.. got me by the tail.

99Hawk120

Found this on the net:

1985/86 Q-jets in U.S. trucks have dual capacity accelerator pumps. When the engine is cold, more fuel is needed for transition from idle to part-throttle. When the engine is warm, less fuel is required. Dual capacity pump solenoid (plug on top right front of carb) is activated by coolant temperature sensor (sensor in thermostat housing). At 170 degrees pump solenoid energizes, dual capacity pump valve opens and pump capacity reduces by about one-half.

Apeiron

Yeah Sitting Bull's carb had the same thing, took a while to figure out what it was. I used to think it wasn't the original carb but we never ran the numbers.

Y'all can just forget everything you know about factory thirdgen Qjet setups, this is Canada.

99Hawk120

I don't see anything stating the original poster was in Canada. Half the other people in the thread, yes...

jcurrieirocz

yes my camaro is an Iroc with an LG4 305 carbed engine sold in Canada. How can I tell that my car has vacum advnce is that the vacum line coming from that round metal thing right under my distributer? Im still getting mixed ansewers on if I have a cc carb or not???

RB83L69

Here is a computer-controlled Q-Jet. Note the throttle position sensor over by the throttle linkage and the mixture control solenoid connection.

Apeiron

The metal thing is actually part of the distributor, it's the vacuum advance pot. Your carb is non-CC.

99Hawk120

Well, it is not computer controlled, no, but it sure is an interesting lil' carb. Do yourself a favor, and trace the wires coming off the grey solenoid at the front of the carb. Unless I'm mistaken, at least one of them should run to a switch in the water jacket--possibly on the thermostat housing.

jcurrieirocz

I'll cheack it out,,,,but as you can see from my first pic above,,,both of those connectors on my thermostat housing are broken off??