i'm looking at an 83 Z-28 and i'm wondering what the differences are between it and an US 83 Z-28.

 

I am not positive of this, but the only difference I can think of for Canadian cars was the speedometer. Canadian exports were not the Z28 "E", which was for European export...

Am I right here??

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Jason E

'89 Camaro RS
Medium Grey Metallic
2.8, A4, T-tops, 91k miles

'97 Z28 w/30th Anniversary package
LT1, M6, t-tops
White with orange stripes, killer system, 42k miles

Speed Kills...Wanna live forever? Drive a Ford.
Long Live #3...

 

The emissions equipment is entirely different.

 

i heard they don't have a computer controlled carb, is this true? i'll go back and look at it tuesday, then i'll know for sure. it's got that gay dual needle speedo, that definately has to go.

 

That's true, it won't have a computer at all in fact.

 

sweeet

 

Hang on there. Most GM cars imported into Canada are EXACTLY the same as American 49 State cars, except the instrument cluster. Later, there was DRLs required for Canadian cars, but that was since 1991.

If you found a 1983 (or later) car without a computer, its been removed. I had a V6 GM 1982 car and it most certainly did have the compu-carb as were most of the other GM cars where compu-carbs were offered. Also, I have a few buddies with older early 80s cars and they also have a computer...though many were disabled.

Look for an ALDL...that's your clue.

 

I have an 83 firebird v6/carb/5spd (non-existant yet) and it definitly does not have a computer or ever did. It does have an aldl connector. I have had other cars hooked up to diagnostic equipment that didn't have a computer. And the mechanic told me that 82-84 canadian cars had different ignitions (in this case it was an olds omega 2.8l). I was using a u.s. manual to troubleshoot my canadian car and it lead me on a wild goose chase.

Some people set me straight about this under the v6 discussion: wheres my ecm?

 

Yes, MOST Canadian cars are the came as the American ones, but not all. Canadian LG4 thirdgens at least definitely do not have a computer. I've never actually seen a stock L69, so I don't know for sure if they have the feedback carb or not.

 

Blade, I find it odd that you had an 1982 X-body with a V6 and without a computer (are you sure it was never removed)? The reason is that I had a 1982 Pontiac Phoenix with the V6 and it did have a computer.

I suspect that many of the computers were removed because the compu-carbs were prone to needing replacing after awhile and they were expensive as hell. That is why so many of the computers were disabled and the carb replaced with a regular carb when the original went bad.

The early 80s was a "turning point" for GM and computers. Back in 1990 when BC went to emission testing, I talked to a rep from the company that was going to implement the AirCare facilities. AirCare discovered that many cars imported into Canada did not have all the emissions equipment etc installed that they were suppose to.

It turns out that sometimes US auto manufacturers sent Canada cars intended for other countries that had no emission standards and thus did not have all the 49 State equipment installed.

So it is highly possible that your car does not have a computer when it really should have. I just find it odd that a car does not have a computer installed when it also has an ALDL. The only time I have seen this, is when the computer was disabled/removed. This was on an 1984 Olds Cutlass with a 3.8 V6. On this car, the computer was definitely disabled: I even traced it to the wiring that was "hay wired".

 

I am the original owner of a 1984 HO L69 Canadian car (bought in Hamilton, Ontario) and it definitely has the computer controlled carb. It's all still in and working.

John

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1984 Z28
L69, CC Quadrajet
K&N Filter
3.73 Limited Slip
Centerforce DF Clutch
SLP 1 5/8 headers, high flow CAT, SS Exhaust
GM Motorsports Struts

 

Ok, so the L69s have the computer and the LG4s dont then.

 

If you'll allow a Firebird owner to jump in...

I have an 84 Recaro TA with the L69. It has the complete computer system with electric carb, etc. I do know that the L69s have Electric Spark Control while I don't think that the other 305s do. (In the parts catalogue the 1984 L69 "G" engines have a different part# for the distributor than the LG4 "H".) As for computers on the LG4 I'm not sure. The parts catalogue lists an Electronic Control Module for the "F" (LB9), "G", and "H" engines for 84-86.

While I'm at it, do any of you guys know the riddle to these RPO codes?
- AAA (various sources list it as: coating on glass, factory tint, standard equipment, 4-way manual seat adjusters
- WU1 (instrument panel lamp shut-off switch??)

 

I don't know if I'd trust the parts catalog information, most of that comes from the States.

 

Perhaps so, except I've never had occasion to find a discrepancy when I've taken a number from my parts catalogue (printed in Canada) and eyeballed a part in question or gone to a dealer with it . Descriptors such as Export or Fed. or Calif. etc. appear next to many parts listed throughout the catalogue so there is obviously an awareness of some differences. The computer code CJX listed on my build sheet corresponds correctly to the catalogue listings for both the ECM and the PROM and neither of these specify Canada Export only.

(Occasionally I do find a part # under 1985 rather than 1984. This might be due to the build date of my vehicle or maybe it was replaced by the previous owner.)

 

I thought you meant an aftermarket catalog, a GM catalog would be accurate of course. They built the things, they should know what's in them.

 

I use to have a 1984 Z28 with an LG4 3.23 and 4 wheel discs. It DID NOT have a computer or air pump. Some came with an aluminuim Q jet intake while mine was cast iron. If you look at the RPO codes there is a reference to Canadian emission, obviously different than the US.

Bill

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1992 Camaro Z28 L98
1997 K2500HD 6.5TD L65
1998 Yamaha WR400F
1988 Yamaha FZ750
1985 Yamaha RZ500
1999 Ski-doo MXZ600

 

Maybe we should call them NM5's instead of LG4's then.

 

Same here...except for the rear discs; and my 83 SC came with a V6 and it had no computer either....still doesn't

Pete

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<a href="http://www.hioutput.com/pete/garage/83SC/83sc.html" TARGET=_blank><IMG SRC="http://www.hioutput.com/pics/SC.gif" TITLE="Pete's 83 SC" border="1"></a>
My 83 SC...(originally V6) 210,100 mile LG4/5-speed from an 84 Z28, 3.42 one-tire-fryer, T-tops, PW, PH, boxed LCA's, Hedman Hedders and y-pipe, Dynomax cat-back, .420" lift cam, custom air induction .....best ET is <a href="http://www.hioutput.com/pete/MD-slip2.gif" title="My best timeslip...so far" TARGET=_blank>14.935@94.14</a></P>

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Apeiron and I just had supper a couple of weeks back and I showed him my 1986 Sports Coupe. We can both testify that my Camaro has not one single computer controlled part on it, period.

It is an LG4 with TH700R4 tranny. In fact, I just did some ignition work on it on Tuesday and it is entirely a vacuum advanced HEI distributor.

I feel for you Americans who are stuck with all that computer junk, and my less fortunate countrymen who also inherited that stuff.

Still, the junkyards are overflowing with good, pre-computer carbs and distributors