Call all emissions experts! - equipment compatibility question

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I’m CA - trying to smog … like everyone else…

I have a late model 76 that has a 77 sticker on inner door USEPA (FED) non-catalyst. My PO tore every bit of emission equipment out and changed carb to fit what he did…

Question is this:
Compatibility wise
I need to smog. *if I purchase an entire 1978 emissions system along with matching carb - can I make that work on my rig??

considering it’s the entire system I would just be integrating…
I don’t want to start purchasing if it ain’t gunna work.

thanks for any info…I’m willing to pay to get my car on the ride so spare me the “move to a different state” comments 😉
 

Downey

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Might possibly be cheaper to install a smog legal GM V6 or V8, plus it would work better, more power, better milage- - -just saying.
 

Pighead

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I think you should share some of these questions with your local smog test referees, perhaps get a printed copy of requirements. Working with CARB could help prevent expensive mistakes.
 

Engineer8000

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Wiring between the emissions computer and engine bay and the engine bay wiring will be different based on a quick look at the schematics. The computers are different and the computer plugs are different. It probably could be made to work, I can't say if it would pass smog inspection. Do you have to have the California specific equipment if the truck wasn't originally a California truck?
 
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If it’s a 76/77 that had smog. It’s actually pretty easily reversible. I had to do it myself. granted they left the carb, just caped it. Just find an emissions diagram for your year, a desmog diagram, and some pictures. There are plenty of people that desmog there cruisers. I’m sure they are up on the wanted adds, or you could put up a want ad. You can do it. I’m here if you have any year specific questions.

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Holley sniper fuel injection with the 2 barrel setup? Self learning and I think there’s a company that sells the whole package deal with distributor and everything you need. For a little extra cheese they sell the adapter to use the original air cleaner.
 

db3

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i don’t know the answer to that - that’s why I’m trying to get it into Georg and get some solid answers about how to go about this.
Georg has been using the Smog Station in Dublin to do his smog work. Give Troy a call at 925-828-9119. I did the same job 25 years ago on a basket case 76, but it was a lot easier to find parts back then. The 76/77 system is fairly simple, so I'd stay with it. The 78 system is different and parts not interchangeable, so you would need everything, including plugs and wiring harness. I still have the 76 Toyota Emissions manual I used to reconstruct the system.
 
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Georg has been using the Smog Station in Dublin to do his smog work. Give Troy a call at 925-828-9119. I did the same job 25 years ago on a basket case 76, but it was a lot easier to find parts back then. The 76/77 system is fairly simple, so I'd stay with it. The 78 system is different and parts not interchangeable, so you would need everything, including plugs and wiring harness. I still have the 76 Toyota Emissions manual I used to reconstruct the system.
Troy has a couple of 60 series that are basket cases (owner bought on BaT without inspections) he is cleaning up. I don't even know if basket case is the right word for one of them.
 

ToyotaMatt

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I’m CA - trying to smog … like everyone else…

I have a late model 76 that has a 77 sticker on inner door USEPA (FED) non-catalyst. My PO tore every bit of emission equipment out and changed carb to fit what he did…

Question is this:
Compatibility wise
I need to smog. *if I purchase an entire 1978 emissions system along with matching carb - can I make that work on my rig??

considering it’s the entire system I would just be integrating…
I don’t want to start purchasing if it ain’t gunna work.

thanks for any info…I’m willing to pay to get my car on the ride so spare me the “move to a different state” comments 😉


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avicenna110

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Hey I’m also in NorCal with a ‘77 going through the same thing as you. Where in the Bay Area are you?

mine is a Cali spec and was missing most of the emission stuff, but I was able to find most if not all parts. Is yours also a Cali spec? We should compare notes if you’re close by. From the parts manual I remember some parts being compatible from 78 to 77 (can be easily checked) and you can probably find the non-matching ones easier after than just sourcing everything separately.
 
Joined
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Hey I’m also in NorCal with a ‘77 going through the same thing as you. Where in the Bay Area are you?

mine is a Cali spec and was missing most of the emission stuff, but I was able to find most if not all parts. Is yours also a Cali spec? We should compare notes if you’re close by. From the parts manual I remember some parts being compatible from 78 to 77 (can be easily checked) and you can probably find the non-matching ones easier after than just sourcing everything separately.

Ya after some serious digging I’ve found out through ID #’s mine is a Canadian import late model 8/76-something/77 ; so they slapped a 77 sticker on the inner door USEPA (federal) that also says Non-catalyst which georg’s smog guy told me would help me.

I’m in San Mateo. Right over the 92
 

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