PURCHASED 87 IROC CAMARO 5.7. smog PUMP WAS NOT WORKING, FROZE UP. TOOK OFF THE PUMP ONLY, WILL THIS EFFECT THE WAY THE MOTOR RUNS.

 

Nope.

 

Ditto. I took mine off last year as I installed Dyno Don headers and stripped all the air piping. I added a pulley delete to maintain the look as well as the use of the same serpentine belt and routing.

Lots of information within, just search with a few key words.

 

Drove my 87 for months and my buddy noticed that, hey the previous owner put on a power pulley and disconnected the smog pump..

Drove around with no belt on the pump for 10 years and a hollow cat and even passed emissions.. no Service Engine Soon light or anything.. car ran great for its whole life..

 

Thank you for the feedback. I would like to take off all the smog stuff, will that be much trouble. Going to just register the car as a classic so I don't worry about all the inspection issues here.
Thank you again.

 

"Classic" tags in Texas are just another vanity plate. Wherever emissions or safety inspections are required in Texas, a car with "classic" tags must comply fully.

Antique tags in Texas are a different story. Very limited authorized use of Antique tags.

That said, the absence of the AIR pump, provided you run a suitable shorter belt, or you run the original belt with an idler pulley in place of the the original belt, will not cause any driveability issues. Probably won't show any difference on an emissions tailpipe probe either.

The things that will get you dinged most readily on VISUAL emissions inspections are headers with deleted catalytic converter, and obviously modified intake systems (high-rise manifold or turbos being red flags).

If you are running cast iron exhaust manifolds, and stock intake, chances of passing a visual inspection are good.

 

That's probably what I will do is tag it as an antique. It is over 30 years old now.
Just like to do a little maintenance sometimes, but with all the stuff under the hood its hard for an old timer like me to work on anything in the engine compartment anymore. Thanks for the response, like to learn from other car guys on these third gen Camaros.

 

Cool, i picked up my 92 in lufkin.
btw i took the pump off my car and capped it, but ran a little lean. When I burned a new chip with AIR disabled, it runs somewhat better.

 

I remember reading on the forum years ago the O2 sensor is calibrated for the AIR system and will read 100mv low to the ecu if you remove it. You can fix it by disabling the AIR system in the PROM like PRO did and adjusting the sensor, but it really doesn't seem to affect most cars much if you don't feel like doing it either.

 

If you have tpi I’m. It sure where in $32b mask the air pump vs cts is located .
But if you upgrade to $6e you can disable the air pump here.
https://www.thirdgen.org/forums/tpi/...ed-needed.html

 

Do you have to install a pulley delete? Or is it easier to re route like Pablo Morales? And to take the pump out do I have to mess with the AC compressor? It appears they are on the same bracket.

 

there are 2 different styles gm 10186167 with a large 6 grove pulley or gm 10129569 and use a 88986814 (97.24) belt with this pulley.

https://www.summitracing.com/parts/ADO-10186167
https://paceperformance.com/i-513416...-12497697.html

https://www.thirdgen.org/serpentine/

 

I went with 10186167 in both my truck and car and both are doing fine. Plus its not some dorman crap.
There should just be 2 bolts holding the pump in place, and then 2 bolts holding the pipe in place on the rear. Then I believe it should drop or slide out. I took mine out when the entire bracket was slid forward, and in order to do that, the front plate of the pump that has 3 bolts has to come off in order to reach one of the bracket bolts.

 

Icetiger87,


After vehicles reach 20 or 25 years old in Texas (I cant remember which) Inspections are safety items only: horn, lights, wipers, etc.. and it only cost $7.


My 88 has all the smog stuff in place. I recently purchased it from ST. Louis and had it shipped to Texas. I was fully expecting a thorough inspection and was blown away when the tech finished so quick. And FWIW, Crosby is in Harris county, which has very strict emission requirements. You should be fine.

 

All cars, even old ones get a visual inspection. Its in the rulebook somewhere. I watched them look for the EGR valve, smog, etc when they did my car. Maybe here:
https://www.dps.texas.gov/RSD/VI/safetyCNGTraining.pdf

But, someday we might have:
https://www.texastribune.org/2017/05...n-requirement/

 

You are correct. Page 140. I must have missed it when the tech did the visual.

 

This is incorrect. Air doesn't go to the manifold when in closed loop. In open loop, air is piped to the manifolds because the O2 sensor isn't in play.

On TBI the air is piped directly to the cat when O2 sensor is operational and up to temp in closed loop.

 

Why the 1mv adder if the o2 isn’t effected in cl ?

 

"There should be no air going to the exhaust ports while operating in the "Closed Loop" mode." Factory manual.

You'd have to ask them. Wouldn't make any sense to push atmosphere air past an active O2 sensor. The 02 readings would be all over the scale and you won't know what the injectors are doing.

 

Helm ? What year ?

https://www.thirdgen.org/forums/diy-...-pump-air.html

 

1992 Factory Service manual. Read about Cold mode (open loop) and Warm mode (close loop). Valve diverts to manifolds to heat up 02 sensor then once 02 sensor is hot, the air is diverted directly to the converter. On v6 engine air is completely by pass in Warm mode (closed loop) as there is no piped air to converter.

As for that old post, they need to spend some time with the factory service manual instead of "My guess..."

 

Interesting 91 fsm vin f and 8
6e3-c6-6
3 modes cold mode through the exhaust ports
warm mode through cat
divert mode path of least resistance.
ecm must detect cts for warm or cold mode but the $8d
hack is interesting with 100mv to compensate.

 

I gutted my smog pump and blocked lines after replacing it four times and did notice the engine idles differently afterwards. Seems to be running some lean. 89 L98 motor mostly stock with headers.