stangStomper83

i want to get rid of all that air injection crap to clean up the engine bay, will this cause a check engine light

Brisk

iTrader: (25)

not sure... but so far mine has not

GuitarJunki17

iTrader: (1)

Not on my 1990 Iroc. Smog pump and air tubes are gone, as well as other miscellanious crap.

3.8TransAM

No CE light will activate.

However for proper operation of the rest of the systems, you should have a custom chip made to completely disable the AIR settings as they do affect the 02 sensor when active. Its an offset

later
Jeremy

Kevin91Z

iTrader: (1)

The ECM only monitors the EGR to make sure its working. That said, removing your emissions equipment from a street car is a federal offense, regardless of your state's emissions rules. If caught, you can be punished by a fine, jail time, or both.

johnny89345

you can remove everything but the egr i would leave that to prevent any problems

brians88gta

pull all that junk out and unhook the egr valve ive deleted the whole tpi system no codes on stock ecu

gurkgurkgurk

kevin we keep on doing this little dance, illegal versus street legal. lets just agree to dissagree.

yes, its illegal to tamper with emissions stuff yadda yadda

but


yes, it gets in the way. yes you can remove all that stuff and still pass smog, yes, itll clean up the engine bay.

but the decision is up to you.

and no it wont set off a CEL

johnny89345

i have a ? how many block off plates do i need when i remove the rest of my emmisions. i know 1 for the egr and wheres the other also where can i get these plates. also what do i do about the vacume line that goes to the egr

afremont

It certainly won't pass a visual inspection anywhere legitimate, so I'm not sure what you mean by that.

gurkgurkgurk

sorry, i meant, it could still pass smog where visual inspections arent done or enforced very well

brians88gta

in some states they only look 4 a catalitic converter and do tail pipe emisions and check engine light for 95 and after

rgarcia63

The EGR doesn't use engine vacuum, it source is throttle body ported vacuum nothing else should be using that port's vacuum.

johnny89345

so what do i do just block that vacume line that goes from the egr to the plenum

Kevin91Z

iTrader: (1)

Keep the stuff on your car. Eventually Obama is going to make every state do emissions testing as he tries to create a happy green USA for us all to live in. If you dont have the parts its going to cost you a LOT of money to buy them again.

Also, in the meantime, every time you remove your emissions devices, you are telling the smog-***** that the current laws are not tough enough to stop you, so now they have to write tougher laws that affect the rest of us. Thanks a lot!

We here in SoCal have proven that you can have a fast TPI car and still pass the emissions test. You dont have to remove anything because its not going to give you much gain, if anything at all. I removed my a/c and I can access both sides of my engine very easily, even with the AIR lines.

Justin89Formy

iTrader: (26)

apparently they put something in the water in California to brainwash people

afremont

Kevin91Z is right. Emissions testing is not going away, eventually it will be in your county no matter where you live. I'm proud that my 20 year old car runs cleaner and gets better mileage than a brand new pickup.

Justin89Formy

iTrader: (26)

im certain that after a certain age there will be exceptions to the laws...

1quik4

Here in Ontario, anything '88 and newer must have an emissions test every other year....

brians88gta

in tennessee anything after 74 has to go thru emissions accept 1 tons and diesiels

Seanmay1

smog pump, air tubes, and cat are gone on mine and no problems from that. Still have the EGR hooked up though

hassgrant

I removed my smog pump this weekend as it froze up on me. I left the metal tubing that goes into the manifolds but capped them (x3) with 1/2 iron pipe caps.

My check engine light came on.

Any suggestions?

Do you have to do anything with the two plugs that were unplugged?

aliceempire

iTrader: (14)

Find out what the code is and start there. The Airpump won't be the direct cause of the light.

Vader

Good advice. The speed-density system from '91 should not be looking for the electrical load (35-50Ω) from the port or divert solenoids as a later ECM/PCM would. Don't be surprised if the O² sensor is reporting lean, potentially from a leak in the caps you installed on the air injection fittings. The threads are not NPT, so a standard pipe cap may not seal very well.

BizJetTech

iTrader: (3)

Here is what you need to plug holes in manifolds.......

or this.....

https://www.rockauto.com/en/moreinfo...854912&jsn=255

mikeceli

iTrader: (2)

AND, in Cali, they will release a kidnapper/rapist/murderer, to make room for YOU!

BizJetTech

iTrader: (3)

Looks good, I like those, do you have a mfgr name and # or P/N ??