Ok guys my new project has olds 403 in her. She is a 77 firebird formula original California car . Now i cannot find a answer any ware so again I will ask you guys. Did my year require a smog pump. I have no emission label and from what I can tell there inst one on the car. I do have a cat and such on the exhaust.
Senior Member
Yes.
Quote:
She is a 77 firebird formula original California car
I'd like to see some pics! We may even let you bring it to a GTG, haha.She is a 77 firebird formula original California car
Member
According to my Mitchell Emission control Application guide you need for a '77 pontiac w/a 403(6.5l) pcv,acl,evap,oc,fr,bp/egr,spk, ais.
air injection is california only.
a 400(6.5l) would have pcv, acl, evap, oc, fr, bp/egr, spk, efe
no efe on firebird
hope this helps
air injection is california only.
a 400(6.5l) would have pcv, acl, evap, oc, fr, bp/egr, spk, efe
no efe on firebird
hope this helps
Quote:
air injection is california only.
a 400(6.5l) would have pcv, acl, evap, oc, fr, bp/egr, spk, efe
no efe on firebird
hope this helps
so I dont need a smog pump then right!!!!! I have no idea what those codes mean bud.Originally Posted by wddavis
According to my Mitchell Emission control Application guide you need for a '77 pontiac w/a 403(6.5l) pcv,acl,evap,oc,fr,bp/egr,spk, ais. air injection is california only.
a 400(6.5l) would have pcv, acl, evap, oc, fr, bp/egr, spk, efe
no efe on firebird
hope this helps
Supreme Member
my friends trans am 77 403 needed a smog pump!
Senior Member
1TUF92Z
Senior Member
close
- Join DateJun 2002
- LocationElk Grove, CA USA
- Posts:846
- iTrader Positive Feedback0
- iTrader Feedback Score(0)
- Car92Z28,91Z28,91Z281LE,95ZR-1,08Z06
- Engine406, 350, 305, 350, 427
- Transmissionauto, auto, 5-speed, 6spd, 6 spd
- Axle/Gearsall stock
- Likes:0
- Liked:0 Times in 0 Posts
Looking at WDDAVIS post, you need AIS. That is Air Injection System(smog pump).
Supreme Member
Heres my 2nd Gen 78 Trans Am currently in the process of being striped down and repainted.



