Emission Test Failed! - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 04-02-2006, 11:48 AM   #11
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Jul 2003
Location: Markham, Ontario, Canada
Posts: 239
Thanks: 0
Thanked 0 Times in 0 Posts
faisalmali is on a distinguished road
Default

Quote:
Originally Posted by GAMEOVER
Quote:
Originally Posted by faisalmali
Quote:
Originally Posted by GAMEOVER
replace the BCV
To confirm, you mean the BCS, right? Thanks.
the boost control valve is the black plunger with the arm on it which you stated sticks?

the boost control solenoid is the is right next to the black plunger with a vacuum line going to the plunger
Oh, OK, sorry. I heard that usually being referred to as waste gate actuator.

I'll try to do a search, but you probably don't have a part number off hand, would you?
faisalmali is offline   Reply With Quote
Old 04-02-2006, 10:43 PM   #12
Senior Member
True Car Nut
 
Join Date: Jul 2004
Location: Grand Rapids, Mi
Posts: 5,656
Thanks: 0
Thanked 0 Times in 0 Posts
Archon is on a distinguished road
Default

I believe that they have used the same part for years, and if so, the part number for a 2000 is: Actuator 12371988 $200.43.

At that cost, a junkyard part would look very tempting. Of course, the GMPartsDirect cost would be less.
Archon is offline   Reply With Quote
Old 04-03-2006, 08:18 AM   #13
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

The actuators 92-95 are actually different than 96+

The correct term is BCA for actuator.

Game..interested in selling him your spare?
BillBoost37 is offline   Reply With Quote
Old 04-03-2006, 09:07 AM   #14
Senior Member
True Car Nut
 
GAMEOVER's Avatar
 
Join Date: Aug 2003
Location: Racine Wi
Posts: 5,146
Thanks: 0
Thanked 0 Times in 0 Posts
GAMEOVER is on a distinguished road
Default

not really those things are hard to come by in my neck of the woods
GAMEOVER is offline   Reply With Quote
Old 04-03-2006, 09:15 AM   #15
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

Big junkyard run coming up...I'll be keeping the eyes open.
BillBoost37 is offline   Reply With Quote
Old 04-03-2006, 09:41 AM   #16
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

Posted on another Forum by me just a couple weeks ago. Maybe this will help:

Quote:
I just went out to verify a couple things on my own car to help out here, and wouldn't you know, both my cars reacted OPPOSITE each other. Some idiot forgot to hook the solonoid up on my 95 the last time he was taking resistance readings for some poor schmuck on the Bonneville Forum. Embarassed

Anyway, neat trick here:

Disconnect the top vacuum line (at idle) from the Boost Bypass Actuator. It should move from Bypass (extended) to Boost (retracted). If it does, it'* doing what you're telling it to do. Usually means that the solonoid is bad.

Another test is to disconnect (at idle) the electrical connector for the Solonoid. The actuator should also move. Same result. If the Actuator moves it'* full travel when you 'trick' it, the solonoid (or wiring or PCM command) is suspect.

However, if the actuator doesn't move smoothly and quickly to it'* fullest extent, get out some carb cleaner and spray it on the actuator, particularly the crimp (not crimpton) that holds the two halves of the body together (at idle). Does your idle change? How about the ends of the vacuum fittings to the lower portion of the actuator body? If the actuator isn't moving when and how it'* commanded quickly and fully, you either have a bad actuator (typically a body vac leak) or a vacuum leak. If it'* intermittent, the leak is dictated by engine temp.
_________________
The BCA won't be an issue unless they actually had the car in a drive gear for the test.
willwren is offline   Reply With Quote
Old 04-03-2006, 03:46 PM   #17
Senior Member
Certified GM nut
 
Join Date: Feb 2004
Location: CT
Posts: 2,099
Thanks: 0
Thanked 1 Time in 1 Post
SSEBONNE4EVA is on a distinguished road
Default emission

clean all the throttle body sensors and the 'EGR as stated. Have you checked the PCV and other common items. Also check TPS voltage, take the 02 out and look at the tip.
Should be chalky whitish. If not replace it.
SSEBONNE4EVA is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Passed Emission test with Flying Colors! azu General GM Chat 1 11-24-2007 11:20 PM
emission inspection test result report aukc General GM Chat 7 03-07-2005 08:30 AM
HELP WITH EGR !!! failed emission Drifter420 1992-1999 30 04-21-2004 12:23 PM
emission test with S/Cless Drifter420 1992-1999 10 03-24-2004 04:15 PM
bonnie failed the nox in emission test rrrddgy 1992-1999 4 03-01-2004 02:21 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 08:59 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.