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05-24-2012, 07:46 PM
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#1
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Join Date: May 2010
Location: Brick, NJ
Posts: 1,868
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Another failed inspection thread
So I failed inspection this morning. I haven't had a chance to look at anything yet so keep that in mind. I am going to start with checking the plugs, wires, cap, rotor, the timing, OHMing out the CTS and going from there. Here are the results from this monring.
Test: Idle, Status: Fail
Reading - Standard
HC ppm 1846 - 220
CO% 0.58 - 1.20
CO2% 10.1
O2% 6.0
Test: High Idle, Status: Pass
Reading - Standard
HC ppm 147 - 220
CO% 0.12 - 1.20
CO2% 12.2
O2% 3.3
Needless to say GTA = Fail at the moment
Suggestions are welcome
__________________
Formerly known as blk95formula
86t/a_ram_air on TGO
2018 Silverado 1500
Last edited by greenformula92; 05-24-2012 at 07:48 PM.
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05-24-2012, 07:53 PM
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#2
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Join Date: Dec 2011
Location: 07747
Posts: 521
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Quote:
Originally Posted by greenformula92
So I failed inspection this morning. I haven't had a chance to look at anything yet so keep that in mind. I am going to start with checking the plugs, wires, cap, rotor, the timing, OHMing out the CTS and going from there. Here are the results from this monring.
Test: Idle, Status: Fail
Reading - Standard
HC ppm 1846 - 220
CO% 0.58 - 1.20
CO2% 10.1
O2% 6.0
Test: High Idle, Status: Pass
Reading - Standard
HC ppm 147 - 220
CO% 0.12 - 1.20
CO2% 12.2
O2% 3.3
Needless to say GTA = Fail at the moment
Suggestions are welcome
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find a place that will pass you???
__________________
 SHADOW
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05-24-2012, 07:58 PM
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#3
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Join Date: May 2010
Location: Brick, NJ
Posts: 1,868
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or I can fix the problem
__________________
Formerly known as blk95formula
86t/a_ram_air on TGO
2018 Silverado 1500
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05-24-2012, 07:59 PM
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#4
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Join Date: Dec 2011
Location: 07747
Posts: 521
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Quote:
Originally Posted by greenformula92
or I can fix the problem
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yea true.. just saying i have this guy who just passes me ....
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SHADOW
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05-24-2012, 08:00 PM
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#5
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Join Date: May 2010
Location: Brick, NJ
Posts: 1,868
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yeah not a good idea since i have to get on a federal installation every day and they actually look at that stuff
__________________
Formerly known as blk95formula
86t/a_ram_air on TGO
2018 Silverado 1500
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05-24-2012, 08:03 PM
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#6
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Join Date: Dec 2011
Location: 07747
Posts: 521
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Quote:
Originally Posted by greenformula92
yeah not a good idea since i have to get on a federal installation every day and they actually look at that stuff
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no its all legal you get the sticker and the test done paper read out... he just passes me ... but its all legal
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05-24-2012, 08:07 PM
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#7
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Join Date: May 2010
Location: Brick, NJ
Posts: 1,868
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Im good, I'll just fix it
__________________
Formerly known as blk95formula
86t/a_ram_air on TGO
2018 Silverado 1500
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05-24-2012, 08:27 PM
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#8
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Join Date: Feb 2005
Location: west orange nj
Posts: 2,415
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change the icm thats why my truck didnt pass inspection
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05-25-2012, 07:50 AM
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#9
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Join Date: May 2010
Location: Brick, NJ
Posts: 1,868
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I am goinna start with checking the plugs and stuff and work my way back to the distributor. The ICM did cross my mind. Something has to be a miss for such high numbers
__________________
Formerly known as blk95formula
86t/a_ram_air on TGO
2018 Silverado 1500
Last edited by greenformula92; 05-25-2012 at 07:51 AM.
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05-25-2012, 07:59 AM
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#10
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Ayatollah of Rock N Rolla / Admin
Join Date: Mar 2006
Location: Parts Unknown
Posts: 12,573
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Start with the basics. Verify the condition of the ignition system.
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05-25-2012, 09:43 AM
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#11
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Admin.
Join Date: Aug 2005
Location: Hamilton, NJ
Posts: 20,149
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what is the idle rpm?
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Vent Windows Forever!
The looser the waistband, the deeper the quicksand. Or so I have read.
Feather-light suspension, Konis just couldn't hold. I'm so glad I took a look inside your showroom doors.
Hey everybody, it's good to have you on the Baba-too-da-ba-too-ba-ba-buh-doo-ga-ga-bop-a-dop
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05-25-2012, 10:04 AM
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#12
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Join Date: Oct 2009
Location: West Milford
Posts: 1,026
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I have to go next week....'92 bird here....cross your wings, it may get bumpy.
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05-25-2012, 11:55 AM
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#13
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Join Date: May 2010
Location: Brick, NJ
Posts: 1,868
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Quote:
Originally Posted by BonzoHansen
what is the idle rpm?
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500 in drive
__________________
Formerly known as blk95formula
86t/a_ram_air on TGO
2018 Silverado 1500
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05-25-2012, 03:58 PM
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#14
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Power Member
Join Date: Sep 2008
Location: Hackettstown, NJ
Posts: 1,632
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Possible that the idle is too low?
The HC at low idle might be caused by a missfire, or possibly a leaky injector.
__________________
1998 Z-28 - SLP lid - Ported TB - LS6 Intake - Dynatech SS headers/Catted Y - Magnaflow Exh - 3.42 - Yank SS3600 - UMI weld-in subframe connectors, Adj LCA, Adj PHB, Q1A TA - Bolt-in Relocation Brackets - Strano springs - Koni shocks - 17" C6Z06 wheels - 326HP/335ft-lbs - 12.35 @ 110.41
Quote:
Originally Posted by Blackbirdws6
I can appreciate a dream but this person needed some real friends.
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05-25-2012, 05:45 PM
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#15
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Join Date: May 2010
Location: Brick, NJ
Posts: 1,868
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Car had injectors replaced by the PO who I know very well. I am going to reset minimum idle when I check everything else. Just for peace of mind
__________________
Formerly known as blk95formula
86t/a_ram_air on TGO
2018 Silverado 1500
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05-26-2012, 01:46 PM
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#16
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Join Date: May 2010
Location: Brick, NJ
Posts: 1,868
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swapped out the plugs and CTS today. gonna go for a long ride to let the ECM re calibrate and then go back for a re-test and see if its any better
__________________
Formerly known as blk95formula
86t/a_ram_air on TGO
2018 Silverado 1500
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05-27-2012, 06:43 PM
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#17
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Join Date: Jun 2011
Location: Voorhees Nj
Posts: 217
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My results looked similar on my formula..bearings on my crank are bad. That idle sounds way low..
__________________
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1989 Formula
1986 T/A
Attempting to race old junk since 2009 
~Jamie
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05-28-2012, 12:24 AM
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#18
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Meet Coordinator
Join Date: Jan 2008
Location: brick/pt. pleasant beach
Posts: 19,341
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I'm sorry but is one to infer that "bad" crank bearings would result in high hydrocarbon readings during an idle test? Just want to clear things up.
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05-28-2012, 08:01 AM
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#19
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Power Member
Join Date: Sep 2008
Location: Hackettstown, NJ
Posts: 1,632
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Uh, no.
__________________
1998 Z-28 - SLP lid - Ported TB - LS6 Intake - Dynatech SS headers/Catted Y - Magnaflow Exh - 3.42 - Yank SS3600 - UMI weld-in subframe connectors, Adj LCA, Adj PHB, Q1A TA - Bolt-in Relocation Brackets - Strano springs - Koni shocks - 17" C6Z06 wheels - 326HP/335ft-lbs - 12.35 @ 110.41
Quote:
Originally Posted by Blackbirdws6
I can appreciate a dream but this person needed some real friends.
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05-28-2012, 09:52 AM
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#20
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Join Date: May 2010
Location: Brick, NJ
Posts: 1,868
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Quote:
Originally Posted by Phoenixfire1989
My results looked similar on my formula..bearings on my crank are bad. That idle sounds way low..
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Idle is not way low. minimum idle on a auto TPI car is 450 in drive. stick cars have a higher idle speed to begin with. And your carbed car has the idle speed up because its a different motor entirely
__________________
Formerly known as blk95formula
86t/a_ram_air on TGO
2018 Silverado 1500
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05-31-2012, 10:52 AM
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#21
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Join Date: May 2010
Location: Brick, NJ
Posts: 1,868
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Failed again. HC ppm is down to 424 on low idle. Going to change the wires and check timing and bring it back again. Didn't change the wires initially because I inspected them and they looked good but not I'm going to change them hopefully on my lunch break if I can squeeze my paw down enough to grab the plug wires from on top instead of underneath....its a long shot I know
__________________
Formerly known as blk95formula
86t/a_ram_air on TGO
2018 Silverado 1500
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05-31-2012, 01:26 PM
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#22
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Power Member
Join Date: Sep 2008
Location: Hackettstown, NJ
Posts: 1,632
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It's possible that throttle body is dirty or the plate is closed too far. Check that out. If it's dirty or closed too far the PCM will add timing to compensate once it maxes out the IAC, which will skew your HC readings.
Edit: Also check to see if your IAC is clogged/dirty.
__________________
1998 Z-28 - SLP lid - Ported TB - LS6 Intake - Dynatech SS headers/Catted Y - Magnaflow Exh - 3.42 - Yank SS3600 - UMI weld-in subframe connectors, Adj LCA, Adj PHB, Q1A TA - Bolt-in Relocation Brackets - Strano springs - Koni shocks - 17" C6Z06 wheels - 326HP/335ft-lbs - 12.35 @ 110.41
Quote:
Originally Posted by Blackbirdws6
I can appreciate a dream but this person needed some real friends.
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Last edited by The_Bishop; 05-31-2012 at 01:29 PM.
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05-31-2012, 10:17 PM
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#23
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Join Date: May 2010
Location: Brick, NJ
Posts: 1,868
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I adjusted minimum idle up 100 RPM and changed the wires tonight. gonna go back in the morning, if it doesn't pass this time I am going to have to check and adjust timing
__________________
Formerly known as blk95formula
86t/a_ram_air on TGO
2018 Silverado 1500
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06-01-2012, 08:14 AM
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#24
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Admin.
Join Date: Aug 2005
Location: Hamilton, NJ
Posts: 20,149
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make sure your timing is at factory spec. that will impact low rpm emissions.
__________________
Vent Windows Forever!
The looser the waistband, the deeper the quicksand. Or so I have read.
Feather-light suspension, Konis just couldn't hold. I'm so glad I took a look inside your showroom doors.
Hey everybody, it's good to have you on the Baba-too-da-ba-too-ba-ba-buh-doo-ga-ga-bop-a-dop
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06-01-2012, 01:33 PM
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#25
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Join Date: Jun 2007
Location: Arm pit of the world... NJ
Posts: 2,673
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When was the oil last changed?
__________________
John
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