Emission Control System - Help Decipher Please
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Post Fiend
Joined: Nov 2007
Posts: 9,549
Likes: 14
From: Payson, AZ
Emission Control System - Help Decipher Please
This is the label on my passenger side valve cover. Next to Emission Control System (third box below 1999 Model) it reads ECM, TC, DI, OC, CAC. I can make an educated guess at some, but I'd like to be sure. Does anyone know what they actually stand for?
My truck came with a catalytic converter but I can't find any reference to it under the hood that actually says "catalyst" or "catalytic".
Any help is greatly appreciated.
My truck came with a catalytic converter but I can't find any reference to it under the hood that actually says "catalyst" or "catalytic".
Any help is greatly appreciated.
Post Fiend
Joined: Sep 2003
Posts: 6,096
Likes: 27
From: Mesa AZ
Robin,
I found this online a few moments ago....
ECM = electronic control module
TC = Turbocharger
DI = Direct Injection although normally DFI. for a gas powered vehicle DI is Distributor Ignition
CAC = Charge Air Cooler (intercooler)
EGR = exhaust gas recirculation
OC = Oxydizing Catalyst (Catalytic converter that controls CO and HC does not control NOX)
This came off a 6.0 sticker (EGR)
"OC" is your baby.
Thanks for the pic.
So, this explains why the 'technician' at the emission testing facility was trying to view my valve cover sticker. He must have been looking for the "OC". Too bad that part of the sticker is behind the IC pipe...
I think I have a photo somewhere of my sticker....I'll check and post back if I find it.
I found this online a few moments ago....
ECM = electronic control module
TC = Turbocharger
DI = Direct Injection although normally DFI. for a gas powered vehicle DI is Distributor Ignition
CAC = Charge Air Cooler (intercooler)
EGR = exhaust gas recirculation
OC = Oxydizing Catalyst (Catalytic converter that controls CO and HC does not control NOX)
This came off a 6.0 sticker (EGR)
"OC" is your baby.
Thanks for the pic.
So, this explains why the 'technician' at the emission testing facility was trying to view my valve cover sticker. He must have been looking for the "OC". Too bad that part of the sticker is behind the IC pipe...
I think I have a photo somewhere of my sticker....I'll check and post back if I find it.
Postmaster
Joined: Dec 2008
Posts: 3,340
Likes: 2
Looks like Greg has you covered. Found this list of acronyms: Glossary of Automotive Acronyms .: Articles
Post Fiend
Joined: Sep 2003
Posts: 6,096
Likes: 27
From: Mesa AZ
Looks like Greg has you covered. Found this list of acronyms: Glossary of Automotive Acronyms .: Articles
VPWR cracks me up. I bet there is a funny story there somewhere. The base words probably confused the heck out of everybody so they had to simplify the explanation.
Thread Starter
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Post Fiend
Joined: Nov 2007
Posts: 9,549
Likes: 14
From: Payson, AZ
Robin,
I found this online a few moments ago....
ECM = electronic control module
TC = Turbocharger
DI = Direct Injection although normally DFI. for a gas powered vehicle DI is Distributor Ignition
CAC = Charge Air Cooler (intercooler)
EGR = exhaust gas recirculation
OC = Oxydizing Catalyst (Catalytic converter that controls CO and HC does not control NOX)
This came off a 6.0 sticker (EGR)
"OC" is your baby.
Thanks for the pic.
So, this explains why the 'technician' at the emission testing facility was trying to view my valve cover sticker. He must have been looking for the "OC". Too bad that part of the sticker is behind the IC pipe...
I think I have a photo somewhere of my sticker....I'll check and post back if I find it.
I found this online a few moments ago....
ECM = electronic control module
TC = Turbocharger
DI = Direct Injection although normally DFI. for a gas powered vehicle DI is Distributor Ignition
CAC = Charge Air Cooler (intercooler)
EGR = exhaust gas recirculation
OC = Oxydizing Catalyst (Catalytic converter that controls CO and HC does not control NOX)
This came off a 6.0 sticker (EGR)
"OC" is your baby.
Thanks for the pic.
So, this explains why the 'technician' at the emission testing facility was trying to view my valve cover sticker. He must have been looking for the "OC". Too bad that part of the sticker is behind the IC pipe...
I think I have a photo somewhere of my sticker....I'll check and post back if I find it.
I had to take the IC pipe off to take the pic.
I sent you an email just before starting this thread.
Looks like Greg has you covered. Found this list of acronyms: Glossary of Automotive Acronyms .: Articles
Post Fiend
Joined: Sep 2003
Posts: 6,096
Likes: 27
From: Mesa AZ
Here is my valve cover sticker. "OC" is not listed.
I wonder if there is any correlation with the color of the sticker. Your "OC" sticker is black where my 'non-OC' sticker is pinkish-red. I think my neighbor's valve cover is green but his truck is a 2000 model, non-cat.
Anyone else out there with any of these colors? If so, do you have a catalyst or not?
I wonder if there is any correlation with the color of the sticker. Your "OC" sticker is black where my 'non-OC' sticker is pinkish-red. I think my neighbor's valve cover is green but his truck is a 2000 model, non-cat.
Anyone else out there with any of these colors? If so, do you have a catalyst or not?
Thread Starter
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Post Fiend
Joined: Nov 2007
Posts: 9,549
Likes: 14
From: Payson, AZ
Good questions. Maybe there is a label color code.
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Laughing Gas
Joined: Feb 2004
Posts: 822
Likes: 9
From: Leander Texas
Can't seem to get a pic in the dark that's not blurry. My '00 is green no cat, almost positive the '01 is orange no cat. Only diff between two besides year is the '01 is automatic.
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Post Fiend
Joined: Sep 2003
Posts: 6,096
Likes: 27
From: Mesa AZ
Thanks Shane,
So far is looks like the different colors may determine the year?
Black=Early 99
Pink/Red=late 99
Green=2000
Orange=2001
???=2002
???=2003
Would still like to see the another photo of a cat sticker tho...
So far is looks like the different colors may determine the year?
Black=Early 99
Pink/Red=late 99
Green=2000
Orange=2001
???=2002
???=2003
Would still like to see the another photo of a cat sticker tho...
Post Fiend
Joined: Sep 2003
Posts: 6,096
Likes: 27
From: Mesa AZ
Side note:
Robin and I each have a sticker that says 250 BHP. What does this stand for? Brake Horse Power? If so, what does that mean exactly? In Europe, doesn't Brake Horse Power mean the HP at the wheels? (vs at the crank).
Just curious......
Robin and I each have a sticker that says 250 BHP. What does this stand for? Brake Horse Power? If so, what does that mean exactly? In Europe, doesn't Brake Horse Power mean the HP at the wheels? (vs at the crank).
Just curious......
Thread Starter
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Post Fiend
Joined: Nov 2007
Posts: 9,549
Likes: 14
From: Payson, AZ
BHP is the same as Flywheel Horsepower.
From About.com: LINK
BRAKE HORSEPOWER (bhp) <!-- End of Word --><TABLE cellSpacing=0 cellPadding=0 width="100%" border=0><TBODY><TR><TD width=1 bgColor=#cc0000 colSpan=2 height=1 alt="" border="0" src="http://z.about.com" TD <></TD></TR></TBODY></TABLE>
<!-- BEGIN DEFINITION CONTENT -->Definition: The measure of an engine's horsepower without the loss in power caused by the gearbox, generator, differential,
water pump and other auxiliaries. The actual horsepower delivered to the driving wheels is less.
From About.com: LINK
BRAKE HORSEPOWER (bhp) <!-- End of Word --><TABLE cellSpacing=0 cellPadding=0 width="100%" border=0><TBODY><TR><TD width=1 bgColor=#cc0000 colSpan=2 height=1 alt="" border="0" src="http://z.about.com" TD <></TD></TR></TBODY></TABLE>
<!-- BEGIN DEFINITION CONTENT -->Definition: The measure of an engine's horsepower without the loss in power caused by the gearbox, generator, differential,
water pump and other auxiliaries. The actual horsepower delivered to the driving wheels is less.
Post Fiend
Joined: Sep 2003
Posts: 6,096
Likes: 27
From: Mesa AZ
BHP is the same as Flywheel Horsepower.
From About.com: LINK
BRAKE HORSEPOWER (bhp) <!-- End of Word --><TABLE cellSpacing=0 cellPadding=0 width="100%" border=0><TBODY><TR><TD width=1 bgColor=#cc0000 colSpan=2 height=1 alt="" border="0" src="http://z.about.com" TD <></TD></TR></TBODY></TABLE>
<!-- BEGIN DEFINITION CONTENT -->Definition: The measure of an engine's horsepower without the loss in power caused by the gearbox, generator, differential,
water pump and other auxiliaries. The actual horsepower delivered to the driving wheels is less.
From About.com: LINK
BRAKE HORSEPOWER (bhp) <!-- End of Word --><TABLE cellSpacing=0 cellPadding=0 width="100%" border=0><TBODY><TR><TD width=1 bgColor=#cc0000 colSpan=2 height=1 alt="" border="0" src="http://z.about.com" TD <></TD></TR></TBODY></TABLE>
<!-- BEGIN DEFINITION CONTENT -->Definition: The measure of an engine's horsepower without the loss in power caused by the gearbox, generator, differential,
water pump and other auxiliaries. The actual horsepower delivered to the driving wheels is less.
Hotshot
Joined: Jan 2008
Posts: 13,144
Likes: 11
From: Rochdale MA
My 01 is an auto with no cat and orange too.