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Service Engine Light Comes On Catyletic Convertor & EGR?

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Old Sep 13, 2005 | 12:54 PM
  #1  
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From: Blackstone Valley, Massachusetts
Car: 1986 Iroc Z28
Engine: 5.0 TPI
Transmission: 700-R4
Service Engine Light Comes On Catyletic Convertor & EGR?

I have a Red 1986 Iroc Z28 Camaro 305 TPI 700-R4. While i am driving down the road the service engine light will pop on and off briefly... It wont stay on for long periods of time.... a friend of mine who went to a tech school with me says it is the Catyletic Converter (clogged) or the EGR. I also checked the Smog pump filter and the Charcoal Filter for Emissions and there both dirty and i will replace today! what do you guys think? my camaro failed Emissions..... of course the girl who had it before me killed the poor car going 100 MPH into a guard rail... let me know what you guys/gals think... thanks
Brian

I installed a:
Brand New O2 Sensor
MAF Sensor
MAF Relay
K & N Air Filters

Exhuast looks new but i havent touched the exhuast at all

*I should be getting about 300-350 Miles on a full tank but its only about 275-290*

Last edited by RedIrocZ86; Sep 13, 2005 at 01:02 PM.
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Old Sep 13, 2005 | 01:59 PM
  #2  
IROCThe5.7L's Avatar
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Joined: Jul 2001
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From: Buffalo, NY
Car: 1988 IROC-Z
Engine: 427 SBC
Transmission: ProBuilt 700R4
Axle/Gears: Moser 12 Bolt / 3.73 TrueTrac
You should really pull the code first your computers throwing.
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Old Sep 13, 2005 | 03:50 PM
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RedIrocZ86's Avatar
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From: Blackstone Valley, Massachusetts
Car: 1986 Iroc Z28
Engine: 5.0 TPI
Transmission: 700-R4
its coming up O2 sensor, MAF Sensor

i didnt fail for Nox though...
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Old Sep 15, 2005 | 11:54 AM
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RedIrocZ86's Avatar
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From: Blackstone Valley, Massachusetts
Car: 1986 Iroc Z28
Engine: 5.0 TPI
Transmission: 700-R4
The service engine light pops on and off shortly after start up... i replaced

O2 Sensor Brand new
MAF Brand New
MAF Relay Brand New
K & N Air Filters are good
i replaced one Charcoal Canister filter for emissions
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Old Sep 15, 2005 | 11:56 AM
  #5  
RedIrocZ86's Avatar
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From: Blackstone Valley, Massachusetts
Car: 1986 Iroc Z28
Engine: 5.0 TPI
Transmission: 700-R4
some mechanics are saying its a clogged catyletic converter or its the egr? whats do you think? the exhaust that comes out doesnt smell at all really. like usually when a cat goes it smells like eggs

could it also be the fuel pressure regulator?

the codes that i kept bringing up are
code 34
code 36
i think

Last edited by RedIrocZ86; Sep 15, 2005 at 12:07 PM.
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Old Sep 17, 2005 | 04:35 PM
  #6  
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From: Blackstone Valley, Massachusetts
Car: 1986 Iroc Z28
Engine: 5.0 TPI
Transmission: 700-R4
when the tank gets below 1/4 it stalls... anyone got any ideas? and the service engine light takes atleast 20-25 mins to come on after the car has been running... i think its the catletic converter and the EGR
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Old Sep 18, 2005 | 11:18 AM
  #7  
RedIrocZ86's Avatar
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From: Blackstone Valley, Massachusetts
Car: 1986 Iroc Z28
Engine: 5.0 TPI
Transmission: 700-R4
i ripped out my spark plug and it snapped in half trying to take it out... it looks as though to much carbon over time destroyed the plugs... i replaced it and it seems to run better not by much but im sure it helped

this thursday i am getting plugs/wires/ fuel filter
double platinum
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Old Sep 19, 2005 | 09:15 AM
  #8  
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From: Elk Grove, CA
Car: 1988 Pontiac Trans-AM
Engine: TPI 350 (5.7L)
Transmission: 700R4
If the car runs ok until you get to a certain RPM. Then won't rev any higher, and slowly gets worse over time. Its most likly a clogged cat. Car did not throw any codes in my case..
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Old Sep 19, 2005 | 10:37 AM
  #9  
RedIrocZ86's Avatar
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From: Blackstone Valley, Massachusetts
Car: 1986 Iroc Z28
Engine: 5.0 TPI
Transmission: 700-R4
well im smelling a lot of unburnt gas from the engine so today im going to do a tune up
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Old Sep 21, 2005 | 03:29 AM
  #10  
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From: Blackstone Valley, Massachusetts
Car: 1986 Iroc Z28
Engine: 5.0 TPI
Transmission: 700-R4
i did the spark plugs.... they havent been changed since 1997 .... a/c delco's were in them. the egr in my car is very hard to move which its suppost to be easy for the vacuum to pull it so i am going to switch it when i can... my service engine light is constantly on now and my gas has increased because of the spark plugs but i can smell a lot of unburnt fuel which is why the position of the egr is stuck open.... and i failed emissions... i have to go back for it thursdays sept 22 2006
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Old Sep 27, 2005 | 11:52 AM
  #11  
RedIrocZ86's Avatar
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From: Blackstone Valley, Massachusetts
Car: 1986 Iroc Z28
Engine: 5.0 TPI
Transmission: 700-R4
i am getting 4 codes
13
23
44
54

I changed the o2 sensor, spark plugs, fuel filter, egr
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Old Oct 9, 2005 | 09:33 AM
  #12  
RedIrocZ86's Avatar
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From: Blackstone Valley, Massachusetts
Car: 1986 Iroc Z28
Engine: 5.0 TPI
Transmission: 700-R4
delete
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Old Jan 4, 2006 | 03:00 PM
  #13  
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From: New Jersey
Car: 1986 Camaro
Engine: 305 v8
Hey I have an 1986 camaro and I just had my check engine light come on for a few seconds and then shut off for a few n then come back on n immediatly go off....i was wondering if this might be a similar problem that your having? I just recently put a flowmaster catback on my car so that got me thinkin or mayb from my cat. shield rattling but thats been happening for a few months and the light has never come on....also some times when i go to start my car its kind of hard to start cranking it, so say I go and turn my car on I turn it all the way but seems like it doesn't make contact n I'll have to play w. it a little, could it be from my key chain? well thanks and hope to hear from some one!
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