EGR check engine light
05-19-2014, 07:35 PM
#1
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Car: 1985 z28
Engine: 305
Transmission: 700r4
EGR check engine light
My air pump has been deleted by previous owner causing my check engine light to come on when cruising at highway speeds. I been looking around and most people say I need to get a chip burnt to keep the light from coming on. Anyone know of a place to get one for cheap or a cheaper fix?
05-19-2014, 08:34 PM
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Car: 1987 IROC Z28
Engine: 305 TPI
Transmission: TKO 600
Axle/Gears: 3.45 (G92 package)
Re: EGR check engine light
your air pump is not related to your EGR... but still needs to be zeroed out in a chip... i'm sure there's guys on this site that will do that for you, for a price of course
05-19-2014, 08:50 PM
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Car: 1985 z28
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Re: EGR check engine light
my check engine light comes on and it says EGR. My EGR is connected and assumed to be fine. My air pump is disconnected.
05-19-2014, 08:57 PM
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Car: 1987 IROC Z28
Engine: 305 TPI
Transmission: TKO 600
Axle/Gears: 3.45 (G92 package)
Re: EGR check engine light
so u grounded the aldl and what code did u get...
if your air system is removed and your chip isn't reprogrammed to reflect this change, it will throw a code. A.I.R system is different than your EGR
if your air system is removed and your chip isn't reprogrammed to reflect this change, it will throw a code. A.I.R system is different than your EGR
05-20-2014, 07:26 AM
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Car: 1987 IROC Z28
Engine: 305 TPI
Transmission: TKO 600
Axle/Gears: 3.45 (G92 package)
Re: EGR check engine light
couldn't the o2 sensor be expecting more oxygen in the exhaust stream and over compensate? obviously that wouldn't set off the EGR code... but thanks for the clarification
05-20-2014, 08:04 AM
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Car: 1985 z28
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Re: EGR check engine light
The only code that comes up is a code for what the scanner says is EGR I cant remember the number. Ill have to run it again
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05-20-2014, 08:58 PM
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Car: 1985 z28
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Re: EGR check engine light
So replace EGR then since air pump doesn't throw code? I just thought the two were connected.
05-20-2014, 09:11 PM
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Car: 82 Z28
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Re: EGR check engine light
No
Do the EGR diagnostics 1st.
read
http://www.chevythunder.com/egr_code_32.htm
Could well be a wiring or EGR temp sensor problem as much as or more likely than a EGR valve problem
Do the EGR diagnostics 1st.
read
http://www.chevythunder.com/egr_code_32.htm
Could well be a wiring or EGR temp sensor problem as much as or more likely than a EGR valve problem
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