Identify this part

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May 14, 2014 | 04:28 PM

Jcase350

Thread Starter

Junior Member

Joined: Mar 2009

Posts: 97

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From: OKC Area

Car: 90 Camaro Iroc-z

Engine: 350 TPI

Transmission: 700R4

Axle/Gears: 3.23

Identify this part

I'm working on a 90 camaro Iroc-z with a 350. I'm trying to track down the source of an idle problem. Can u identify this part? I've checked all the routine stuff...now I'm checking all the vacuum lines

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May 14, 2014 | 06:00 PM

vetteoz

Supreme Member

iTrader: (13)

Joined: Apr 2005

Posts: 7,736

Likes: 14

From: Not in Kansas anymore

Car: 82 Z28

Engine: 383 SP EFI/ 4150 TB

Transmission: T400

Axle/Gears: QP 9" 3.73

Re: Identify this part

EGR Vacuum Solenoid

May 14, 2014 | 07:19 PM

Jcase350

Thread Starter

Junior Member

Joined: Mar 2009

Posts: 97

Likes: 0

From: OKC Area

Car: 90 Camaro Iroc-z

Engine: 350 TPI

Transmission: 700R4

Axle/Gears: 3.23

Re: Identify this part

What exactly does it do and how can you tell if it needs to be replaced

May 14, 2014 | 07:34 PM

vetteoz

Supreme Member

iTrader: (13)

Joined: Apr 2005

Posts: 7,736

Likes: 14

From: Not in Kansas anymore

Car: 82 Z28

Engine: 383 SP EFI/ 4150 TB

Transmission: T400

Axle/Gears: QP 9" 3.73

Re: Identify this part

Quote:

Originally Posted by Jcase350

What exactly does it do and how can you tell if it needs to be replaced

Operates the EGR solenoid

You will get a engine error code showing if it is not working

See link for typical plumbing arrangement

https://www.thirdgen.org/forums/post...40-post17.html