pulled these codes help

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Dec 29, 2013 | 01:34 PM

pastamike

Thread Starter

Instructor

Joined: May 2010

Posts: 243

Likes: 0

pulled these codes help

p0100
p0400
p1641
p1661

one code is maf, and one is egr, do i need to just replace them both or can i test them some how first..

thanks pastamike..

Dec 29, 2013 | 06:46 PM

vetteoz

Safety Car

Joined: Jan 2004

Posts: 3,556

Likes: 13

Quote:

Originally Posted by pastamike

do i need to just replace them both or can i test them some how first...

A code indicates a fault somewhere in the whole system
Could be wiring , grounds , connections or the unit itself at fault

You need to work through the diagnostic flow chart for a code in the FSM to identify where the fault actually lies before throwing $$$ at it

Linked below is the diagnostic flowchart for a TPI car to give you a idea of how it works
http://www.chevythunder.com/maf_code_33.htm

Someone with a '96 may be able to put the diagnostics up for you if you don't have the FSM
( considered essential ownership if you want to wrench on your own car )

Dec 29, 2013 | 11:14 PM

Wathen1955

Burning Brakes

Joined: May 2009

Posts: 1,027

Likes: 1

From: Woodland CA

I have a 96. For the P0400, check out this thread where I have a pic and instructions. I repaired mine first. It lasted 2 months then the SES light came on again so I ordered a new AC Delco replacement. So far so good.
http://forums.corvetteforum.com/c4-t...-seslight.html

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