CEL Code 71 Question
01-09-2011, 01:52 AM
#1
Registered User
Thread Starter
Join Date: Dec 2010
Location: Beaufort, SC
Posts: 152
Likes: 0
Received 0 Likes
on
0 Posts
CEL Code 71 Question
So I have a code 71, EGR problem... I recently installed a catback (which came with and is using bolt on U-clamps? I think they're called...) anyways... Would a leak from this system cause a code 71 CEL message?
01-09-2011, 06:11 PM
#3
Nope, sure wouldn't.
That's an EGR gas temperature sensor code. Which means the EGR valve is malfunctioning, the VSV for the EGR is malfunctioning, and/or there's a open/short in the sensor or VSV circuit. Could also be a fault in the ECU possibly, but that'd be the last on the list of things to check.
Here's the good stuff.
http://personal.utulsa.edu/~nathan-b...00egrgaste.pdf
http://personal.utulsa.edu/~nathan-b...77exhaustg.pdf
http://personal.utulsa.edu/~nathan-b...85diagnosi.pdf
That's an EGR gas temperature sensor code. Which means the EGR valve is malfunctioning, the VSV for the EGR is malfunctioning, and/or there's a open/short in the sensor or VSV circuit. Could also be a fault in the ECU possibly, but that'd be the last on the list of things to check.
Here's the good stuff.
http://personal.utulsa.edu/~nathan-b...00egrgaste.pdf
http://personal.utulsa.edu/~nathan-b...77exhaustg.pdf
http://personal.utulsa.edu/~nathan-b...85diagnosi.pdf
Last edited by MudHippy; 01-09-2011 at 06:21 PM.
01-09-2011, 07:23 PM
#4
Registered User
Thread Starter
Join Date: Dec 2010
Location: Beaufort, SC
Posts: 152
Likes: 0
Received 0 Likes
on
0 Posts
cool thanks... Prolly will be replacing the valve (all the EGR stuff has 160,000 mi. on it now with a slightly rich running engine...) see if that helps
Thread
Thread Starter
Forum
Replies
Last Post
nframe
3.4 Swaps
3
08-16-2015 09:03 AM
