check engine light has been on/off for a week and no cure.

coffinator6 · September 17th, 2007, 08:10 PM

well last monday I had a check engine light for a p1409 EGR vacume regulator circuit fault. the little machine at auto zone said it was a dealer code so i came and looked it up here. LOng story short my vacume lines are good. I replaced my DPFE sensor, egr valve, and my EVR control valve. and it still runs wrong. what do i need to do now? i am lost. the only thing it could be is an electrical connection or a air line behind the engine i cant see.

the car idles really bad and when i let off the gas it lunges consistantly.

anyone have any idea?

Juggalo_X · September 18th, 2007, 02:03 PM

have you checked to see if the egr diaphragm is moving freely? it may not be a problem with the vacume circuit but the diaphragm its self could be jammed

Juggalo_X · September 18th, 2007, 02:04 PM

Originally Posted by Juggalo_X

have you checked to see if the egr diaphragm is moving freely? it may not be a problem with the vacume circuit but the diaphragm its self could be jammed

that could cause the same code

September 17th, 2007, 08:10 PM	#1
coffinator6 Regular Join Date: Feb 2007 Location: Choctaw. Oklahoma Posts: 434	check engine light has been on/off for a week and no cure. well last monday I had a check engine light for a p1409 EGR vacume regulator circuit fault. the little machine at auto zone said it was a dealer code so i came and looked it up here. LOng story short my vacume lines are good. I replaced my DPFE sensor, egr valve, and my EVR control valve. and it still runs wrong. what do i need to do now? i am lost. the only thing it could be is an electrical connection or a air line behind the engine i cant see. the car idles really bad and when i let off the gas it lunges consistantly. anyone have any idea?

Threads Similar to: check engine light has been on/off for a week and no cure.
Thread	Thread Starter	Forum	Replies	Last Post
Check Engine Light On '01 GT	OcOnnor220	99-04	24	September 26th, 2007 04:58 PM
check engine light has been on/off for a week and no cure.	coffinator6	99-04	4	September 17th, 2007 07:38 PM
check engine light on	Yoursuperman22	V6 Mustangs	8	January 29th, 2007 05:46 PM
Seriously need Check engine light help!!	jsteves1313	V6 Mustangs	4	November 5th, 2006 02:24 PM
Check Engine Light	zhunter	General Tech	10	October 20th, 2006 03:32 AM

All times are GMT -4. The time now is 07:35 AM.
Contact Us - Modded Mustangs - Top
Modded Mustangs is ©2005-2008, All Rights Reserved, And is Not Affiliated with Ford Motor Company. Forum is powered by vBulletin ©2000 - 2008, Jelsoft Ent. Ltd. & SEO by vBSEO 3.1.0 ©2007, Crawlability, Inc.