troubleshoot code
#1
troubleshoot code
i had the SES light on so i went to autozone to get it pulled. the code i got was P0401. was told its the EGR valve. i have longtubes, off road x pipes, and 40 series flows. was told could be from my car running rich. anything i can do to clean it? or is it better to just replace it?
#2
P0401 does not necessarily mena the valve is bad, here is what the shop manual says are possible causes...
#3
so what do you think it could be? i was reading that about the vaccum and it has me wondering, cause just a few times when i was braking semi quickly my car stalled almost like it was pulling too much vaccum and shut the car off.
#4
It's not possible to determine the exact problem via postings on the forum. However, on our cars (assuming you have a '99 to '04 GT) vacuum and braking are unrelated, Our cars use Ford's Hydroboost braking system that uses power steerng system hydraulic pressure for braking assistance--I understand they didn't want to do this, but there was no room left for a braking assist vacuum motor.
It may be that the EGR valve is the problem, but work the suggested causes from top top bottom before just running out an buying a new EGR valve...
It may be that the EGR valve is the problem, but work the suggested causes from top top bottom before just running out an buying a new EGR valve...
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lincolnshibuya
V6 (1994-2004) Mustangs
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12-08-2015 04:37 PM