SES light when cut-out is open??
#1
SES light when cut-out is open??
I just installed a Flow Tech 3" cut-out over the weekend, it was placed as far back after the cat as i could get it...probably a little passed the passanger seat. I had it open for the first time today, drove it to work and back. On my way to work it was fine, on the way home the SES light came on. I pulled off into a parking lot, turned my car off and re-capped the cut-out. When i restarted it the light was off. I don't get it, it's nowhere near the O2 sensors or anything and i am still running through the cat even with the cut out. Could the difference in back-pressure actually cause the SES light to go on? I'd appreciate any suggestions or help, i don't want to be afraid of uncapping the thing every once in awhile.
#7
Originally posted by PROJEKT Z28
Check the code- P0400 is an EGR valve DTC. You can sometimes get the code with less restrictive exhaust. I do sometimes with the cut-out open.
Check the code- P0400 is an EGR valve DTC. You can sometimes get the code with less restrictive exhaust. I do sometimes with the cut-out open.
Shouldn't happen; but, it does.
#8
I will have to check what code it is for sure before driving myself nuts. If it is a PO400 getting thrown from lack of back-pressure will it hurt my car to run with the cut-out open all the time if i keep getting that same code? Any way to prevent it from going on?
#9
Originally posted by Rice-X
I will have to check what code it is for sure before driving myself nuts. If it is a PO400 getting thrown from lack of back-pressure will it hurt my car to run with the cut-out open all the time if i keep getting that same code? Any way to prevent it from going on?
I will have to check what code it is for sure before driving myself nuts. If it is a PO400 getting thrown from lack of back-pressure will it hurt my car to run with the cut-out open all the time if i keep getting that same code? Any way to prevent it from going on?
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