Got a P0401 after all motor mounts changed
#1
Got a P0401 after all motor mounts changed
After replacing all mount I got a P0401 code and the car now feels rough. Has anyone have any idea what could be the issue? I clean out the EGR valve, TB, IAC and MAF.
#2
Evolving Member
Did you connect your o2 sensors? That code can be a whole domino effect of problems, but it says that your cat is inefficient. A faulty or not connected o2 can do it.
#3
Evolved Member
iTrader: (2)
but before you go blow out cash, check the connections and reset the ecu and/or replace that front o2 ( $60 or so )
#4
Evolving Member
or if lets say you change the o2 thats on the header and still throws it, then you can likely kiss that header goodbye and buy a ~$500 part to correct the issue like i did... depending on where you live, like in CA or NY, it has to be 50 state legal and will cost ya. i was lucky to find my header for under 500 on amazon thats legal...
but before you go blow out cash, check the connections and reset the ecu and/or replace that front o2 ( $60 or so )
but before you go blow out cash, check the connections and reset the ecu and/or replace that front o2 ( $60 or so )
and you can find a 50 state legal header cheaper than $500..... $410.79 from rock auto
Last edited by jimbo74; Jul 22, 2015 at 04:05 AM.
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#8
The Code showed up after I replaced all the motor mounts, however, I did clean out the EGR valve as soon as i knew what the code was to see if that would make the code go away
#9
Evolving Member
Again changing your mounts didn't trigger the code. You wither yanked on, broke, or disconnected something. If you cleaned your egr and reset the computer and it came back, and you have verified your wiring is ok, then replace the egr
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