NewCelica.org Forum banner

1 - 4 of 4 Posts

·
Registered
Joined
·
1,980 Posts
Discussion Starter #1
fill up with gas get back on the highway, and CEL is on....

i thought...um maybe i didn't screw the cap on tight....pulled over made sure it was on...light continues to stay on....

all i have is TRD filter and TRD exhaust....

what u think?

i will get it checked tomorrow and report back but nay ideas?

John
 

·
Registered
Joined
·
1,980 Posts
Discussion Starter #3
CEL code is p0420

says Catalyst Efficiency Bellow Threshold....(bank 1)

whats this?

John
 

·
Premium Member
Joined
·
9,606 Posts
P0420 is generally associated a problem with the intake system. If you installed your TRD filter, go back in there and make sure that all the vacume hoses are going where they are supposed to and whatnot. Another few things you can do is take out your MAFS and clean it, and reset the ECU by unplugging the negative battery terminal for a few mins.
 
1 - 4 of 4 Posts
Top