cmleb88
08-21-2014, 11:55 AM
Hello. I'm getting multiple codes, they've been going on/off for about a year now and I'm getting tired of seeing them come back. Sometimes I'll go 3-4 months w/o an MIL, sometimes I fill up my tank and it goes off, and sometimes I have to use my OBD scanner to turn them off. Possible SLIGHT performance reduction, but no mileage change as far as I can tell.
Codes: P0420 catalyst below threshold bank 1
P1456 Evap ECS Leakage Fuel Tank
P1457 Evap ECS Leakage Evap Canister system (this one shows up 2x)
I'm sure this means I have to replace the cat, and likely the O2 sensors since I live in New England and everything rusts. Just wanted to see if anyone has had any of these issues previously, and how you went about fixing it before I spend $1100 on an OEM cat. Thanks!
Oh, it's an '03 si.
Codes: P0420 catalyst below threshold bank 1
P1456 Evap ECS Leakage Fuel Tank
P1457 Evap ECS Leakage Evap Canister system (this one shows up 2x)
I'm sure this means I have to replace the cat, and likely the O2 sensors since I live in New England and everything rusts. Just wanted to see if anyone has had any of these issues previously, and how you went about fixing it before I spend $1100 on an OEM cat. Thanks!
Oh, it's an '03 si.