Rc Engines Modified

Rc Engines Modified my check engine light code P0172 for 2003 celica gt? i have a 2003 celica gt that is mildly modified with headers, 1 inch throttle body spacer, new MAF, new ISCV, lighter crack pulley, CIA, and the ECU has been reflashed/reprogrammed. i’ve been receiving the code P0172 so i had the injector [...]