2002 Toyota Camry Q&A

2002 Toyota Camry Question: CEL Light, Got PO 171 System Lean Bank 1

Car starts and runs as usual. Cleaned MAF. CEL has returned. Any suggestions for next move. Thanks. -
Answer 1
Check for vacuum leak, lazy 02 sensor(1). Replace fuel filter. Check MAF/ 02 data with a real scanner. Any exhaust leaks around the front 02 sens? -