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Hello all! I have a 2004 MDX with 191K miles on it. Recently, the CEL came on. I went to AutoZone and got the following codes:
P1454 - Fuel Tank Pressure (FTP) Sensor Circuit Range/Performance Problem
P0420 - Rear Bank Catalyst System Efficiency Below Threshold (Bank 1)
P2138 - APP Sensor A/B or 1/2 (Throttle Position (TP) Sensor D/E) Incorrect Voltage Correlation

AutoZone suggested that I replace the Fuel Tank Pressure Sensor. Has anyone else had these error codes and know what the issue likely is? Any help would be much appreciated.
 
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