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P0172 Diagnostic Trouble Code Discussion for November 2023

Fuel System Rich (Bank 1)


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Trouble Ticket Help Requests for DTC P0172
Help Request Posted
2000 Toyota Sienna LE 3.0L Misfire VIN: 4T3ZF13CXY
P0172: Fuel System Too Rich (Bank 1). I have another doozy! At least for me it is. This one arrived blowing the EFI fuse. This fused circuit went right to the ECM. If I unplugged the ECM, the fuse would not blow. If I plugged the ECM in the fuse would blow. Put a reman ECM in it and it started...
November 02, 2023
2000 Toyota Sienna LE 3.0L Misfire VIN: 4T3ZF13CXY
P0172: Fuel System Too Rich (Bank 1). I have another doozy! At least for me it is. This one arrived blowing the EFI fuse. This fused circuit went right to the ECM. If I unplugged the ECM, the fuse would not blow. If I plugged the ECM in the fuse would blow. Put a reman ECM in it and it started...
November 20, 2023