Nissan 370Z Forum - View Single Post - P0456 error and cost

rezak1 · 12-01-2020, 09:08 PM

Here is an update:

I took it to the shop and it turned out there was a small leak which I had them fix. This is what they wrote up in the receipt:
"Pulled codes. P0456 - EVAP system leak, small. P0101 - mass airflow circuit out of range. P010b - MAF circuit/circuit B2. MAF sensor codes are stored as history codes. EVAP code is what turned on check engine light. No current problems with MAF sensor. Research shows if this MAF codes persist, a reflash may be needed. Smoke diagnostic of EVAP system found leakage at EVAP vent solenoid and fuel cap. Fuel cap looks fairly new but is aftermarket and is not sealing properly. Recommend new EVAP vent solenoid and original Nissan cap. Replaced EVAP vent solenoid with original Nissan part. Also, replaced gas cap with original.”

All in all, this cost me $345.49.

12-01-2020, 09:08 PM	#5 (permalink)
rezak1 Base Member Join Date: Mar 2013 Location: Los Angeles Posts: 30 Drives: 2013-370Z-Black-MT Rep Power: 12	Here is an update: I took it to the shop and it turned out there was a small leak which I had them fix. This is what they wrote up in the receipt: "Pulled codes. P0456 - EVAP system leak, small. P0101 - mass airflow circuit out of range. P010b - MAF circuit/circuit B2. MAF sensor codes are stored as history codes. EVAP code is what turned on check engine light. No current problems with MAF sensor. Research shows if this MAF codes persist, a reflash may be needed. Smoke diagnostic of EVAP system found leakage at EVAP vent solenoid and fuel cap. Fuel cap looks fairly new but is aftermarket and is not sealing properly. Recommend new EVAP vent solenoid and original Nissan cap. Replaced EVAP vent solenoid with original Nissan part. Also, replaced gas cap with original.” All in all, this cost me $345.49.