Hii fellow fist owners and enthusiasts. I have just bought a 2018 fiesta st magnetic at 80k files a month back. Its complete stock non recaro base fist. Its worth every praise.
BUT it has a permanent CEL its P0462. Gauge sticks at E/F intermittently. Low fuel indicator when gauge at E. when stuck at E/F miles to empty goes blank. Tried on all fuel levels other than empty. No idling/ fuel issues/ no boost issues.
Tried everything other than ecu flash.
1. Checked fuel sender (found ok). Even then replaced it.
2. Checked ground. No issues found.
3. Did IPC check in test mode. Found ok. Gauge works in test mode.
4. Tried techron fuel cleaner as step1. Two runs no impacts.
5. Checked fuses and relays. Replaced fuel pump relay as a test.
6. battery disconnect tried multiple times. Ecu soft reset by crossing disconnected terminals.
7. Replaced evap canister as suspect( not required but in rage of frustration)
8. No other code than P0462. Thought on board diagnosis is crazy so tried introducing other errors and thats its fine)
Planned fixes.
ECU flashing/ refurbished ECU.
Request help on what am I missing?
Members in Pittsburgh, any good shop which specialises in fist issues?
Car drives excellent otherwise.
BUT it has a permanent CEL its P0462. Gauge sticks at E/F intermittently. Low fuel indicator when gauge at E. when stuck at E/F miles to empty goes blank. Tried on all fuel levels other than empty. No idling/ fuel issues/ no boost issues.
Tried everything other than ecu flash.
1. Checked fuel sender (found ok). Even then replaced it.
2. Checked ground. No issues found.
3. Did IPC check in test mode. Found ok. Gauge works in test mode.
4. Tried techron fuel cleaner as step1. Two runs no impacts.
5. Checked fuses and relays. Replaced fuel pump relay as a test.
6. battery disconnect tried multiple times. Ecu soft reset by crossing disconnected terminals.
7. Replaced evap canister as suspect( not required but in rage of frustration)
8. No other code than P0462. Thought on board diagnosis is crazy so tried introducing other errors and thats its fine)
Planned fixes.
ECU flashing/ refurbished ECU.
Request help on what am I missing?
Members in Pittsburgh, any good shop which specialises in fist issues?
Car drives excellent otherwise.