Hey guys/gals. So I am having an issue with my CEL and the bank 1/2 lean codes. I know there is a TSB out for the fuel pump... so here is what I have done so far:
1. Changed the fuel pump (entire thing) and had Toyota flash the ecu properly.
2. Sprayed the engine while running with carb cleaner to look for vacuum leaks.
3. Cleaned, then replaced the MAS sensor.
4. Replaced the fuel pressure regulator.
Also, this is a 5.7L flex fuel engine. 2014.
Now I am still getting the really hard start in the morning. Usually takes a 3-4 tries to get going. After that it goes on 1-2 tries during the day. Keeps getting the lean codes. Not really sure where to look next.
Any idea would be appreciated.
1. Changed the fuel pump (entire thing) and had Toyota flash the ecu properly.
2. Sprayed the engine while running with carb cleaner to look for vacuum leaks.
3. Cleaned, then replaced the MAS sensor.
4. Replaced the fuel pressure regulator.
Also, this is a 5.7L flex fuel engine. 2014.
Now I am still getting the really hard start in the morning. Usually takes a 3-4 tries to get going. After that it goes on 1-2 tries during the day. Keeps getting the lean codes. Not really sure where to look next.
Any idea would be appreciated.
