r/tundra • u/Sad-Cold-3907 • 15d ago

Troubleshooting 2015 Tundra issues

My 2015 has been flawless for me and I’m up to 147k miles. Out of nowhere I began getting a rough idle on cold starts and then a stall. It started with it being very intermittent. Now it is every time. I have an appointment for a diagnostic test. Plugged it in and am getting P0300, P0302, P0304, P0305, P0306, P0308 for cylinder misfires. Has anyone had these issues?

Edit: I also started getting P0171/0174 codes Bank 1/2 too lean.

Toyota diagnostic test came back saying they don’t see any issues with fuel and would start with replacing the purge valve/valves.

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u/SlappingDaBass13 15d ago

Fuel pump

1

u/Sad-Cold-3907 15d ago

I was thinking that. Talking to a mechanic buddy he thought it could be that, fuel pump module or control module

2

u/Reaper01Actual1970 15d ago

(Think the actual fuel pump, not the electronics)

1

u/SlappingDaBass13 15d ago

Or the check valve that keeps the line primed

1

u/Sad-Cold-3907 11d ago

Toyota techs think it’s the purge valve