I need help figuring out what's wrong with my car.

Question

I have a 2011 Chevy Cruze Eco that sometimes doesn't start and sounds like it misfires at around 3,000 - and up. The codes that it's showing are p0171, p0507, p1101, and p0301. What could be causing these? And how can I fix these problems.

Answer 1

P0171 Fuel trim system lean

P0507 Idle speed too high

P1101 Intake air flow system performance

P0301 Misfire number 1 cylinder

The fix here is to correct the code condition for P1101. This would cause a lean code and a TPS to set a high idle , but this would not cause a misfire condition. For now fix for P1101 use this TSB for a guide