Q: Remote start stopped working and check engine light went on.

asked by on

We purchased this car 2 weeks ago and the remote start was working fine. We drove it today to several places and used the remote start and it worked until our last stop and it would not start. The check engine light is on and my husband put a code reader on it. The codes are PO171 and PO174. Can you help us get this working again? We have checked to make sure doors and windows are closed, trunk and hood closed.

My car has 45000 miles.
My car has an automatic transmission.

Hi there. The codes are referring that that both banks on the engine are reading a lean condition. For a lean condition to occur, the fuel system is not functioning properly. Check the fuel pump, fuel pump relay, and the fuel injectors to see what is not working. If the injectors have power to them, then check for fuel pressure on the fuel rail. If there is no fuel pressure on the fuel rail, then check the fuel pump relay and feel if its clicking. If the relay is not clicking, then remove the relay and check for a power to the relay. If there is power to the relay, then either the relay is not working or the fuel pump is not working. If there is no power to the relay, then the ignition system has it locked out. Since the vehicle has a remote start system, it may have the vehicle’s fuel system locked out. If you need further assistance with your engine not starting, then seek out a professional, such as one from Your Mechanic, to help you.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Remote start stopped working and check engine light went on.

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: loss of power when driving check engine light blinking at 30 mph just changed manifold intake have p0171 p0174codes

You are having problems with the fuel injection system poppet injectors not opening up or stuck open causing the misfire. You may have a bad fuel pressure regulator or you did not seal the fuel lines into the regulator good...

Q: Q: Car Won't Start

Hello. From what you describe it would appear that your vehicle is having some sort of malfunction with the security system. It may be possible that the security system is enabled and preventing the vehicle from starting. This may or...

Q: I turned on my car but it kept turning over and wouldn't start. When it caught, it sputtered and turned off.

Hi there. Check the fuel system for any leaks. If there is no leaks, then go to the fuse box under the hood and locate the fuel pump relay. Check the relay and see if it is clicking when you...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.