Skip the auto shop - Our mechanics make house calls

Q: Car stalled and now won't start

asked by on

I got the Service Engine Soon warning light for the O2 sensor in bank 2. I never got around to getting it fixed and the other day my car lost power and now won't start. I am getting codes P0056, P0160, and P0402.

A: The first two codes point to the bank 2 sen...

The first two codes point to the bank 2 sensor 2 and could be a problem with the wiring to the sensor or the catalyst is broken up and clogged the exhaust. The last code P0402 is for the EGR valve excessive flow. This can be the EGR valve is stuck open from carbon and the valve could also just be stuck open. This would cause the engine to run rough and possibly not start. I recommend you have a mechanic, like ones from YourMechanic, come by and do an overall inspection of your car’s no-start condition.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: my son replaced a brake line on my cadillac deville 2001 but he cant seem to bleed them properly

Sometimes replacing a brake line or hose can cause the brake system to become air-bound. Try gravity bleeding the brake system first. With the brake fluid reservoir cap removed and the brake fluid level correct, loosen the bleeder screw at...

Q: Knocking under car.

This is may be anything from wheel bearings to ball joints and struts. The fact that it only happens when the car is rolling and not under a load suggests that it may also be something as simple as something...

Q: What does the Service Engine Soon Light mean?

The meaning of the "Service Engine Soon" Light is dependent on the make and model of your car and the manufacturer’s specifications. There are numerous dashboard indicator lights, and the particular indicator lights that are included on a dashboard are...

Related articles

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...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.