Skip the auto shop - Our mechanics make house calls

Q: car cranks but doesn't start

asked by on

The car cranks but doesn't start and doesn't link with obd2 scanner and there is no spark. Fuel is priming and keys are detected! Can the computer be fried?

My car has 150000 miles.
My car has an automatic transmission.

A: When this situation occurs, the first thing...

When this situation occurs, the first thing I look for is checking the fuses or electrical relays to the ECU. In general, the most common cause of being unable to connect to the scanner or to the ECU is caused by either an internal fault or a wiring issue. Since this can be a technical process, it’s best to let one of our qualified technicians complete an electrical component inspection for you, to rule out that your computer is indeed "fried."

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: Bad gas mileage on the highway

There are many things that can cause the fuel mileage to go down or be lower than what others are getting. The most important thing is to not use performance parts like filters or sensors. These only increase the power...

Q: Car won't start. It cranks but won't start.

Just a little note, the water pump is driven by the timing chain and not the fuel pump. Your fuel pump is in the fuel tank and may be the cause of the no start. If you have a full...

Q: Vehicle shut off while I was driving.

Driving your car after an accident without having a mechanic inspect it first can be risky. Even if your collision was small, it is still best to have your vehicle thoroughly inspected by a certified technician to make sure your...

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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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.