Skip the auto shop - Our mechanics make house calls

Q: Won't turn over every turn of the key

asked by on

I have to cycle the key to cold start and on occasion when its warm. I had the battery disconnected not too long ago and it wouldn't start on its own after reconnected (had to hit the throttle/hold to keep running for first 10 seconds). Check engine light wasn't on but got code p0310 (cam positioning sensor) don't know if its related

My car has 130000 miles.
My car has an automatic transmission.

If the ignition switch itself is defective that could implicate Code P0310, as suggested by the below list of causes (which list includes the ignition circuit) of that code setting. You seem to be describing a circumstance where electrical contact is not made on the first try of the key and that you must "cycle" the ignition key to get the car started. Consequently, the P0310 Diagnostic Trouble Code that you have detected should be followed up in a Check Engine Light Diagnostic simply because among the list of possible causes of P0310 are damaged or defective ignition coils and wiring; damaged or defective ignition module or wiring; damaged or defective ignition system sensors, as well as: no fuel or low fuel quality; low fuel pressure; a damaged or faulty spark plugs, wires, or boots; damaged or defective oxygen sensor; damaged or defective fuel injector(s); leaking exhaust gas recirculation (EGR) valve; restricted EGR ports; complete EGR system malfunction; vehicle timing issues; fuel vapors evaporating into engine; and clogged catalytic converter. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

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

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 Toyota 5L smokes black when gooing uphill and loses efficiency. What could be the problem?

A diesel engine spewing black smoke is generally caused by ignition timing that has been retarded too far or a large amount of unburned fuel leaving the engine. A failing turbocharger that is not putting out enough boost may cause...

Q: Engine stalls and vdc and skip lights come on

Hello. The VDC and SLIP messages come on when the computer detects an issue with the vehicle's traction control system. The most common causes for this are a faulty ABS wheel speed sensor, or some sort of electrical fault within...

Q: Car only clicks when turning key

Hi there. A clicking noise commonly signifies that your starter is not receiving the sufficient amount of current in order to turn your engine for starting. Also, a malfunctioning starter solenoid can be your problem. I'd suggest having a certified...

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 Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...