Skip the auto shop - Our mechanics make house calls

Q: Code 2305 coil #2 no spark.

asked by on

Changed both 0xygen sensors, pressure checked each cylinder, changed spark plugs, wires, and ignition coil. Still no spark at all from coil #2.

My car has 137000 miles.
My car has an automatic transmission.

A: Hi. This sounds like there may be an issue ...

Hi. This sounds like there may be an issue with the wiring harness that is coming from the powertrain control module (PCM) to the ignition coil causing no spark in coil number two. There could be a short to ground in the wiring harness, or broken or corroded wiring in the harness. These are the most likely causes of this problem. In some rare cases the PCM has a fault causing the number two coil not fire. All of the wiring from the ignition coil to the PCM needs to be inspected and tested before replacing the PCM. A certified YourMechanic technician could help you diagnose this issue by inspecting the vehicle for any electrical issues and suggesting any necessary repairs.

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: Car burning oil.

The BMW manufacturer considers 1 quart per 750 miles for normal engines and up to 2.5 quarts on motor sport engines. Under heavy loads the engine will use more oil. This is what BMW says is normal. You should not...

Q: Does my catalytic converter have a sensor?

Hello, thanks for writing in. You do have a catalyst O2 sensor. The failure of the 15psi test is most likely the catalyst is clogged causing the excessive exhaust back pressure. The catalyst should be replaced if it exceeds the...

Q: Do i really need to replace the ignition coil?

There are ways to test the output of the coil before it reaches the distributor cap. Usually, if there is a problem with a spark plug wire, spark plug, or distributor cap, the problem is consistent. Those parts can...

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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...