Can ECM cause no spark?
It is extremely rare for a no spark condition to be the result of a faulty coil or ECM. Users get fixated on these items and jump to the conclusion they must be responsible for their problem because these items are easy to see and replace.
Can a bad distributor still spark?
A faulty engine distributor won’t spark, which will either prevent the engine from starting or cause it a running engine to fail. The distributor also disburses current to the spark plugs initiating engine performance. Check the Distributer Cap. Often the distributor cap is suspect.
What are signs of a bad distributor?
Symptoms of a Bad or Failing Distributor Rotor and Cap
- Engine misfires. Engine misfires can occur for a number of reasons.
- Car doesn’t start.
- Check Engine Light comes on.
- Excessive or unusual engine noises.
Can a bad distributor cause no spark?
A faulty engine distributor won’t spark, which will either prevent the engine from starting or cause it a running engine to fail. In order for the ignition system to work properly it is important to keep the engine distributor operating at maximum efficiency. The distributor also disburses current to the spark plugs initiating engine performance.
What does no spark mean?
No spark indicates an ignition problem. In extreme cases the (PCM) may have failed. In some cases, a (PCM) problem will cause the vehicle not to run at all. The (PCM’s) functions include positioning the crankshaft and controlling the ignition spark and timing.
Why is my spark plug not firing?
A spark plug won’t fire properly if its electrodes have been worn thin, if they are covered with combustion deposits or if they’re wet. If the plug has seen many hours of service, the electrodes may just be worn out, and replacing the plug will restore normal engine operation.
Why does a small engine have no spark?
A faulty ignition coil can also lead to a no-start condition. For vehicles that use a single ignition coil as the source of spark for all of the cylinders, a faulty coil will affect the operation of the entire engine. If the coil fails completely, it will leave the engine without spark, which will result in a no spark, no-start condition.