Is your ECU faulty?

At Specialized Ecu Repair, we understand the frustration and inconvenience caused by electronic control Unit (ECU) faults.
Our team of experts is dedicated to diagnosing and resolving these issues to get your Porsche and Ferrari back on the road fast and safely.

Watch these videos to understand how you can potentially diagnose your faulty ECU.

If you believe that your ECU is faulty, fill up the contact form to get help and get your car back on the road.


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Here are the common symptoms of a bad ECU.

  1. Check engine light stays ON after reset
  2. Car was jump-started on reverse polarity
  3. Engine shutting off for no reason
  4. Water damage or fire damage on the ECU
  5. Apparent loss of spark
  6. Apparent loss of injection pulse or fuel pump
  1. Intermittent starting “cranking” problems
  2. Overheating ECU created by bad components
  3. ECU has broken connector pins
  4. Loss of communication with scanner tool
  5. Checksum errors
  6. Replacing ECU that does not match security coding


Examples of physical or environmental damage that we see on most ECU’s:

Many other symptoms may occur that can drastically lead an ECU failure such as:

  • Erratic Idle
  • Stalling
  • Poor running condition
  • Excessive fuel use
  • Misfiring cylinders
  • Not able to pass emissions control


If you have problems like the ones described above we recommend
testing or potentially replacing or testing these parts:

  • Ignition coil, spark plugs or ignition module (Misfire related)
  • DME relay or main relay (Car failure to start or supply voltage to ECU)
  • Fuel injectors (Misfire related or poor running condition)
  • Idle control valve (Erratic or inconsistent idle)
  • TDC and RPM sensors (Failure to start)
  • Air flow or MAF sensor (Poor running or backfiring)
  • Throttle position sensor (No acceleration)
  • Alternator (Overcharging issues)
  • Wiring harness (Loose or corroded ground points)
  • Relays (Specific functions like fuel pump activation)
  • Fuses (Supply of voltage to key engine components)

If you believe you have a faulty ECU, we can save you the time and money by testing your ECU DME for $149 before spending on costly diagnostic labor and sensors.