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How do I know if my ECU is faulty?
Here are the most common symptoms of a bad ECU:
- Check Engine Light stays on after resetting.
- Car was jump started on reverse polarity.
- Engine turning off for no reason.
- Water Damage or Fire Damage on the ECU.
- Apparent loss of spark.
- Apparent loss of injection pulse or fuel pump.
- Intermittent starting problems.
- Overheating ECU.
How does an ECU get damaged?
The ECU has seals around it which are supposed to prevent moisture from entering inside. Moisture is a bad thing to have in an ECU because corrosion will form on its components. If the corrosion is not cleaned away quickly, it will cause these components to get damaged. Then you will have a malfunctioning ECU.
What problems can a faulty ECU cause?
If the ECU has any issues, it may throw off the timing and fuel settings of the engine, which can negatively affect performance. A faulty ECU may cause the vehicle to experience a reduction in fuel efficiency, power, acceleration.
Can I drive with a faulty ECU?
You absolutely cannot drive a car with a faulty ECU. While it may be functional for a while the potential for catastrophic failure does exist. If the ECU fails completely then your car is not drivable.
Can a ECU be fixed?
ECU repairs can be very expensive. Fortunately, an ECU can be repaired or reprogrammed in many cases—thus preventing the need to actually replace an ECU.
Can an ECU be repaired?
How much does it cost to fix a ECU?
You should expect to pay between $150 and $300 at a local repair shop or service center just to have the ECU inspected and tested. In many cases, the faulty ECU can be repaired or reprogrammed, and this type of repair will usually run between $300 to $750, depending on the make and model of your vehicle.
What does the ECU control?
Fundamentally, the engine ECU controls the injection of the fuel and, in petrol engines, the timing of the spark to ignite it. It determines the position of the engine’s internals using a Crankshaft Position Sensor so that the injectors and ignition system are activated at precisely the correct time.
Why is my Daewoo Matiz still not starting?
Daewoo still not starting but turns over, have checked injectors, have got live feed going to injectors with ignition on and when cranking. Injectors not pulsing, have used a neon light to test. ( a little plug in tool ) If we unplug the imobiliser we can get access to the ECU, no fault codes appear.
What happens when an ECU goes bad in a car?
A faulty ECU is probably the worst thing for a car. It’ll work but its performance will be heavily affected. You’ll notice sudden drops in fuel economy and jerky gear shifts. The check engine light staying on might mean a lot of possible errors but an ECU fault is one of the major ones. What Happens If An ECU Is Dead? The car won’t start at all.
How big is the engine in a Daewoo Matiz?
The city car Daewoo Matiz was produced in several generations and with various modifications in 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015 year mainly with small engine displacement 0.8 and 1.0 liters.
How often should you replace cambelt on Daewoo Matiz?
Check your coils for cracks or any signs of damage, and order replacements from BreakerYard. You should also check the spark plugs and replace them as needed. The car is producing a large amount of thick smoke from the exhaust pipe. The cambelt on a Matiz needs to be replaced every 40,000 miles.