- 1 How long do car computers last?
- 2 Do car computers go bad?
- 3 How do you tell if a ECU is going bad?
- 4 Can you drive a car with a bad ECU?
- 5 How do I know if I need to replace my ECM?
- 6 Can a PCM fix itself?
- 7 What causes a car computer to go bad?
- 8 How much does it cost to reprogram a car?
- 9 Can ECM be repaired?
- 10 What does resetting the ECU do?
- 11 How much does a new ECU cost?
- 12 How much does it cost to replace ECM?
- 13 How do I know if my ECM relay is bad?
How long do car computers last?
It should last the life of the car unless something is killing it..an electrical short or voltage spike will easily kill an ECU. I’ve done it before. It should last much longer than 5 years.
Do car computers go bad?
A faulty computer may cause the vehicle to intermittently have issues such as stalling or misfires. The symptoms may come and go, and may not appear to have any sort of pattern to their frequency or severity.
How do you tell if a ECU is going bad?
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.
Can you drive a car with a bad 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.
How do I know if I need to replace my ECM?
Signs Your ECM or PCM Might Need Replacing Engine Performance Issues – You’ll notice a reduction in fuel efficiency, power, and acceleration. Car Not Starting – Your vehicle does not start or is difficult to start. The engine may still crank but won’t be able to start without vital inputs from the computer.
Can a PCM fix itself?
PCMs are not rebuilt in the same way that alternators and water pumps because there are no mechanical parts that wear out. Remanufacturing in this case usually means testing the computer, isolating and repairing any faults that may be found, then retesting the computer to make sure everything works correctly.
What causes a car computer to go bad?
Corrosion on the wiring harness and increased moisture are common causes of faulty ECMs. Moisture may enter through corroded ECM seals, which is common in old cars (5 to 10 years). Moisture may also corrode the wiring harness around the electronic fuel solenoid and cause a short in the ECM.
How much does it cost to reprogram a car?
The cost to have your vehicle’s car computer reprogrammed will all depend on the dealer/mechanic you use, the vehicle you drive and your geographical location From what we researched online, the costs to simply reprogram the car’s computer and nothing else would range anywhere from $80 to $180.
Can ECM be repaired?
The first, and easiest, way to repair an ECM is if there’s a problem with the power supply. Oftentimes, these can be repaired by a skilled mechanic or electrician, by rectifying any shorts or bad connections. However, most ECM problems are a result of a bug in the software itself. This isn’t common.
What does resetting the ECU do?
“Resetting the ECU” is the process of clearing all the long term memory from the ECU’s memory. These variables trim idle speed, fuel, spark, and more. The ECU will also store trouble codes for diagnostic capability.
How much does a new ECU cost?
ECU repairs can be very expensive. The part alone can cost between $1,000 and $3,000, depending on the make and model of your vehicle. Fortunately, an ECU can be repaired or reprogrammed in many cases—thus preventing the need to actually replace an ECU.
How much does it cost to replace ECM?
The cost for the new ECM will typically be around $800, with labor around $100, bringing the average total expense for an ECM replacement to approximately $900 before taxes and fees. This can increase depending on the shop you go to or the type of car you, running as high as $2,000.
How do I know if my ECM relay is bad?
Symptoms of a Bad or Failing ECM-Power Relay
- No power when the key is inserted. One of the first symptoms of a problem with the ECM power relay is no power when the key is inserted.
- Engine will not start.
- Battery drain or dead battery.