Skip the auto shop - Our mechanics make house calls

Q: Bad Ecu

asked by on

I have a bad Ecu and you guys told me that you can't find the part or you can't help me my truck is riding hard and my EVAP is staying open I replaced it with a new one and it still doing the same-thing can a mechanic program the Ecu

My car has 181700 miles.

A: Any time a computer module is replaced it n...

Any time a computer module is replaced it needs special programming to work with your vehicles other modules and program it to start and run your engine. The programming for the ECU can only be done by a specialized scanner the dealer will only have access to. Some aftermarket companies have some programming capabilities for older vehicles, but they may not be able to work on your ECU. You may have no choice but to go to the dealer to get it done.

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・Save up to 30%

Get a quote

What others are asking

Q: My car is making a noise near the front end

Did you only replace the one tire? If you've noticed the front tires having uneven tread than the other then you will get a tire noise from the transaxle trying to turn the wheels at the same speed. Since one...

Q: 4l80e transmission in limp mode

Hello and thanks for your question. When changing out the transmission and ECM from another vehicle to your vehicle with the same year and model can effect many things. Check all plug to ensure that everything on the transmission is...

Q: Can I reprogram my old computer module or does it have to be done at a dealership?

Hello and thank you for contacting YourMechanic. If the computer to the vehicle has lost its memory, then you can have it flashed (reprogrammed). If the computer had a power loss and a code for P1684, then you would need...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...