At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
I am only guessing but it seems to me an ECU that can't remember anything is probably faulty.
Inside the ECU or ECM, the brain, the computer can be divided into sections like the circuit board of a radio or a laptop. There will be voltage regulators, an obd interface, a memory for the fault codes and a memory for recent history and a memory for the learned settings. There will be a memory for the preprogrammed settings and drivers for the ignition and injection system and an active computer making sense of the sensor information in order to make constant adjustments.
Just as with most things built on a single circuit board they rarely fail en masse. Usually what happens is just one of the on-board systems fail even though the result for practical purposes is the same as if the whole thing frazzled.
Usually When an ECU fails it is one of the essential functions which leaves no doubt it must be replaced but it isn't inconceivable that any section could fail - even one or more of the memory sections...
start witha new fuel filter and perhaps a intank additive such as heat. also look inside the air box for nests. also common. if all is clear, let it run and idle for about 10-15 minutes look underneath the vehicle and look to see if anything under there is cherry red. if not try holding the accelerator down for a few momoents and check again. if it glows, replace the catalytic converter.
if disc is burnt one this can happen if disc is bought from store you may need to have unit removed to get it fixed,try disconnecting battery to see if it resets itself,some burnt CDs are nothing but trouble
That was happening to my 97 GLE as well. I wound up having to replace the alternator. Good thing I did my mechanic said it could have gone up in flames if I'd waited. I'd ask a knowlegdable mechanic or dealer first, it was $200+.
360 hassle - since you have a check-engine light on, and your car is an OBD2 car (96 or newer), go to AutoZone and have the ECU scanned (it's free). They'll give you the fault code(s), which you can post up here, and we can diagnose it then.
×