Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!
Happy 4th Automotive family. I want to reach out and ask for some help diagnosing a crank no start on my 3.0 j series a30a5 accord. On dash it’s showing a blinking “0” and got a code of ecm failure. I think it’s the main relays circuit board but I didn’t see any cracks with the naked eye. I haven’t used a magnifying glass to confirm. Moving forward I needed help further diagnosing for correct part and confirmation on what I needed to fix this issue and get my car in the road. I’m thanking in advance for any input and help. Thanks for your time and thank you for your website