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  1. Crank but no start, CEL no codes

    Mechanical Problems & Technical Chat
    I had the same issue that was resolved by replacing the ECU. Apparently it's common for the ECU's processor to go out intermittently, especially when hot. It can't be repaired at ECU shops. You have to buy a new ECU and have it reprogrammed by either a dealership or a mobile locksmith that deals...
  2. Civic 2008 Starter cranks but no ignition

    Mechanical Problems & Technical Chat
    I had this very same issue on my 2007 Honda Civic EX. Intermittent crank no start. Turned out to be the ECU. The ECU repair shop said this was a common issue. Apparently it's a processor issue that can't be repaired. I suggest buying a new ECU from a honda distributor and having it programmed to...
  3. ECU Replacement/Immobilizer Reprogram???

    Mechanical Problems & Technical Chat
    I had a similar issue. The ECU on my 2007 civic EX coupe went out and I got a used one on Ebay for about $100. I swapped the ECU's and instead of towing my car into the dealership, I called a local mobile locksmith that came to my house and reprogrammed it for me for $185. All it took was...
  4. 2007 Honda Civic EX Crank No Start

    Mechanical Problems & Technical Chat
    RESOLUTION: I got a call the other day from the ECU repair shop telling me that my ECU was fried beyond repair. They are shipping the core back to me for a $15 fee. The good news for me is that the real problem was discovered. Fortunately, I found a used ECU on ebay for about $100 that was a...
  5. 2007 Honda Civic EX Crank No Start

    Mechanical Problems & Technical Chat
    I think you are right on. After your last suggestion, I thought about it some more and it makes sense that when you run power through circuits and resistors it creates a lot of heat internally on the board itself, especially if they are cracked or damaged. Heating the ECU externally wouldn't...
  6. 2007 Honda Civic EX Crank No Start

    Mechanical Problems & Technical Chat
    Yes, I've suspected the ECU from the beginning but what I did to test it was get a heat gun and heat up the ECU to maybe 190 degrees Fahrenheit to see if I could cause/isolate the heat related problem. The car engine was cold when I did this and started just fine with a very hot ECU. I also took...
  7. 2007 Honda Civic EX Crank No Start

    Mechanical Problems & Technical Chat
    Thanks for the response! I'll look into that some more. I am not getting any immobilizer errors when this crank no start fault occurs and the fault goes away after the engine cools down. I've had to order new keys in the past and have them programmed. Before the new keys were programmed, I had...
  8. Civic 2008 Starter cranks but no ignition

    Mechanical Problems & Technical Chat
    Did you ever find a resolution on this? I'm experiencing the same issue. Crank but no start when hot.
  9. Crank but no start, CEL no codes

    Mechanical Problems & Technical Chat
    I am experiencing the very same thing. Did you find a resolution to this? Mine cranks but no start when hot
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