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I have a 2009 Honda Accord with about 150k miles on it. Over the last couple weeks I noticed the crank time getting slightly longer then today it took a really long time before turning over and now the engine light came on. The car appears to run okay for now. I had the starter replaced at 100k and this behavior isn't the same as when that happened. I am going to borrow a code reader but what could cause this? I scanned the computer and got P0339 which is tied to the crankshaft position sensor.

Update: The battery is good. The starter is newish (50k old) but I really have no idea if it is OEM. The PCM fix is simple I just don't have jack stands/jack to do it. Just dropped it off at the garage and explained everything. Hopefully just the sensor and I can be on my way.

Update 2: The tech checked everything and it all looked good so he is going to do a relearn on the system. Of course they recommended a host of other things but I will go somewhere else for that and do some of it myself.

Update 3: Three weeks on and it starts right up. Seems the computer relearn seems to have done the trick. Thanks for the help.

  • How many times is it turning over before starting? The car will set that code during cranking after a few seconds of the car not starting. You could also verify crank sensor operation with a scantool. – Ben Apr 16 at 22:50
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Update from your engine code, here's a list of possible issues. Start with the cheap/free options like making sure your connections are clean and correct. Then monitoring the battery/starter performance. Then lastly replacing stuff. (start with the sensor)

  1. Bad Ground or positive wire connections
  2. Faulty starter motor – too much current draw
  3. Weak battery or parasitic draw pulling battery down overnight
  4. Faulty sensor or sensor wiring (Use OEM crankshaft sensors when replacing)
  5. Faulty PCM

I'm too new to comment, but i'm going to guess maybe your fuel pump is going by what you posted. That check engine code is going to know better than me. Let me know what code it throws. Could always check the fuel pressure, but just go for the engine light code first.

  • I got P0339 Crankshaft Position Sensor A Circuit Intermittent. – salisboss Apr 16 at 20:14
  • Heres a list of possibilities: ``` Bad Ground or positive wire connections Faulty starter motor – too much current draw Weak battery or parasitic draw pulling battery down overnight Faulty sensor or sensor wiring Faulty PCM Use OEM crankshaft sensors when replacing``` – Jeffyx Apr 16 at 20:33
  • Could it be a timing issuer? The guy at the garage seems obsessed with timing. – salisboss Apr 17 at 11:21
  • Nothing you described makes me believe its a timing issue. They probably just want your ca$h. – Jeffyx Apr 18 at 13:16
  • Yeah that's why I declined all the extra recommended work. The computer relearn seems to working. We'll – salisboss Apr 18 at 16:38

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