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Multiple misfires with ODBII code 1399. What to check?

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Multiple misfires with ODBII code 1399. What to check?
Submitted: 9 years ago.Category: Honda
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Answered in 7 minutes by:
12/13/2008
Mechanic for Honda: Tech413, ASE Certified Technician replied 9 years ago
Tech413
Tech413, ASE Certified Technician
Category: Honda
Satisfied Customers: 469
Experience: 25 years auto, 19 years at the same Honda dealer. Ca Smog since 1986. Honda Gold Level, ASE master
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What is the year and model?

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Customer reply replied 9 years ago
I'm sorry , Its a 2002 accord 3.0 V6
Mechanic for Honda: Tech413, ASE Certified Technician replied 9 years ago
Does the engine run rough? who pulled the codes?
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Customer reply replied 9 years ago
Again I'm sorry I didn't believe I would receive any help I will be happy to pay the $15.00 for your help. I pulled the codes and got multiple misfires on all clys including the 1399 code and yes the engine runs rough. I went by today to have a look at the car, not sure how to test fuel pressure on this car but I removed the vacumn hose from the fuel pressure regulator and noticed no diffence in the roughness on the engine. I took out a couple of the plugs and they look fine,dry with a light carbon white-yellow) coating. Again I'm sorry who have had to email more than once.

Tom
Mechanic for Honda: Tech413, ASE Certified Technician replied 9 years ago
Hey Tom we can do this as often as necessary. I will ask that you make a deposit, if you have not allready. Your deposit is fully refundable until you hit "Accept". So do not hit the accept button until you are satisfied. The 1399 code comes up with multiple misfires and does not need to be diagnosed. What we need to do is find the reason for the misfires. How many miles do you have and when did the problem start?
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Customer reply replied 9 years ago
Hello again,
              The car has 130,000 and I am to understand the problem came about suddenly. How do I make the deposit?

Tom
Mechanic for Honda: Tech413, ASE Certified Technician replied 9 years ago
I am not sure nobodys asked before.
Tech413
Tech413, ASE Certified Technician
Category: Honda
Satisfied Customers: 469
Experience: 25 years auto, 19 years at the same Honda dealer. Ca Smog since 1986. Honda Gold Level, ASE master
Verified
Tech413 and 87 other Honda Specialists are ready to help you
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Customer reply replied 9 years ago
I have made the deposit.
Mechanic for Honda: Tech413, ASE Certified Technician replied 9 years ago
Ok we need to narrow down to what cylinders are misfiring. With the engine at idle unplug the ignition coils one at a time. Look to see how the idle is affected. Plug the coil back in and move to the next cylinder. We are looking for the cylinders that have no affect on idle.
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Mechanic for Honda: Tech413, ASE Certified Technician replied 9 years ago
I am going to be in and out all day, so there will be a delay in response times. Sorry about that normally my response would be almost instantaneous. My name is XXXXX XXXXX the way.
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Customer reply replied 9 years ago
Rob, its nice to meet you. The car is at my shop and I'm here. I'm going to get my son to pull the coil connections but, don't know how soon he will be able to, it shouldn't take too long. Thanks again for the help.

Tom
Mechanic for Honda: Tech413, ASE Certified Technician replied 9 years ago
Take as much time as you need. Let me know what you find.
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Customer reply replied 9 years ago
Rob, I finally got to check the coils on the 2002 accord. After disconnecting the coil leads #2 cylinder had no change after disconnecting it, I changed coils with another clyinder but, #2 is still the clyinder that has no change after disconnecting it. I won't be able to until the weekend but, I plan to do a compression test on #2. Any suggestions?
Mechanic for Honda: Tech413, ASE Certified Technician replied 9 years ago
Listen to the injector using a screwdriver as a stethoscope. Place the tip of the screwdriver at the base of the injector and the handle to your ear. Compare the sound to a good cylinder.
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Customer reply replied 9 years ago
I didn't think of that, will do this evening. Thanks.
Mechanic for Honda: Tech413, ASE Certified Technician replied 9 years ago
Please let me know.
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Customer reply replied 9 years ago
Rob, I went to the shop today to look at the car myself and much to my suprise the #2 fuel injector lead had somehow got cut in two I repaired the lead and the car runs fine. Thanks for your help, I have clicked accept to pay you for your time please let me know if it doesen't go through. Thanks again.

Tom
Mechanic for Honda: Tech413, ASE Certified Technician replied 9 years ago
Thank you
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Tech413
Tech413
Tech413, ASE Certified Technician
Category: Honda
Satisfied Customers: 469
469 Satisfied Customers
Experience: 25 years auto, 19 years at the same Honda dealer. Ca Smog since 1986. Honda Gold Level, ASE master

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