2007 Honda Odyssey ECU relearn

Tiny
RAYAN GHANEM
  • MEMBER
  • 2007 HONDA ODYSSEY
  • 3.5L
  • V6
  • FWD
  • AUTOMATIC
  • 87,000 MILES
My check engine light became on
My friend tells me if I remove the ECU connector for few hours it will turn off and all errors will be erased the program will reset
But I have erased errors by OBD 2 and the light turns on again
They tells me the ECU want's to be relearned
I'm in Lebanon and there is no original program to relearn the ECU
how can I reset the ECU at home?
Plz help me
I need a real solution for this problem
Thx for every one helps me
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Tuesday, December 23rd, 2014 AT 5:34 AM

13 Replies

Tiny
JOHNNYT73
  • EXPERT
What is the code you are getting? If the light keeps coming on then that tells you that you have an issue that needs to be resolved. Has nothing to with needing to relearn the computer. You erasing the code is you removing the memory from the computer. It coming back is telling you that there is an issue needing to be corrected. Do not unplug anything.
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+1
Tuesday, December 23rd, 2014 AT 6:15 AM
Tiny
RAYAN GHANEM
  • MEMBER
At the first time my check engine light comes on I unplugged the negative terminal of the battery, I repeated this procedure 2 times at the third I have diagnose it by the OBD2 it gives me
P0301 misfire1 cylinder1 detected the technician erased the error and then I bought NGK spark plugs and I replaced them all I see the old ones with a bad condition ( approx 86k miles ) then I have unplugged the negative battery terminal to turn off the light after that when he comes back on I get the car to another technician to diagnose the error with his OBD2 it gives
Again
Saved errors: misfire1 cylinder1 detected (new codes)
new codes: error1 2 3 4 5 6
He tells us this errors are the result of removing coils and he erased all errors
Then he tests the EGR it gives 0 and with acceleration gives (-/) (live data)
The next day the check engine light comes back on again and it stays on until know
What should I do? Plz help me and thank you for the first answer
Attention : the valves are always noisy should I adjust them?
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Tuesday, December 23rd, 2014 AT 9:23 AM
Tiny
JOHNNYT73
  • EXPERT
Yes, I am willing to bet you need to adjust your valves. There is a TSB on this motor for throwing random misfire codes, all cylinders misfiring. Etc. The reason is because the valves are too tight and need to be adjusted. I want to say the labor rate was like 3.5 hours. Sometmes you can try to decarb the intake with seafoam and it will help.
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Tuesday, December 23rd, 2014 AT 9:54 AM
Tiny
JOHNNYT73
  • EXPERT
You can try removing the EGR valve and cleaning it and the EGR ports of you can with some throttle body cleaner.
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Tuesday, December 23rd, 2014 AT 9:55 AM
Tiny
RAYAN GHANEM
  • MEMBER
Plz refer to which. TSB reference number?
Thank you for your help
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Tuesday, December 23rd, 2014 AT 11:19 AM
Tiny
JOHNNYT73
  • EXPERT
I cant find the TSB number, but you can google the issue. Its pretty common issue. These engines are supposed to get their valves adjusted every 80-100k miles. On cold start ups you may here a lot ticking that goes away and have a check engine light that states random misfires or specific misfires.
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Saturday, January 24th, 2015 AT 4:32 PM
Tiny
RAYAN GHANEM
  • MEMBER
Thank you very very very much

Thanks for your help
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Saturday, January 24th, 2015 AT 10:40 PM
Tiny
RAYAN GHANEM
  • MEMBER
If you want please give me your mobile number to contact you
Thanks
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Saturday, January 24th, 2015 AT 10:58 PM
Tiny
JOHNNYT73
  • EXPERT
Were you able to get the issue resolved? Sorry, but I am not going to hand out my number. You can contact me on here if you need anything. Thank you!
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Sunday, January 25th, 2015 AT 3:54 PM
Tiny
RAYAN GHANEM
  • MEMBER
Ok thank you
I'm sorry hope to work with you thank you very much
I'm waiting for the genuine parts
Thank you very much
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Thursday, January 29th, 2015 AT 8:59 PM
Tiny
RAYAN GHANEM
  • MEMBER
Hi my dear
i did the valve adjustment and I have cleaned the EGR port and the intake manifold as well
no more misfire and no more DTC
thank you very much for your help
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Saturday, March 7th, 2015 AT 10:00 AM
Tiny
JOHNNYT73
  • EXPERT
Awesome! Glad to hear!
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Sunday, March 8th, 2015 AT 8:28 AM
Tiny
RAYAN GHANEM
  • MEMBER
I have cleaned all the egr but I don't have cleaned the egr valve
By scanning the car on live data it gives me EGR ERR 99.2%
(EGR error 99.2%) it is the egr valve?
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Monday, March 9th, 2015 AT 8:18 AM

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