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Honda City IDSI (Intelligence Dual Sequential Ignition) giving following trouble codes

Tiny
FAHDASLAM
  • MEMBER
  • 2006 HONDA CITY
  • 80,000 MILES
01-01 O2S(HO2S) (S1) Voltage low.

15-08 IGNITION OUTPUT SIGNAL FAILURE.

Car is knocking as accelerator is pressed on 3rd and onward gears. This car is having 8 plugs 2 for each cylinder. Please guide me about the codes that my car is displaying. Thanx
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Saturday, June 1st, 2013 AT 11:35 PM

9 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
The first code indicates a fault with the HO2S sensor (commonly known as O2 sensor). You would need to test the circuit and the sensor to see which is the cause of the problem.

As to the 2nd code, thses are not OBD-II codes so it is not possible to know which to test but it is something to do with the ignition and could be the crank sensor and/or its wiring that is at fault.
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Sunday, June 2nd, 2013 AT 12:17 AM
Tiny
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  • 27 POSTS
Can a bad crank sensor causes knocking? Crank sensor and Camshaft position sensor are same?
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Saturday, June 8th, 2013 AT 12:40 AM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Crank and cam are different sensors and they would throw their own code. Of course they would affect ignition timing.
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Saturday, June 8th, 2013 AT 5:30 AM
Tiny
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  • 27 POSTS
Thank you for your suggestion it will be helpful. Take care
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Saturday, June 8th, 2013 AT 12:44 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
You're welcome.

Have a nice day.
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Sunday, June 9th, 2013 AT 1:28 AM
Tiny
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  • MEMBER
  • 27 POSTS
Dear KHLow2008, how can I accurately know which sensor is throwing this code (15-08 IGNITION OUTPUT SIGNAL FAILURE.)? My mechanic cleaned crank sensor and now knocking has reduced, can a crank sensor improves upon cleaning? Thank you
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Thursday, June 13th, 2013 AT 4:45 AM
Tiny
KHLOW2008
  • MECHANIC
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I need to know the OBD-II code to get the correct information.
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Thursday, June 13th, 2013 AT 6:08 AM
Tiny
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  • MEMBER
  • 27 POSTS
This code is displayed by Honda scanner in trouble codes, how to get OBD2?
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Thursday, June 13th, 2013 AT 6:50 AM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
The scanner should have the ODB-II codes, that is the priority for scanners. Maybe you can try a generic scanner.

For Code 15, that is a fault with the igniter circuit but I believe your vehicle does not use any igniter and with individual coil packs, the firing is computer controlled. That is the reason I do not know which code to refer to to get the correct information.
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Thursday, June 13th, 2013 AT 11:12 AM

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