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CEL code 14 only with the service jumper conected

Old 04-21-2012, 06:16 PM
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Default CEL code 14 only with the service jumper conected

hi guys.

today my car got a idble problem, it has fluctuating idle, with the engine running any cel but when connect the jumper for service the code 14 blink on my CEL, any idea?
Old 04-21-2012, 06:32 PM
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Default Re: CEL code 14 only with the service jumper conected

Reset the ecu see if its still there. If it is try cleaning your iacv. Search how
Old 04-21-2012, 07:17 PM
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Default Re: CEL code 14 only with the service jumper conected

Originally Posted by Dc4LsTeG
Reset the ecu see if its still there. If it is try cleaning your iacv. Search how
i already clean the iacv, i was checking the wire harnnes cuz, sometimes when the fluctuating idle happen moving the wires fluctuatig idle disappear, there is a way for wiring a paralel line to see the iacv behavior?
Old 04-21-2012, 07:27 PM
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Default Re: CEL code 14 only with the service jumper conected

You MUST provide all pertinent information about your car and engine. Failure to do so may result in thread closure.

Old 04-21-2012, 07:31 PM
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Default Re: CEL code 14 only with the service jumper conected

Originally Posted by RonJ@HT
You MUST provide all pertinent information about your car and engine. Failure to do so may result in thread closure.


oh sorry, my car is an Civic 95 ex Coupe, engine D15b Vtec (swap, original was D16z6), automatic P08 ECU
Old 04-21-2012, 07:33 PM
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Default Re: CEL code 14 only with the service jumper conected

Originally Posted by civicEX1995
i already clean the iacv, i was checking the wire harnnes cuz, sometimes when the fluctuating idle happen moving the wires fluctuatig idle disappear, there is a way for wiring a paralel line to see the iacv behavior?
So your saying when you mess with the wires it goes away?
Old 04-21-2012, 07:35 PM
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Default Re: CEL code 14 only with the service jumper conected

Originally Posted by civicEX1995
sometimes when the fluctuating idle happen moving the wires fluctuatig idle disappear
IACV wires?

Also, click the FITV link in my signature.
Old 04-21-2012, 07:39 PM
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Default Re: CEL code 14 only with the service jumper conected

Originally Posted by Dc4LsTeG
So your saying when you mess with the wires it goes away?
yes, sometimes goes away sometimes not
Old 04-21-2012, 07:45 PM
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Default Re: CEL code 14 only with the service jumper conected

Originally Posted by RonJ@HT
IACV wires?

Also, click the FITV link in my signature.
yes, IAVC Wires.

i do the service manual procedure for the code 14 and all seems to be good, but when start the engine idle start on 1200 rpm, and then slowly goes down below 500 rpm, when the engine is at operating temperature and disconnect the iacv nothing happen, but when connect it again you can hear the click sound, idle goes up for a moment and then goes down again.

if you rev up the engine and then let in idle again, the fluctuating idle appear
Old 04-21-2012, 07:48 PM
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Default Re: CEL code 14 only with the service jumper conected

Originally Posted by civicEX1995
yes, IAVC Wires.

i do the service manual procedure for the code 14 and all seems to be good, but when start the engine idle start on 1200 rpm, and then slowly goes down below 500 rpm, when the engine is at operating temperature and disconnect the iacv nothing happen, but when connect it again you can hear the click sound, idle goes up for a moment and then goes down again.

if you rev up the engine and then let in idle again, the fluctuating idle appear
Is the coolant level low in the radiator? Have you tried bleeding the cooling system?
----------

Bleeding the cooling system may take 20-30 minutes.

1) Park the car on an inclined driveway with the front end higher than the rear.

2) Push the dash heater lever/**** to MAX heat.

3) Follow the directions in the diagram below (hint: the bleed bolt is located where the upper radiator hose connects to the engine):

Old 04-21-2012, 07:53 PM
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Default Re: CEL code 14 only with the service jumper conected

Sounds like a wiring problem
Old 04-21-2012, 07:56 PM
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Default Re: CEL code 14 only with the service jumper conected

Originally Posted by RonJ@HT
Is the coolant level low in the radiator? Have you tried bleeding the cooling system?
----------

Bleeding the cooling system may take 20-30 minutes.

1) Park the car on an inclined driveway with the front end higher than the rear.

2) Push the dash heater lever/**** to MAX heat.

3) Follow the directions in the diagram below (hint: the bleed bolt is located where the upper radiator hose connects to the engine):

i do that yestarday, no air in the coolant system. now i was trying connect the pin A9 direct to the IACV with another connector and the idle is good, the only thing is when slowly press the gas the engine fails, sound like fluctuating but only when press the gas slightly
Old 04-21-2012, 10:05 PM
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Default Re: CEL code 14 only with the service jumper conected

Originally Posted by Dc4LsTeG
Sounds like a wiring problem

can i wire a paralel connection? if i can, how can i do it
Old 04-21-2012, 10:33 PM
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Default Re: CEL code 14 only with the service jumper conected

I just have to connect a pin to 12 volts and the other to a9?
Old 04-23-2012, 04:48 AM
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Default Re: CEL code 14 only with the service jumper conected

fluctuating idle solved, moving the TPS from 0.5v to 0.6, i dont know why
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