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cel code 91 still on.

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Old 08-24-2010, 11:04 AM
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Default cel code 91 still on.

for starters i live in cali and i need to reff my car. i have a 96 hatch with a b16a2 with all 99-00 wiring. and got a 91 cel code on my check engine light. so i installed a ftp censor into my car hoping it would get rid of it... but it didnt. so im thinking its because i dont have the right coll canister. can any body confirm this please please please pleeease.

here is what my col canister looks like.
>
Old 08-24-2010, 05:48 PM
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Default Re: cel code 91 still on.

come on some one got to know...
Old 08-24-2010, 06:23 PM
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Default Re: cel code 91 still on.

your tank doesnt have the sensor, it was installed only on 99-00 civic chassis, your 99-00 si ecu is looking for a sensor that isnt there. Ive heard of people switching tanks. do some SEARCHING. google is amazing
Old 08-24-2010, 06:54 PM
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Default Re: cel code 91 still on.

I'm not sure if you read what I wrote... but quick recap. I have installed a ftp censor (fuel tank pressure censor) and recet the ecu and. Still cel code 91 pops up. Anybody else got some input for me.
Old 08-24-2010, 08:24 PM
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Default Re: cel code 91 still on.

just trick the ecu, thats wat i did and it never turn back on, heres the site
http://technet.ff-squad.com/code91.htm
Old 08-24-2010, 08:51 PM
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Default Re: cel code 91 still on.

that wont work. the ECU will eventually catches on and gets tired of the same volts.
Old 08-24-2010, 09:17 PM
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Default Re: cel code 91 still on.

nvm i got it. i do need to change the charcoal canister to a 99-00 si.
Old 08-25-2010, 11:52 AM
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Default Re: cel code 91 still on.

so what you do then, im giving you advise on getting it fix. i did minds last year and it still havent come on yet
Old 08-25-2010, 06:15 PM
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Default Re: cel code 91 still on.

alright ill do it. what 2 wires do i use for the grounds and what wire do i use for the positive. if you could post picks would be nice.
Old 08-25-2010, 07:29 PM
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Default Re: cel code 91 still on.

sorry no picture, but here is the ecu pinout for u
http://technet.ff-squad.com/wiring.obd2a.htm
Old 08-25-2010, 08:19 PM
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Default Re: cel code 91 still on.

sweet thanks.
Old 08-25-2010, 08:44 PM
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Default Re: cel code 91 still on.

Originally Posted by hazard2o9
sorry no picture, but here is the ecu pinout for u
http://technet.ff-squad.com/wiring.obd2a.htm
im going to change charcol canister tomo. if that dont work ill do it your way. im really not trying to be picky. i have to take my car to ref. so i need to make this as legit as possible.
Old 08-29-2010, 11:01 AM
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Default Re: cel code 91 still on.

changed the charcoal canister and it worked.
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