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View Full Version : Removing evap system

TokyoNights
07-13-2005, 01:18 PM
car is a 97 with a bone stock 98 ka
throwing evap codes p1447 p1448
How can I bypass the whole evap system? will it throw codes after?
S14DB
07-13-2005, 01:21 PM
I'll check the book when I get home to tell you your problem. It is possible but the stock ECU acts like a bitch when you do.
TokyoNights
07-13-2005, 02:12 PM
Thanks but I might have found it.
I had a hunch the canister vent control valve was the problem since there was a recall on them. I went to take it off the canister for testing but one bolt was stripped inside so I had to remove the whole canister but then every single bolt that holds it on broke, what a rust bucket. Anyways i just tested it by giving it 12v and blowing through the tube, air passes through with power or without so my guess is that its seized. Heres how i tested hopefully the right way
http://memimage.cardomain.net/member_images/7/web/607000-607999/607865_272_full.jp
Might as well replace the valve and see if it fixes it instead of removing everything if the ecu is going to be a bitch about it/ would you agree? I just need a inspection sticker since i allready been pulled over for it.
Never had these probs when the sr was in there :fruit:
projectRDM
07-13-2005, 03:48 PM
ECU won't care at all if it's there or not, there's nothing OBD that relates to engine control.

You will however have the CEL lit continuously until you take it out as well, and you won't pass either visual, plug-in, or dyno testing.
TokyoNights
07-13-2005, 08:40 PM
Well my CEL has been removed for years , i just use a actron obd2 scanner. I do however need to pass the plugin.

Nissan wants $110 for the valve, fuck that I took one off my brothers kouki which is converted to obd1 anyway.
I just drove a drive cycle and no codes yet.
Ill try for a sticker tomorrow just gotta throw stock exhaust and blinkers on it.
trsilvias13
07-13-2005, 10:56 PM
Well my CEL has been removed for years , i just use a actron obd2 scanner. I do however need to pass the plugin.

Nissan wants $110 for the valve, fuck that I took one off my brothers kouki which is converted to obd1 anyway.
I just drove a drive cycle and no codes yet.
Ill try for a sticker tomorrow just gotta throw stock exhaust and blinkers on it.


how hard it is to convert a obdII to obd I? i guess useing a 95 ecu and removing stuff?
TokyoNights
07-14-2005, 05:42 PM
s13 engine and harness conversion