all my sensors are acting up, any idea?
09-29-2003, 12:28 PM
#1
1.0 BAR
Thread Starter
Join Date: Jan 2003
Posts: 375
all my sensors are acting up, any idea?
I have a 92 preldue with swapped in h23, with turbo, 5-7psi. aem rail, 450cc injectors, s-afc. the car runs good till I start to hit boost than than engine light comes on, than the cars run good till aboput 4000 rpm, than I have a lot of black smoke, it sputters really bad. I just put on a new o2 sensor like two days ago. so I check the ecu for codes this is what I got. 37-map sensor 41-o2sensor 7-TB sensor 12-egr 23-knock sensor. anybody have any idea on this? thanks ray
09-29-2003, 01:24 PM
#3
3.0 BAR
Join Date: Feb 2003
Posts: 9,089
Re:all my sensors are acting up, any idea?
no no no He is using the AFC hense doesnt need nor want a missing link or check valves. I think it has something to do with your afc settings.. what are they.. all the settings, fuel %'s, high/low throttle pos, sensors. everything, list them ALL.
make sure the sensor type is set to pressure and is 06/06.
make sure the sensor type is set to pressure and is 06/06.
09-29-2003, 01:53 PM
#4
1.0 BAR
Thread Starter
Join Date: Jan 2003
Posts: 375
Re:all my sensors are acting up, any idea?
I have no chech valve or missing link.
1 2 3 4 5 6 7 rpm
high 0 +1 +1 +1 +1 +1 +1
low 0 +1 +1 +1 +1 +1 +1 th-point lo 98 high 99
Hot wire 1 in, 1 out \
sensor check 1in: 2.8v. 2 in: .06v, thrt:0.44v
every thing else I left alone. as soon as I start to hit boost, engine light comes on. while engine light is on, and no matter how hard I'm on the gas at 4000 rpm the car sputters. and lots of black smoke. oh yea the pressure is the same as the hotwire 1 in 1 out. thanks
1 2 3 4 5 6 7 rpm
high 0 +1 +1 +1 +1 +1 +1
low 0 +1 +1 +1 +1 +1 +1 th-point lo 98 high 99
Hot wire 1 in, 1 out \
sensor check 1in: 2.8v. 2 in: .06v, thrt:0.44v
every thing else I left alone. as soon as I start to hit boost, engine light comes on. while engine light is on, and no matter how hard I'm on the gas at 4000 rpm the car sputters. and lots of black smoke. oh yea the pressure is the same as the hotwire 1 in 1 out. thanks
09-29-2003, 02:01 PM
#5
3.0 BAR
Join Date: Feb 2003
Posts: 9,089
Re:all my sensors are acting up, any idea?
those are weird settings..
shouldnt it be like...
rpm low hi
1k -37% -36%
2k -36% -36%
3k -35% -35%
4k -34% -34%
5k -34% -34%
etc...
something with percentages?? this is the Apexi S-AFC right??
shouldnt it be like...
rpm low hi
1k -37% -36%
2k -36% -36%
3k -35% -35%
4k -34% -34%
5k -34% -34%
etc...
something with percentages?? this is the Apexi S-AFC right??
09-29-2003, 02:07 PM
#7
3.0 BAR
Join Date: Feb 2003
Posts: 9,089
Re:all my sensors are acting up, any idea?
you have it at +1 %??!!?!?.
Im not trying to put you down, but do you know what those changes even do? +/- % ?? Before you take this any further you need to unnderstand why you make changes.
Im not trying to put you down, but do you know what those changes even do? +/- % ?? Before you take this any further you need to unnderstand why you make changes.
09-29-2003, 02:13 PM
#8
1.0 BAR
Thread Starter
Join Date: Jan 2003
Posts: 375
Re:all my sensors are acting up, any idea?
yea I know what it does, I know +1 should be right. cause before I swapped in a new motor. my turbo f22a I had it atrpm low hi
1k -37% -36%
2k -36% -36%
3k -35% -35%
4k -34% -34%
5k -34% -34% and the car ran great, now If I set it like that, the car slowly shuts off. like Iam over loading it with fuel. but If i keep it at 0 the car idles and runs fine until I hit boost. than thats when it run like ----.
1k -37% -36%
2k -36% -36%
3k -35% -35%
4k -34% -34%
5k -34% -34% and the car ran great, now If I set it like that, the car slowly shuts off. like Iam over loading it with fuel. but If i keep it at 0 the car idles and runs fine until I hit boost. than thats when it run like ----.
09-29-2003, 06:09 PM
#9
1.5 BAR
Join Date: Mar 2003
Posts: 778
Re:all my sensors are acting up, any idea?
hey bro, i dont really know about the rest of whats going on with your car, but i do know this... if you are running +1 you should be WAY rich. i cant see your car, so i dunno for sure. what i can tell you is that with that setting, your ecu is definitely seeing boost. the whole purpose of the hack is to run big injectors, and LOWER THE MAP VOLTAGE(ex:-36%) SO THAT YOUR ECU WILL NOT SEE BOOST. at the settings you are at, you are not taking advantage of the hack. in fact, at + or - only 1%, you might as well not even use a safc because the setting will be basically stock. try and get a a/f gauge to give you a ballpark figure of where you are at - i bet you are full rich at all times. good luck, hope that helps.
