i havent done this in a long time so i forgot..... so bare with me. and ive done as much research as i could

i have a plx wideband kit i bought in my other b20vtec car(which we arent even talking about right now) that i have w/ s300 hondata management. i liked the kit so much i bought for a new build/car(4 years later) but i didnt know that you needed the ecu management to run it straight to your ecu.

SO! say i keep the stock O2 sensor hooked up to the ecu, i put the wideband sensor in the header bung right before the collector... and just use the wideband as a gauge... and tune it with a safc2. will that work? i know its not the greatest of tuning but i doubt im really going to need to adjust much if anything at all.

should i put the stock O2 at the header and the wideband at the test pipe or vice versa?

also, i DO have an s300 in an ecu that i use for that other car. could i use the datalogging from that just to get my reading of the afr and make my alterations on the safc2 after i put the other ecu back in? or just take it to a dyno and have the afr print out done there and just adjust as given?

finally, which ecu should i use for this setup?
b20z w/jdm gsr cable trans
ls intake manifold w/hondata manifold spacer
act pro lite flywheel
hytech rep header
intake(ebay for now, may do a velocity stack/cold box setup or whale *****)
2.25" catback straight pipe to 2.5 vibrant axle back(plan to go all 2.5)

i have a p28 auto converted to manual, chipped p28, p28 w/s300 for my b20vtec, p72, p75. now i only mention the p28 auto/p72 bc i could always chip them.... i wouldnt know how to calibrate the chipped p28 i have or send a basemap into it. nor do i know who could do that locally

 

forty five views and nothing? come on guys. any help at all?

 

closest ecu would be P75 from LS integra


i have a innovative MTX-L and it has 2 outputs one full wideband and other narrowband output

if you using datalogging such as crome or freelog you can run the wideband signal through the ecu( calibrate)


or if you just gonna replace the stock o2 sensor then send a narrowband signal from your wideband controller to ecu but you have to wire up the o2 sensor heater because ecu looks for it also.

are you planning to add vtec later?

 

thank you for your response, but read my questions carefully. only one of them is answered.

at this point im trying to avoid having to get a datalogging program/chip.

what are you getting at with replacing it straight up? if its not gonna get its proper voltage and reading from the ecu whats the point? and everyone has said before that just doing that isnt going to work bc the ecu isnt going to be able to adjust afr

and no i have no plans for vtec on this motor, already have a b20v. i wouldnt mind putting a few pounds of boost in it with a small turbo for an extra little kick though(but thats far fetched)

 

i never used safc or plx wideband

mine has 2 analog outputs not sure if yours can be configured to output a narrowband signal. that will replace the stock O2 sensor

your first post is kinda hard to follow. ididnt understand what you asking besides what ecu is closest sorry...

 

thats bc i said a lot of stuff. hahaha

i just wanna know what its gonna take to run a wideband sensor while avoiding having to spend another 500-600 on chipping with an engine management program. id LIKE to run it straight to the ecu if i could and have it adjust itself accordingly but it doesnt seem like thats gonna work

i have an apexi safc2 that i can adjust afr. im almost tempted to just sell my plx kit for a innovate lc1 which is about the same price but it contains the datalogging capabilities... I BELIEVE.

 

500 for chipping?! I paid 399 for the ENTIRE Neptune RTP. You don't even need to do that. Have someone burn you a chip with O2 heater disabled and use it in your chipped ECU.
Chipping an ECU costs a few dollars

 

Or you can attach a stock O2 sensor for heating and use the narrowband emulated output from the wideband to feed the signal into the ECU. Tuck the stock sensor away somewhere.

 

I was talking about if i had to get hondata or neptune. i think it cost me 100 bucks to have my hondata installed on my other p28

o2 sensor for heating? tuck the sensor away? if i used the narrowband signal wouldnt it not read properly since its not getting the proper voltage? how would it read?

i am going to have 2 o2 bungs. one at the header and one at the test pipe. i could use both if i NEED to. what is the recommended order of them if i use both? which should be at the front? will the stock one burn off too quickly the closer it is?

 

I am confused. You have Hondata and you still want to use the stock sensor? Why? Your wideband outputs narrowband simulated.

 

i have hondata in another vehicles ecu

 

the stock ecu has input for O2 and has check circuit for O2 sensor heater

O2 needs to be at certain temperature in order to read proper signal. and also to heat up quicker at cold start

if the heater element does not check out with the ecu for whatever reason it will throw a code.

so if you only have one bunghole you put wideband in it and mount the stock sensor somewhere in the engine bay away from stuff so it stays hot and tells the ECU to stfu.


if you have 2 bungs just use the stock sensor for the ecu and run the wideband to SAFC

i think i got what you asking now lol

either way you do it the ecu will only see narrowband. regardless of what sensor you plug in it...

does safc have wideband input?( i never used one)


but since you have all the ecus there why not sell the SAFC and get that P75 chipped

the moates burner only costs like 80 bucks and lets you burn chips.
you said you can chip the ecu urself?

you can download a b20 stock basemap for free from pgmfi.org.
i think that a b20 basemap would be much better running than trying to mess with safc on the ecu that doesnt have correct maps for your engine
p75 is close but its still .2 liter difference.
plus with a chipped ecu you can still go get it dynotuned and have a dealer burn you a chip.
how much does safc cost anyway.

 

My point exactly. No need to **** around with two sensors then.

 

i couldnt find the b20z base map on pgmfi.

looks like the safc2 go for $250 online used pretty normally. i have the black one too which is limited edition. my intentions werent really to tune it completely with the safc2. i wanted a base map and then i was just gonna try and level things out since im gonna have intake, header, exhaust, and a different manifold and those are gonna lean me out a bit


http://wikitest.pgmfi.org/twiki/bin/...ary/O2InputMod

found this though. which only raises more questions. hahaha. by bumping the reading to 5v, will that allow the wideband to automatically tune itself with the ecu trying to adjust itself???

 

the 5 volt mod is so that you can use the full wideband output with RTP like crome or freelog

the ecu is not programmed to see anything except narrowband signal

only one is civic VX that has a wideband controller built in the ecu but its not chippable


5 volt mod just lets the RTP see the full 5 volt signal instead of 3.8

 

well i have a crome chipped in my ecu........ now whats that mean?

 

http://wikitest.pgmfi.org/twiki/bin/...efinitionCodes

which one is the b20z? i dont see it.

 

also check xenocron they have some free basemaps

you can request it on the forums i found few bins like that from people uploading them


check this page
http://www.moates.net/shop-by-vehicl...a-preobd2.html

and xenocron
see if your chip looks anything like they sell to identify what you have

it should say SST 512 something on the chip

you will need the BURN2 Chip Programmer to burn the chip
or see if anyone local has it so they can burn one for you to test it out.

 

i found a burner. i even found a b20 base map from smanagers update.... BUT... its for s300 hondata and crome wont open it. any ideas on what to do with that?

if push comes to shove i guess i could manually enter in each number/figure

i just wanna say you have been a huge help

 

hondata crome and neptune are all different systems
they use different values for each cell RPM and mbar)
so the numbers wont be same

i also see that alot of people are running stock LS p75 ecu with their b20 setups and are running good.(or so they say)


have you tried to load the b20 basemap on hondata ecu and run it to see it it runs good?


maybe theres a problem with the engine or sensors or something

im a noob at some things and there are few members here that helped me alot so i dont mind

once i acquire godlike abilities i will be telling people to noob search lol

 

yeah, ive read all over about people using the p75 base map but they also say its only to get it to the tuner so that they can add fuel from it being so lean. im already gonna have bolt ons on it right at the start up so its gonna be even more lean so idk what to do about that.

also, this motor isnt even installed yet, im just trying to get everything together before i get stuck in the middle of it all

 

You can run an external hardware that can translate Wideband signals to Narrowband signals that's probably the cheapest route to go. That or get a gauge that can translate the wideband to narrowband. Leave the signal connected and ditch the heater wires. Your ECU will throw a code for the O2 without the heater wires connected, but it should still run the same since its getting a signal for the O2 levels.

 

crome has the ability to disable the o2 heater. but i might just use both sensors if i cant get the ecu to read wideband properly. im prob gonna try the 5v mod and go from there

 

dont most widebands can be programmed to narrowband output?

 

but i want it to read full wideband afr. am i confused?