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Old 07-29-2015, 09:34 PM   #1 (permalink)
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Question Anyone added a second 02 heater circuit to p06/p28?

I was wondering if any of you have found a simple way of adding a switched heater circuit for a second o2 sensor? OBD1? I'm trying to find a simple way to add a second (heated) o2 for an aftermarket air/fuel ratio gauge, of course I want a true reading instead of seeing the lean/rich E.C.U. signal. I'm not to fond of burning a heater the entire time the car is running, like just splicing into a switched 12v circuit. And I'm too cheap to purchase a wideband setup. I have a gauge, bung, four wire sensor, and wire. Can the E.C.U. handle doubling up two sensors heater circuits together? I think if the heaters burn "all-the-time" while running, it will compromise the expected life of the sensor? Right? I am planning on wrapping the header...so staying hot shouldn't be an issue, but I would like a true reading and fast. Any suggestions? *Broke in the N.C. foothills.*
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Old 07-30-2015, 03:48 AM   #2 (permalink)
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if you are expecting a fast and accurate reading from a terribly installed and not correctly wired up narrow band o2 sensor then you are in for disappointment.

the amount of time and blowing up engines fucking around being ignorant to the fact
you could have bought a wideband ...

A wideband will help lots If you want to be a "tUn3r"

just don't buy chips pepsi and chocolat bars this week and you'll have enough saved up for stuff...

http://www.14point7.com/products/slc-oem
http://www.14point7.com/products/slc-oem
http://www.14point7.com/products/bosch-lsu-4-9

Last edited by robgoof; 07-30-2015 at 04:02 AM.
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Old 07-30-2015, 04:46 AM   #3 (permalink)
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Install a wideband
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Old 07-30-2015, 05:05 AM   #4 (permalink)
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I see your 14point7 and raise you one APSX

APSX D1-DIY Wideband Controller Board Module
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Old 07-30-2015, 06:27 AM   #5 (permalink)
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Quote:
Originally Posted by evo_lucian View Post
I see your 14point7 and raise you one APSX

APSX D1-DIY Wideband Controller Board Module

Having installed and used both I would use 14point7's first.
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ENMO.

An Emo car would cut its own tires and never get out of the garage.
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Old 07-30-2015, 06:39 AM   #6 (permalink)
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Having installed and used both I would use 14point7's first.
Care to elaborate ?
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Old 07-30-2015, 07:20 AM   #7 (permalink)
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BSPX setup was a little vague from the instructions, O2 warm up time is slower than 14point7 PP2, and they both use the sam Bosch 14017 O2.

PP2 has more options for inputs and outputs.

BSPX, you can get a nice little led display that you can mount in the instrument cluster.

There is some questioning of accuracy of BSPX due to the calibration is kind of janky.

I use the BSPX on a 1g Integra n/a application.

Use the 14point7 PP2 in the twincharge civic.

Only complaint I have was the PP2 had a fuse holder with not so good spring, fixed it by stretching the spring.

Also more discussion was done on both of these on RHMT and I know you are a member:
http://www.realhomemadeturbo.com/for...c,23042.0.html
http://www.realhomemadeturbo.com/for...c,22428.0.html
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An Emo car would cut its own tires and never get out of the garage.

Last edited by 92CXyD; 07-30-2015 at 07:24 AM.
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Old 07-30-2015, 08:18 AM   #8 (permalink)
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Thanks gonna take a look at these threads
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Old 07-30-2015, 09:33 AM   #9 (permalink)
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I for one want to see this "extended cab" EG
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Old 07-30-2015, 10:05 AM   #10 (permalink)
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After going through the linked threads and even the thread linked in the last one i still am yet to see any scientific or technical data to show one being better over the other. Alan made some bold claims about the inaccuracy of the APSX unit but provided no actual technical data to back it up.
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Old 07-30-2015, 10:49 AM   #11 (permalink)
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DIYEFI.org Forum - View topic - My open source Wideband Controller, SLC Free

To alan's test
DIYEFI.org Forum - View topic - Another Bad Wideband You Shouldn't Buy :-/

Results after test 3 BPSX units

http://forum.diyefi.org/viewtopic.php?p=35616#p35616
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ENMO.

An Emo car would cut its own tires and never get out of the garage.

Last edited by 92CXyD; 07-30-2015 at 10:51 AM.
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Old 07-30-2015, 01:43 PM   #12 (permalink)
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Quote:
Originally Posted by evo_lucian View Post
I see your 14point7 and raise you one APSX

APSX D1-DIY Wideband Controller Board Module
decent price .on the apsx

but my next wideband will be from 14point7, because canada!
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Old 07-30-2015, 09:01 PM   #13 (permalink)
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OP do you realize that you can take a narrowband gauge and tap into the single O2 sensor while your ecu is already reading it??

Regardless the AFR range you can target is rediculously narrow (hence the name!), and barely enough to tune a mild NA setup let alone a turbo setup. It will also not show you much meaningful info if you plan on checking your partial-throttle AFR's since your ECU swings it from lean to rich (to operate the catalyst properly) so far you won't be able to guess the average.
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Old 07-31-2015, 02:11 AM   #14 (permalink)
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Wonder why his products are still selling ? Seems like if it is as inaccurate as the test show then there would be a pile of motors over the internet with his name on it, or am I missing something ?
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Old 07-31-2015, 05:09 AM   #15 (permalink)
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The experience I have with BSPX, is they work ok with stock, low boost engine.

I would not put them in a 11k reving all motor, mild to high boost engines.

I do notice a delay in O2 heatup times, and when at full throttle then snap to closed, AFRs still read < 15.0:1 for about 1/2sec or so before it jumps up it display > 15:1.

Never had this with PPS setup, and the PPS setup mounted 24" or so from the turbo.
BSPX is mounted in stock location of ~ 12" from exhaust ports in my 1g Teg. (NA setup)

As far why are they selling, BPSX<14point7 PP2 in cost, both have good customer service with a nod To Alan @ 14point7 he is faster at answering questions. (in my experience)
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Quote:
ENMO.

An Emo car would cut its own tires and never get out of the garage.

Last edited by 92CXyD; 07-31-2015 at 11:39 AM.
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Old 07-31-2015, 11:26 AM   #16 (permalink)
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Thanks . is the delay reflected on data logs as well or just on the display ?
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Old 07-31-2015, 11:38 AM   #17 (permalink)
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Not sure have not Data log off of BSPX yet, but I have the analog output hook up to ecu.

ECU has made the car cleaner at idle because of the WB, the 1G Teg has a 3-stage vtec with a modified OBD 1 P72 clone in it.
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ENMO.

An Emo car would cut its own tires and never get out of the garage.
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Old 07-31-2015, 08:09 PM   #18 (permalink)
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OK. Just trying figure if its an issue with the gauge or the wideband as i am looking to replace my burnt up LC-1 with one of these
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Old 08-01-2015, 03:31 AM   #19 (permalink)
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i have BSPX and works just fine
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Old 08-01-2015, 08:57 AM   #20 (permalink)
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For the price, just get an Innovate MTX-L. Bosch LSU4.9 sensors are bad ass. And I vouch for Innovate products, my damn LC-1 is 9 years old and still going.
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