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i-Map fuel controler

34793 Views 43 Replies 18 Participants Last post by  WV_Grom
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Guys,
I just wired in my Kitaco i-Map fuel controler, into the MSX-170.

So why the i-Map over the PCV?
Well, I'm not sure how many riders are going to have $350.00 for a PCV, with the auto tune, $600.00, thats a lot of money.
The i-Map is $125.00 from Webike.com, $25.00 shipping, and $20.00 for my wiring kit, to make it easy to install.
Don't get me wrong, I love my PCV on my $12,000 Ninja1000, but $600.00 for a $3000 bike, I'm not sure.

So, I wired it in, and ran it for the first time tonight. There are 4 maps, including #4 that is programable with the Kitaco special cable that I ordered over the weekend. The download from Kitaco is free. So, if all goes well, I should have a basic fuel map by Saturday/Sunday. It already runs richer than with just the Grom ECU alone.

Brian S


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IIRC the ECU won't notice the deleted o2 until it attempts to collect in which it'll throw code 21
Error Code 21?

OK,
So lets say it does go to error code 21? I'm reading the Honda shop manual, page 4-9 DTC Index, under 21-1, O2 sensor malfunction: bad wire, etc. The symptom/failsafe function column "engine operates normally".
I'm not stating anything here, I'm asking questions. Does that mean, that yes there is an error code, but who cares? Because it seems like it. At work, we manufacture a couple of our engines with EFI. If the O2 sensor is removed or the unit goes bad, the engine just goes into open loop, and the guy mowing grass with the ZTR, just keeps mowing, with a little less gas mileage. Am I missing something here? I could answer this question tonight, but it's 2'F out right now. It will be 15'F tomorrow, & 26'F Thursday. So I may have to wait a day or so to get an absolute answer. Where are the Honda Service Techs out there, when you need them???
Brian S
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Just another thought:
This O2 sensor reads .200 volts lean, and .800 volts rich, so I think I'm correct in saying that a .500 volt reading is no change. Yes, NO??? I understand that it's a on/off narrow band sensor. What if it's there, but never sends back a voltage reading? Isn't that a non event?
Brian
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i thought deleting the o2 sensor after a custom dyno map is always required and part of the main step to tricking the ecu to not take the o2 load and just run the main custom map?
Keep up the good work Brian ...I wanted to test with no o2 connected when I had my bazzaz but never got to it....if the limp mode/open loop map, Can be custom mapped and will hold the custom map I can live with check engine light on.

Please keep us updated..

Thank you..

Braap
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Just another thought:
This O2 sensor reads .200 volts lean, and .800 volts rich, so I think I'm correct in saying that a .500 volt reading is no change. Yes, NO??? I understand that it's a on/off narrow band sensor. What if it's there, but never sends back a voltage reading? Isn't that a non event?
Brian
Sounds logical. Is the stock ECM looking for a constantly alternating signal between .2 and .8v? Will it be happy with a steady .55v signal and not throw an error code?
Too bad no Honda (grom) techs visit this site to answer questions :(
I believe all these answers will be answered correctly eventually but right now it's a trial b error guessing game for pioneers in the grom game
lol did you guys just see the bazzaz update, you gotta get the o2 eliminator for their fuel controller to work properly. free of charge
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It seems as though Bazazz has released an o2 dummy for tuning that splices in, no word on cost but is a simple fix

didn't see FXC comment
I just spent about 30 min. on the Bazzaz site and could not find anything about it. I did read about how they do it on a Honda 1000RR. They have a resistor going to ground. SO, would someone that has purchased a Grom Bazzaz unit PLEASE ORDER ONE ASAP. All resistors have a paint code on them. It would take about 5 min. to figure out what they did. It's just a wire to ground, nothing more, with a resistor. Resistor are about $1.00. The problem would be solved.
Brian
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I just spent about 30 min. on the Bazzaz site and could not find anything about it. I did read about how they do it on a Honda 1000RR. They have a resistor going to ground. SO, would someone that has purchased a Grom Bazzaz unit PLEASE ORDER ONE ASAP. All resistors have a paint code on them. It would take about 5 min. to figure out what they did. It's just a wire to ground, nothing more, with a resistor. Resistor are about $1.00. The problem would be solved.
Brian
I think this is the bazzzaz TSB about their Grom unit:

http://www.hondagrom.net/forums/53-...letin-update-bazzaz-regarding-zfi-issues.html
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Drew
Just another thought:
This O2 sensor reads .200 volts lean, and .800 volts rich, so I think I'm correct in saying that a .500 volt reading is no change. Yes, NO??? I understand that it's a on/off narrow band sensor. What if it's there, but never sends back a voltage reading? Isn't that a non event?
Brian
If its a zironia O2 sensor then simply removing it would throw a code eventually, but i wouldn't want the EFI system going into permanent limp mode. The sensors output isn't just constant DC voltage between .2 and .8 volts, it also generates a sine wave that also needs to be generated. To do that all one really needs to do is build a frequency generator. I have a 555 chip left over from a EL wire driver I made last year and I have some schematics to build an o2 simulator. The nice thing about it is the voltage and frequency is adjustable so i can change it and see how AF ratio is affected in real time. When I get home from work Ill see if I have all the components and I believe I do, to make one.

If its a Titania sensor using titanium dioxide it may just need a simple resistor to trick or by grounding it. Instead of a voltage output they vary their resistance based upon the AF mixture.

It looks like the bazzaz is just a resistor or a simple grounding wire meaning it could be a Titania sensor, because its too small to be a freq gen, but im not sure yet. For anyone that doesnt have a Bazzaz ill see if I can come up with a means of making an O2 simulator that will work.

Sent from my iPad using HondaGrom.net
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This should be similar to the narrow band function on the Grom since most Narrow band sensors have similar output. I believe you would be correct to assume that .5 volts is a good starting point. As can be seen here there isn't much resolution, hence the narrow band.

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Does anyone have a English wiring diagram for the IMAP for the honda grom ?? I need help it's all in Japanese
Hey I noticed you said you wired your own IMAP. Do you have a English set of instruction you would be willing to share?
Hey I noticed you said you wired your own IMAP. Do you have a English set of instruction you would be willing to share?
I have instruction from the Lead 110 that I translated, honestly all I did was google the color symbols in Japanese and wrote on the instruction what each symbol was
I have instruction from the Lead 110 that I translated, honestly all I did was google the color symbols in Japanese and wrote on the instruction what each symbol was
Do you need the cord for it to run when you first install it??
I have instruction from the Lead 110 that I translated, honestly all I did was google the color symbols in Japanese and wrote on the instruction what each symbol was
Give me instructions please, I have one lead 110 with i-map box and I try to custom map with the pc
Give me instructions please, I have one lead 110 with i-map box and I try to custom map with the pc
I believe that is what the Aracer is doing for the closed loop circuit and open loop circuit. It is just a little more money for this system.

BrianS was one of the first to build a BBK kit 170cc with ported head that were flow tested. I was green at learning A/F mixture and mapping back then and still learning now.

He was the one that contacted Danial Crower for advice to build the BBK kit cams for 170cc and 125cc, and the only problem with the cam back then. it was a stock cam re-grounded and made ticking sound when running.
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