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Discussion Starter #1
Here is how to disable Assist/Regen when you don't need it, such as when you are trying so keep from depleting the battery charge on long hills, or when you don't want background charging, or when you are going downhill and don't want to regen.

Take the 2 wires from the clutch pedal, run them thru a toggle switch and you're done, now anytime you don't want to use assist or regen, just flip the switch and IMA is disabled. :idea:
 

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Discussion Starter #2
I forgot to mention that the clutch pedal switch is above the clutch pedal, it's all the way up, and kind of difficult to get the wiring done, but it's worth it. :D
 

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Calpod
Great find.
The MIMA home generator concept needs the opposite function, where the IMA is not disabled when you are stopped.
Can you do a test for me. If you are stopped, engine running, clutch in, the car disables IMA when the clutch is in. If you flip your new clutch switch so it thinks the clutch is out, can you get MIMA to charge the batteries?

I hope to have some time to get to the programming and try out the FAS relay and things this week, and it would be nice to know what I need to fool to get full charging at will with the car in neutral. The neutral switch may also need to be fooled, which you could try by putting the car in another gear(clutch still in but fooled into thinking it is not with your switch).
Thanks
Keep tinkering
Mike
 

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Calpod said:
Here is how to disable Assist/Regen when you don't need it, such as when you are trying so keep from depleting the battery charge on long hills, or when you don't want background charging, or when you are going downhill and don't want to regen.

Take the 2 wires from the clutch pedal, run them thru a toggle switch and you're done, now anytime you don't want to use assist or regen, just flip the switch and IMA is disabled. :idea:

Does this work if my car does not have MIMA?
 

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Discussion Starter #6
ncnightowl,

Yes, it will work even if you don't have MIMA.

(Sorry John) I had to mention the "M" word. :lol:
 

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Discussion Starter #8
I'll be looking for it Trekker,

By the way if anyone wants to try it all you have to do is disconnect the clutch switch located above the clutch pedal, take the car for a drive and decide if you like it, if you do, you have to install the switch to be able to turn if on and off. :idea:
 
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Hi Calpod:

___Best low cost mod have seen in years here at IC …

___Good Luck and nice job!

___Wayne R. Gerdes
 

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Calpod: No, I haven't installed the switch - still soldering away on the MIMA board. (With my usual good timing, the kit came in the mail just as I went into crunch mode on two projects at the same time.) This is the behavior of the stock system I'm talking about.

If I understand correctly, the theory behind this mod is that it doesn't do assist or regen when the clutch is pressed, right? But I think I do see regen when shifting. Maybe it's coming when the clutch reengages, though. I'm going to try to get away for a couple hours of skiing today, so I'll take a closer look if I can manage it.
 

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Discussion Starter #13
Has anybody installed the clutch switch to disable IMA? I know this feature would be very useful for people that drive up steep or long inclines, I remember someone on this forum living in Bakersfield and driving to LA every day, this mod would help our batteries last a lot longer.

I know Willie installed it on his Turbo Insight.
 

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IMA

Another use for this Mod is to shut off the IMA on " Bad Traction Days ".
Alot of regen braking isn't good on slick roads. ( Been there! ).

And if you're considering this Mod, a few more wires and this Mod can be combined with the FAS Mod.
 

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Hi, I just installed the clutch switch as described in this thread on my new 2006. It does disable regen, but unfortunately not assist. Maybe the software or hardware on 2006 model year cars is different. Any suggestions for an alternate to disable assist? I live on top of a steep hill and would really like to be able to turn it off.

-Mike
 

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I also installed this switch on my 2006. The only thing the switch does is disable any brake-pedal initiated regen. Assist is NOT disabled, neither is background charging, or forced charging.

Unfortunately, there doesn't seem to be any utility to this mod. The only think that's kind of nice is that when you go into Auto-Stop, you can flip the switch and take your foot off the clutch, but that's of dubious value because if you forget to flip the switch when you start up again, next time you come to a stop regen won't work. (which is very easy to do).

Too bad.
 

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Discussion Starter #17
I'd like to find out what changed on the 2006 model, it works great with mine, (2000) I know Willie has installed it on his, and he says it works fine.

Has anybody else has installed the switch?
 

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On my 2002 I also use either the clutch switch or MIMA Mode1 when I simply want to retain battery charge on an uphill. Sorry it doesn't seem to work on the 2006. Wifey is reluctant to let me mod her new car so I can't compare. BTW, the clutch switch is the key ingredient to FASing.

Infidel and mds2: what exactly are the responses both above and below 19mph?

Reviewing my 2000-2005 Electrical Manual, it shows no hardware changes to the clutch switch circuit. Anyone have a 2006 Electrical Manual to see if they played with it? If they haven't, then it looks like the ECM software has been modified.

This brings up the question: has anyone with this Clutch Switch mod taken the car in for the IMA warranty extension checkup and does it still work after they've 'upgraded' it?

I can't help but have a twinge of concern about new engineers at Honda messing with code that was designed many years ago ... you don't suppose they goofed? After all, if you push in the clutch (presumably releasing the gas pedal at the same time) you should not expect any Assist and thus it made sense to disable it (as in the old version) ... so why did they change it in their latest revision? Conversely, you'd think that Regen should still have been allowed to function (only to be inhibited below 19mph?) even if the engine is only idling (is that what it does now with the clutch pushed in?). Sorry, too many questions.

BTW, MIMA's LEDs sure let us see the disparity between the dashboard Regen indicator and what's really happening 8) - thanks again, Mike. JoeS.
 
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