Increase efficiency by disabling electric assist in steering

[Guillermo]

This is for the traditionalists and the hard-core milleage freaks.
By removing the fuse of the electric assist power steering you will conserve battery power that would otherwise be used every time you turn the wheel. It also gives you better feel of what is going on between the road and the tires at higher speeds.

This is a very simple, quick and easy mod you can do in 20 seconds just before you drive to work tomorrow to feel it for yourself.

Open the hood.
Look for 40A power steering fuse as shown on fuse box decal.
Remove the 40A power steering fuse and store in your cup holder.
Drive the car and feel the real effort it takes to drive without power steering.

It's not that bad really, it feels firm during normal driving.
I first tried it an auto-x and it felt like I was wrestling a bear when turning fast at low speeds. But at higher speeds I had a better feel what the tires where doing. On the highway I drove home and it feel firm but nice.
I'll try it on and off a few times and decide what I prefer after a few days.

Tell me what you think after you try it.

[Corey872]

I have been curious about this myself. I have sticky 195/50 tires on my CRX and I've never really thought it turned that bad with no PS at all. I was curious why honda even put power steering on an 1800 lb car w/ those skinny tires. My best guess is that they were trying to downplay the notion that an ultra high mileage car had to be some sort of a stripped down, gutted tin can of a car.

Good tip. Just out of curiosity...anyone have an amp probe big enough that you could patch in place of the fuse to see what kind of current the steering is drawing and when? I would be curious if it cuts off at some speed or if it is always giving some assist.

[james]

Another thing I'm curious about: does the electric power steering add additional effort to the steering when it's not working, like hydraulic PS does?

[ext1jdh]

How bad is turning without the elec PS? Several years ago I had a Ford Aspire which weighed in about the same as the Insight and it didnt come with PS of any kind. Steering was a breeze in that simply due to weight. You're very correct about feeling the road though.

Hi Ext1jdh:

___There is a significant difference between “with” and “without” assist. To see for yourself, turn the Insight off at speed and feel the difference as you coast down to 0 mph without assist. As soon as she is shut down, you can feel the steering get heavy … like right now and even at speed without a steering correction. I use this method all the time when coasting into parking places at work from ~ 20 - 22 mph down to < 5 mph before applying the mechanicals in my parking spot of choice.

___Guillermo, I am interested as even under highway cruise, there are always corrections being made and it does have a draw. James question in regards to how much current is what I really want to know?

___Thanks for the tip as I might have to try this out.

___Wayne R. Gerdes
___Hunt Club Farms Landscaping Ltd.
___[email:2i46k7uv]Waynegerdes@earthlink.net[/email:2i46k7uv]

[b1shmu63]

Wayne, I'm sure that you would see a difference. After all at 40 amps this is one of the biggest fuses in the car. (40A X 13.6V = 544 watts) OK, I know it doesn't draw that continuously but evenn 100 Watts would make a difference to lean burn.

[Allnighte]

would this have any other effect on the car? (codes? extra wear? etc)

[Holicow]

Originally Posted by Allnighte

would this have any other effect on the car? (codes? extra wear? etc)

I can't think of any reason why it would.

Hey, my first car was a '64 Fairlane 500. 3-speed manual, no power assist brakes, and NO power steering. It had a steering wheel that looked like it came from a bus, but I could turn it. It wasn't too much fun in parking lots, but gave a good workout.

I have also wondered the reasoning behind power assist steering in this little car. I guess the steering ratio might not be as quick, if it were to be easily usable for everyone.

Hi Holicow:

___In my experience, the Insight’s steering input while shutdown is lighter then any other that I have coasted in after shutdown but it (the Insight) has much heavier steering when shutdown then any other vehicle I have ever driven when the ICE is powering the PS pump. It is not for the weak at heart (I meant arms/shoulders/back ) in an emergency situation at slower speeds imho. I am still very interested in the setup however and might just try it on Thursday afternoon for my next commute. I can feel (see on the FCD) the draw of hidden charging from many Autostop’s or key shutdowns and restarts and especially when taking off in the morning when I am down 2 bars from full on the SOC instead of just 1 like normal. Unfortunately these 2 scenarios probably have little to do with EPS draw given my 95% highway commute but more then likely warming up of the pack via SW instruction even in 60 + degree morning temperatures possibly? If there is a draw on the pack and light hidden charging has to bring you back to a target value, EPS is most certainly not helping our fuel economy by any means. This is just one of the reasons I would love an Insight with the entire list of Hybrid tech removed as in many situations, it is more of a hindrance then a help. Except for that quasi balance shaft trick and autostop itself that is

___Guillermo or anyone else, are you sure there are no other possible wear issues with this experiment? Allnighte has a good question lying before us and I just want to make sure is all …

___Good Luck

___Wayne R. Gerdes
___Hunt Club Farms Landscaping Ltd.
___[email:tmmpgjhk]Waynegerdes@earthlink.net[/email:tmmpgjhk]

[Guillermo]

No worries, just try it for yourself.
When the fuse is removed the light "EPS" goes on.
When the fuse is put back in everything goes back to normal and the "EPS" light turns off.

The reason Honda went to EPS instead of hydraulic is because it only draws power when you are turning. hydraulic system needs to stay pressurized so it's constantly using power even when driving in a straight line.

BMW Minis also have electric steering.