Author Topic: Modified Accelerator Cable  (Read 1093 times)

Offline tmsmini

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Re: Modified Accelerator Cable
« Reply #75 on: May 22, 2020, 07:21:31 PM »
I added the pedal spring, but my back is not happy.
I will have to wait a few days to test as we are headed to my daughterís.
Unless I recover enough after dinner.
« Last Edit: May 22, 2020, 07:25:08 PM by tmsmini »

Offline MiniDave

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Re: Modified Accelerator Cable
« Reply #76 on: May 22, 2020, 08:17:11 PM »
While it seems like that would help if the weight of the pedal was holding it open, in the video you posted that really didn't seem to be the case.... but if it works then.......Yay!
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Offline tmsmini

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Re: Modified Accelerator Cable
« Reply #77 on: May 22, 2020, 09:03:48 PM »
Yes, I certainly donít understand the dynamics of what is happening.
I went for a 15 minute drive and no sticking at all. I need to a longer test, but it seems good.
A little more pedal pressure required that could be bothersome on a long trip, but I can adjust it a to a certain extent. I donít remember the MPI requiring as much pressure.

Now on to other things needing to be done before MMW!
« Last Edit: May 22, 2020, 09:05:58 PM by tmsmini »

Offline tmsmini

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Re: Modified Accelerator Cable
« Reply #78 on: Today at 02:04:03 PM »
Good news, after a 50 minute drive on surface streets with lots of stops and a few places to get up to 60 MPH, I had no sticking of the TB.

It also seems the seat of the pants "street" mapping worked pretty well, as in closed loop, most of the closed loop offsets were only 1 or 2 percentage points.
There are some flat spots and other issues at oddball fringe areas of the map.

I would like to adjust the idle up a little bit. It is idling well at 900 RPM which the 50 MM TB never did. I am concerned that in the Fall, there could be issues on cold mornings.
But that means recalibrating after making the adjustment.

Offline MiniDave

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Re: Modified Accelerator Cable
« Reply #79 on: Today at 02:33:02 PM »
You have to recalibrate just for changing the idle?

Doesn't it have a simple point and click setting in the software?
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Offline tmsmini

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Re: Modified Accelerator Cable
« Reply #80 on: Today at 03:51:16 PM »
No, it is an iterative process.
The TPS needs to know where zero is and you just changed it.
The fuel map is based on TPS and RPM, you just changed it.
You may also have moved the target AFR.

It is pretty straightforward, just a little back and forth.
Once you get it set, it is nice to not have to change it.
But if you try to fix things that are not necessarily broken, but just a little off...