toyman
100+ Post Club
Posts: 194
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« on: July 23, 2008, 05:44:14 PM » |
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I'll be removing a device called a recalibrator (similar to a speedcal) which is used to adjust the VSS signal for different gear/tires sizes. Have an AODE with 3:73 gears. Can anyone provide me with a calibration starting point value they are using with a similar setup. I'll adjust from there using my GPS.
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jammerjamming
EMS Poster Child
Posts: 11
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« Reply #1 on: August 07, 2008, 02:19:15 PM » |
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i will be doing this soon with the t56. i'll let you know what i find, and share my cal
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toyman
100+ Post Club
Posts: 194
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« Reply #2 on: August 08, 2008, 04:35:17 PM » |
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I'll be removing a device called a recalibrator (similar to a speedcal) which is used to adjust the VSS signal for different gear/tires sizes. Have an AODE with 3:73 gears. Can anyone provide me with a calibration starting point value they are using with a similar setup. I'll adjust from there using my GPS.
Just to let you know that I've gotten it all sorted out except for one issue. When I set the Minimum vehicle display speed, the set value is ignored and a signal is not sensed until 24 kph (15). Minor issue but it does have an impact on the AODE 1st gear shift point at slight throttle. If you have a fix for this please let me know. |
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toyman
100+ Post Club
Posts: 194
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« Reply #3 on: August 15, 2008, 04:22:54 PM » |
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Anyone??
Would really like the tranny to shift out of 1st before 24 kph under light throttle.
Richard
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toyman
100+ Post Club
Posts: 194
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« Reply #4 on: September 08, 2008, 08:35:27 PM » |
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Someone must have an answer. I've played with all the settings except for the Speed H sen below and the Speed L sen above values. I've turned off the Speed rising edge and that forced me to alter the VSS calibration value to double what it was with that box checked. Both VSS Filter and smooth need to be checked otherwise there is a lot of fluctuation in the reading. However, none of these changes altered the minimum reading of 24 kph. Is there an AOD-E user who has gotten the AEM-EMS to read a speed less than 24 kph (15 mph)?
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Blacksaleen95
Boost Addict
Global Moderator
500+ Post Club
Posts: 579
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« Reply #5 on: September 09, 2008, 02:50:08 AM » |
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have you tried adjusting the vss breakpoints yet?
If that doesn't work try giving Henry @ aem tech a call... he should be able to help...make sure you post his answer if you get one.
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Scott Warwick
100+ Post Club
Posts: 152
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« Reply #6 on: September 09, 2008, 07:34:10 AM » |
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How is the aode with the aem? I haven';t heard of anyone having success with that set up yet.
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Dale McPeters
300+ Post Club
Posts: 302
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« Reply #7 on: September 09, 2008, 12:45:17 PM » |
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How is the aode with the aem? I haven';t heard of anyone having success with that set up yet.
Me either although I have heard of a lot of them burning up the transmission......  |
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'93 Cobra AEM 30-1400....  '88GT T-Top Moates Ostrich |
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toyman
100+ Post Club
Posts: 194
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« Reply #8 on: September 09, 2008, 06:06:03 PM » |
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I've played with the VSS breakpoints in the low speed areas. Changed the 1st, 2nd and 3rd VSS breakpoints to 10, 16 & 26 kph. In the A/T Gear Desired Map I've changed the lower range to make the vehicle speed vs TPS Breakpoints % a little more rational and to eliminate shift points at steady state speeds. Some of the higher speed gear points were also changed. I had installed years ago a Transgo HD2 reprogramming shift kit so I don't know how this might be affecting shift points as seen by the ECU.
WOT set at 5500 rpm for all gears.
Any definition of how the AEM burns up the AOD-E.
None of these changes though seem to affect the 24 kph 1-2 shift point. The A/T gear table calls for a shift at 16 kph at slight throttle as does the Options VSS minimum display setting.
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Flr Power
300+ Post Club
Posts: 341
Get On The Gas!
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« Reply #9 on: December 18, 2008, 01:09:25 PM » |
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I had the chance to do an automatic last year.
We ended up burning the tranny. Too much slipping trying to go into converter lock.
It took 1000 miles to burn it before 4th gear would start slipping like crazy.
We could not get it to lock in overdrive no matter what we tried.
It seems the AEM EMS does not provide the right frequency and amplitude required to drive the solenoid. I think it is a hardware issue.
It did good for gear changes 1-2-3-4 but no converter lock up.
With the stock ECU, no problems.
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toyman
100+ Post Club
Posts: 194
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« Reply #10 on: December 18, 2008, 09:38:44 PM » |
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I had the chance to do an automatic last year.
We ended up burning the tranny. Too much slipping trying to go into converter lock.
It took 1000 miles to burn it before 4th gear would start slipping like crazy.
We could not get it to lock in overdrive no matter what we tried.
It seems the AEM EMS does not provide the right frequency and amplitude required to drive the solenoid. I think it is a hardware issue.
It did good for gear changes 1-2-3-4 but no converter lock up.
With the stock ECU, no problems.
How does one determine whether or not the converter is locking up? |
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toyman
100+ Post Club
Posts: 194
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« Reply #11 on: August 28, 2009, 06:11:17 PM » |
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I'll be removing a device called a recalibrator (similar to a speedcal) which is used to adjust the VSS signal for different gear/tires sizes. Have an AODE with 3:73 gears. Can anyone provide me with a calibration starting point value they are using with a similar setup. I'll adjust from there using my GPS.
Just to let you know that I've gotten it all sorted out except for one issue. When I set the Minimum vehicle display speed, the set value is ignored and a signal is not sensed until 24 kph (15). Minor issue but it does have an impact on the AODE 1st gear shift point at slight throttle. If you have a fix for this please let me know. I want to ressurect this old thread as I still haven't resolved the speed signal issue not being sensed by the AEM until I've reached 24 kph (15 mph). Today I discovered another issue and was wondering if it's also related. At speeds north of 220 kph the speedo needle stats to fluctuate full scale and above 230 it drops to 0. I'm wondering if it's an VSS sensor problem and can someone confirm that before I put a new one on. |
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Blue351
25+ Posts Club
Posts: 65
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« Reply #12 on: August 31, 2009, 07:43:15 AM » |
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I know it's a totally different setup but I have an '88 LX with a T5, and the lowest the VSS reads in AEMPro is 4mph.
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toyman
100+ Post Club
Posts: 194
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« Reply #13 on: August 31, 2009, 10:36:03 AM » |
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I know it's a totally different setup but I have an '88 LX with a T5, and the lowest the VSS reads in AEMPro is 4mph.
I would love to see a 4 mph reading. Right now AEMPro isn't picking up the signal until 16 mph. What version are you using, 1.11 or 1.19? |
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Blue351
25+ Posts Club
Posts: 65
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« Reply #14 on: August 31, 2009, 11:29:16 AM » |
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1.19
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AEM Performance Electronics Forum
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