My wiring is with different colours:
1. black/brown
2. brown/black
3. black
4. to ground
5.
6.green/vio
megasquirt sends +5vdc along the 5vref wire to the tps unit,
and a return signal is sent to MS on the tps wire.
My question is, is it likely that the switch on that TPS unit will cause any wrong values/trouble ?
i want to keep the ECU harness as stock, so i dont want to cut that BRN/BLK wire ( i refer to the one on the picture )
throttle position closed switch
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If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0).
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Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0).
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
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357supermagnum
- MegaSquirt Newbie
- Posts: 13
- Joined: Sat Oct 24, 2009 6:47 pm
throttle position closed switch
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djandruczyk
- MegaSquirt Newbie
- Posts: 3
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- Location: Rochester, NY, U.S.A.
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Re: throttle position closed switch
357supermagnum wrote:My wiring is with different colours:
1. black/brown
2. brown/black
3. black
4. to ground
5.
6.green/vio
megasquirt sends +5vdc along the 5vref wire to the tps unit,
and a return signal is sent to MS on the tps wire.
My question is, is it likely that the switch on that TPS unit will cause any wrong values/trouble ?
i want to keep the ECU harness as stock, so i dont want to cut that BRN/BLK wire ( i refer to the one on the picture )
You should disconnect the brown/black that goes between the switch and tps, or mechanically modify the setup such that the switch is never closed, even at closed throttle.
The reason being that if the closed switch as it's wired now causes a transition/step in the tps value, the ecu in many cases will pick that up as a throttle blip and kick in accel enrichment.
David J. Andruczyk
MegaTunix author. The only non-java cross platform tuning software for MS-I/II hardware.
Where to get and how to install:
http://msefi.com/viewtopic.php?t=5228
http://sourceforge.net/projects/megatunix
MegaTunix author. The only non-java cross platform tuning software for MS-I/II hardware.
Where to get and how to install:
http://msefi.com/viewtopic.php?t=5228
http://sourceforge.net/projects/megatunix
-
357supermagnum
- MegaSquirt Newbie
- Posts: 13
- Joined: Sat Oct 24, 2009 6:47 pm
Re: throttle position closed switch
ill disconnect that wire then, or leave the green/vio unconnected. i am going to keep the original wiring loom compatible with the stock ECU.