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Old Aug 28, 2016, 11:37 PM
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Clutch switch LC vs NLTS

Got a JDM Evo9 RS, I previously tuned it using a V7 (88580714) but I never got launch control to work. The car seems to have an oem clutch switch but disconnected. I will connect the switch the pin # 88 & hopefully LC would work. This oem switch is the type that only works if the clutch pedal is fully depressed so I wonder if it would work for NLTS as well? Should I install a different type switch, a one that work when the pedal is slightly depressed?
Old Aug 30, 2016, 03:59 AM
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from memory some evo9's have two clutch switches,

one @ top of pedal that is normally pushed, and one at bottom of pedal

i was pretty sure the bottom one was used to stop people from starting the car without having foot on clutch...

check the top one?
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Old Aug 30, 2016, 08:13 AM
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Originally Posted by tephra
from memory some evo9's have two clutch switches,

one @ top of pedal that is normally pushed, and one at bottom of pedal

i was pretty sure the bottom one was used to stop people from starting the car without having foot on clutch...

check the top one?
An answer from the great Tephra! I wish I had asked a more important question

Yes the one I have is the bottom one, I think I'm going to install a different switch on top, but would one switch activate both LC & NLTS? What's the correct ECU pin#?
Old Aug 30, 2016, 04:24 PM
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haha

well im pretty sure the AUDM 9's didn't have a bottom clutch switch, at least we didn't need to push the clutch in to let the motor crank.

so i assume that the top clutch switch does stationary rev limitter, which i guess you call LC

no idea on pin im afraid, but if your lucky you should have a plug up under the dash just waiting to be connected
Old Aug 30, 2016, 04:46 PM
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I thought the top clutch switch was only for NLTS, and launch maps were enabled by being below a certain speed...? I actually remember testing the launch maps in my car by just sitting still, just using the brakes to hold the car still. I was always able to test my launch maps as long as the car was sitting still. No need to depress the clutch.
Old Aug 30, 2016, 09:20 PM
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Mine is the same way. Clutch switch is only to activate NLTS. Launch maps work off vehicle speed.
Old Sep 5, 2016, 05:15 AM
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Originally Posted by Macaroni
Mine is the same way. Clutch switch is only to activate NLTS. Launch maps work off vehicle speed.
Correct , top switch is for nlts
Old Apr 4, 2022, 10:09 PM
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Only pin 88 in 3 plug ecu?

Originally Posted by todd6027
Correct , top switch is for nlts
My JDM 8 gsr did not come with a top clutch switch. Wired it into pin 88 in the 3 plug ecu. Doesnt seem to enable NLTS even though I have enabled it in the rom. Any other way to test if the clutch switch is working?
Old Apr 5, 2022, 09:38 AM
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Try a V5 Tephra rom, on my car NLTS did not work with V7, tried V5 and it works
Old Apr 9, 2022, 05:25 PM
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Originally Posted by audiofan
Try a V5 Tephra rom, on my car NLTS did not work with V7, tried V5 and it works
I'll try a v5. But Hyperdisorder had managed to successfully get it running on the 9627 v7 rom. I'll try hitting him up
Old May 2, 2022, 09:24 AM
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Originally Posted by aqeelrizni
I'll try a v5. But Hyperdisorder had managed to successfully get it running on the 9627 v7 rom. I'll try hitting him up
NLTS worked on my evo 8 and two other 8s in my area. All 3 are JDM on the 9653 v7 rom.
Old May 16, 2022, 02:04 AM
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Guys, I am running a Evo 5 with a Evo 7 ECU via a Tephra V7 (90550001), Kindly help me on the below 2 issues:

-> NLTS is not working
- If turned "on" I am hitting a weird rpm cut at 5-6K RPM, car work fine if NLTS is turned off
- Have wired the grounded clutch switch wire to pin 43 of the ECU
-> Valet does not work on fresh ignition
- If valet function is turned on for fresh ignition the car is always on the set rpm limit(valet) unable to get out
- Valet function work fine if refers on fresh ignition is not tuned on

Pls feel free to ping me at sharewithraj at hotmail.com
Old May 16, 2022, 02:21 AM
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Originally Posted by I<3myevo6
Guys, I am running a Evo 5 with a Evo 7 ECU via a Tephra V7 (90550001), Kindly help me on the below 2 issues:

-> NLTS is not working
- If turned "on" I am hitting a weird rpm cut at 5-6K RPM, car work fine if NLTS is turned off
- Have wired the grounded clutch switch wire to pin 43 of the ECU
-> Valet does not work on fresh ignition
- If valet function is turned on for fresh ignition the car is always on the set rpm limit(valet) unable to get out
- Valet function work fine if refers on fresh ignition is not tuned on

Pls feel free to ping me at sharewithraj at hotmail.com
I've had a client Evo 4 with Evo 7 ECU. It had the same rom as you but it was very buggy so I switched him over to 96530706 v7. It's been working well ever since so you can try that.
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Old May 16, 2022, 02:48 AM
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Thanks for the Response, When you get time can you pls share the files to my email? sharewithraj at hotmail dot com
Old May 16, 2022, 02:51 AM
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Sure
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