TCS Disconect When High Boost?

[ken sampson]

I am trying to figure out if my TCS needs to be connected or disconnected.
The light is on and will not go off that’s no problem. I do have it hooked up now and I have no problem with my power steering going out. I'm running the TEC-3 Computer and about 19 PSI on my SC.

I guess I’m wondering what the TCS is really doing. Will it rob HP. how does it correct wheel spin?

 

[01blacks4]

19psi? what did you do to your motor? piston? sleeve? rods?

thanks

marc

 

[nsxotic911]

With AEM, it pretty much gets disabled and it's a box behind the seats that can be removed afterwards. You have to custom program TCS in AEM if you want the functionality.

Plus, if your'e doing FI, any TCS will just get in the way and if you feel that you "need" it, then you shouldn't be doing that sort of FI.

With common sense, some practice/training, and knowing your limit, you should be able to handle the car just fine.

Hope that answers your question..

 

[ken sampson]

I did have it disconnected but it would set my power steering off after a few hard pulls. I guess I will unplug it and try again.
What does the TCS do? Cut fuel or timing?

 

[angus]

throttle.

 

[stuntman]

If you need the archaic NSX TCS, you shouldn't have a turbo.

emphasis on 'need'.

I'm pretty sure it cuts fuel aggressively, and is more of a straight-line wheel spin avoiding device rather than beneficial at controlling power-oversteer slides.

$0.02

 

[DDozier]

Hey Ken,

Download the service manual and follow the process for checking service codes, the TCS will store upto three codes to help you figure out what the failure is. In the 1991 service manual section 19-82 shows the procedure and the code table for the failure. If you have an OBD2 car I am not sure what you need to do, I do not understand all the fangled OBD2 stuff.

As I understand it the TCS controls a servo mounted to the throttle plate to simply close the throttle plate in the throttle body reducing power, but it does have several signals that feed into the ECU, the ECU may be doing something with this information but I am not sure if anyone really knows. I would not be surprised if the ECU pulls timing sort of like a knock event would, but you would need an OBD2 car and a scan tool to test and see if the timing map is altored by the TCS.

If you are using the TEC3 I would think that you would be in the same boat as the rest of us with an AEM. The OEM ECU is no longer controlling fuel or timing so the TCS if it is operable at all would only be able to control that throtle plate. I would think you would want to disable the TCS all together by unpluging the TCS control unit.

Dave

 

[ScienceofSpeed]

The factory traction control system is enabled by shutting the throttle plate. This is very adrupt, and there are better systems out there if you're looking to replace what you have now:
http://www.racelogic.co.uk/

If you are purely concerned about power, there would be no power loss if your traction light is not blinking (which means your wheels are spinning).

cheers,
-- Chris

 

[prestonmay]

Does turning the TCS off on LOW BOOST CTSC make any dIFF IN POWER?

 

[RON98]

wont make any difference unless your wheels slip and tsc kicks in. works buy closing throttle and not pulling fuel or working the brakes individually.

uaually the TCS gets you into more trouble since it cuts power when you need it most.

 

[SaberX]

The factory traction control system is enabled by shutting the throttle plate. This is very adrupt, and there are better systems out there if you're looking to replace what you have now:
http://www.racelogic.co.uk/

If you are purely concerned about power, there would be no power loss if your traction light is not blinking (which means your wheels are spinning).

cheers,
-- Chris

Chris - I did a search to see if anyone has had any success with the racelogic TCS. I didn't see any posts on NSX Prime about this. Has anyone used them?

 

[latzke]

The factory traction control system is enabled by shutting the throttle plate.

I thought TCS was implemented using fuel cut (like with the rev limiter), not by actuating the throttle. I'm not sure how the latter would be accomplished without throttle-by-wire (which, because of vintage, the majority of NSXs don't have).

 

[Briank]

I thought TCS was implemented using fuel cut (like with the rev limiter), not by actuating the throttle. I'm not sure how the latter would be accomplished without throttle-by-wire (which, because of vintage, the majority of NSXs don't have).

It's called a lost motion assy on the non DBW cars. :wink: See the service manual.:tongue: