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Traction Control Problems.

MrRx7s3
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MrRx7s3 Mentor

MrRx7s3

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Hey guys I have a r34 gtt... this morning when I turn the ignition on the slip light turns on... when I turn the car on it goes away but I can't turn traction control off... well I don't think it's even on as it let's the wheels spin but I can't manually turn it on or off... what could it be? Thanks for any help in advance.

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MrRx7s3 Mentor

MrRx7s3

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Forgot to mention that I took the throttle body off last night to change the rocker cover gaskets... although after a quick test drive last night it was fine... I checked the TCS motor and it's working fine... umm only other thing I can think of is the sensor on the other side of the motor, on my power fc I think it's under THRM what should the value be?

MrRx7s3 Mentor

MrRx7s3

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Well I've checked all the plugs everything is plugged in, it's reading the throttle motor sensor and tps fine, I'm farken stumped, traction control sometimes kicks in sometimes doesn't, slip light is on before turning the car on as soon as I turn the car on it goes away although when I press the traction control off button nothing happens at all.

Edited by MrRx7s3
Kinkstaah Grand Master

Kinkstaah

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Through my own fun and games (installing aftermarket TC) the ECU in the boot handles wheel speeds and all that jazz (which the ECU needs). If everything is well and truly plugged in, its time to be checking wiring, manuals, and wheel speed sensors.

Bust out that workshop manual and the 'ol multimeter and swear a lot.

MrRx7s3 Mentor

MrRx7s3

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I'm out with this stupid workshop manual lol... could that ecu be fried? I just remembered it done it before and then a few hours later it was completely fine... I plugged my standard ecu back in took it for a drive same thing... checked error codes nothing came up... tried grounding the number 4 to do the self diagnosis but that didn't work... dunno why some things pulling me to around the throttle body because it happened when I removed that sprayed a shit load of throttle body cleaner and put it back together.

Kinkstaah Grand Master

Kinkstaah

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Unlikely the ECU is fried - It is where the wheel speed sensors wire to (this also controls your ABS) as the ABS and TC ECU are the same thing in the boot.

Could be the car ECU but again, unlikely for it to mysteriously die.

Just going to have to over the thing from top to bottom. I'd wager if its bringing up lights... it's bringing up error codes... OR it thinks you're slipping and TC is cutting in when it isn't.. or one of the many other things that can f**k up :P

MrRx7s3 Mentor

MrRx7s3

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Not the car ecu I've ruled that one out... I've read that if it were the wheel sensors it would also bring up the abs light correct? If that's the case it's not it's only bringing up the slip light on its own with ignition on and when the car is on no warning lights are on what so ever.

MrRx7s3 Mentor

MrRx7s3

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Can someone do me a favour, I think I figured it out lol, if yous have a r34 gtt can you please do me a favour and turn your ignition on when ignition is on do your slip and tcf off lights stay on or do they turn off after a second or so.

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