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R34 GTT Intermittent Clocks

Afraidknot

By Afraidknot,
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Afraidknot

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Looking for a bit of advice for my 98 manual R34 GTT, I keep having the speedometer and rev counter drop to zero followed by the TCS, Slip and CEL light up. I've recently upgraded to a nistune ECU and can see I'm getting the speed sensor code. The issue is intermittent and when driving the clocks return to normal or drop at any time.

 

I've replaced the sensor with an OEM part and fresh box oil with no success in getting rid of the problem.

 

Could it be that in disabling the speed limiter within nistune will have caused this issue? Anywhere else I should look?

 

It's been fine this past week in the warmer weather but now it's cooled down a tad the issue has returned.

 

Any help would be appreciated!

 

Thanks!

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GTSBoy Grand Master

GTSBoy

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On 7/28/2021 at 11:13 PM, Afraidknot said:

I've replaced the sensor with an OEM part and fresh box oil with no success in getting rid of the problem.

Wouldn't be the sensor. It's clearly a power issue at the dash. There is no power involved in the speed sensor - it generates its own power.

On 7/28/2021 at 11:13 PM, Afraidknot said:

Could it be that in disabling the speed limiter within nistune will have caused this issue?

No.

On 7/28/2021 at 11:13 PM, Afraidknot said:

Anywhere else I should look?

It's a wiring/connector/fuse problem. Get the wiring diagram, look for the common power or earth that could cause all these things to shit themselves at the same time.

Afraidknot Newbie

Afraidknot

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On 29/07/2021 at 1:12 PM, GTSBoy said:

Wouldn't be the sensor. It's clearly a power issue at the dash. There is no power involved in the speed sensor - it generates its own power.

No.

It's a wiring/connector/fuse problem. Get the wiring diagram, look for the common power or earth that could cause all these things to shit themselves at the same time.

Would it be worth me checking the back of the dash in that case? Take that out and check the connections? As well as checking for the ground?

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