Ive got a 300zx tt auto import and have had it for around 5 months. after a month the speedo started to play up, it would would stop and start again and also effects the power steering (not good when going hard in2 a corner) but recently its been gettin worse, ive checked the connectors a few times. Theres a little black box behind the speedo which i think maybe the delimiter, could it be this which maybe causing the probs or maybe the clocks themselfs? Ive got a feeling its a loose wire but cant seem to find it. Its abit of a nitemare esp with all the rozzers around and there bloody cameras.

 

Thanks

 

Hanksy

If it's been converted to mph using a black box, I've heard that they're notoriously unreliable and are prone to the symptoms you're seeing. :( (Although I think a speedo converter is usually mounted elsewhere)

 

Do a search on the forum along the lines of speedo/mph conversion and you'll find plenty of threads on the matter! :D

 

If that's the problem, you'll have to consider getting a new converter or personally I'd recommend either get a whole new set of UK clocks, or swap the resistor on the speedo module, which is what I'm doing.

Or it could be the speed sensor - the plastic cog wears out it's teeth after a while. A very common problem with Zeds, and fairly cheap to replace. Sensor informs the speed-sensitive power-steering, explaining the lumpiness.

 

Good luck,

Russ.

Thanks guys il let you know how i get on and it may help sumone else.

 

Cheerz

 

Hanksy

Is the speed sensor easy to replace?

 

Thanks

 

Hanksy

Is the speed sensor easy to replace?

 

Thanks

 

Hanksy

 

Don't know the details - but it's on the gearbox which says axle stands to me...

il butter up my m8 thats got a ramp, il start with the sensor plastic cog thingy and go from there.

 

Thanks

 

Hanksy

...... or swap the resistor on the speedo module, which is what I'm doing.

Hi Mark,

 

Did this resistor trick work?

If that's all you need to do then what's the point of the "black box"?

 

Graham.

emm not sure, im changing to a manual box hopefully this wk so i hope the sensor works fine in that.

 

Hanksy

hi , I've got exactly same symptons of loss of speedo reading and dodgy steering did anyone solve the problem??

 

Much appreciated ,

 

ta

 

Mike