Ok this is a new one on me. Mostly the PS works without any probs and car drives fine, Speedo works, It sometimes just stops working while driving making the steering a bit interesting. Any idea's ??? . Fluid level is fine and the belts tight. Car was layed up for 2 years.

 

Craig

i have same prob with mine!

 

connections to solenoid under rack can get damp or wires get a bit dodgy on solenoid causing signal to drop off temp

 

power steering is speed operated, it is soft bellow a set speed poss 60mph and harder after that speed. if the speed sender in the gearbox or connecter to it looses signal the speedo will trip out. if the power steering ecu doesent get a signal from speed sender for a certain period it turns steering off. also when you go above/bellow the steering change speed ie 60mph ish if you have no speed signal at this time the power steering will stay in its current mode (hard or soft) untill you go above or bellow this speed again to change mode, assuming you have a signal at this point from the sender in box.

 

its one of those things which is hard o put your finger on, it will be either :

 

solenoid (£800+vat new nissan/£25 second hand zworld)

connection to solenoid (any sealed 2 pin connector)

speed sender £160 new

connection to speed sender (male and female sealed connector)

ps ecu (£40 second hand zedworld)

 

trouble is you cant drive about with a voltage meter on the sender untill it happens or on solenoid etc..

 

i just put up with it

 

or you could change the lot!!!!

 

if its electric on a zed it dont work!!!

probably a bad connection on the speed sensor. there have been a few posts lately with speend sensor related problems after the car being layed up for a while.

Where is the speed sensor located? on the gearbox??

 

Craig

Where is the speed sensor located? on the gearbox??

 

Craig

 

Yes it's a small barrel shaped thingy about 1.5" in diameter that plugs into the side of the gearbox.

You can get to it from underneath.

Worth checking the connections and removing it for a clean as they can collect bits from the box.

They do wear out though so probably needs replacing.

i just got a n/a one from mike feeney (mjp) delivered dam fast in couple of days!!mjp autos in traders section mate.

Ok this is a new one on me. Mostly the PS works without any probs and car drives fine, Speedo works, It sometimes just stops working while driving making the steering a bit interesting. Any idea's ??? . Fluid level is fine and the belts tight. Car was layed up for 2 years.

 

Craig

 

 

When this happened to mine it turned out to be the universal jont on the steering rack

Thanks SRRAE I'll check it out. But It realy feels like it's somthing to do with the PAS most of the time the cars fine then the steering refuses to center without mega effort from me.

theres a hicas diagnostic you can do, it will tell you the crack!

How's that done ?? I know about the 5 turns and the brake pedal trick

i thats the one i meant. it gives you codes. its most likely the the speed sensor though.

 

http://www.ttzd.com/tech/hicastech.html

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