Johannadine Posted September 29, 2013 Share Posted September 29, 2013 I would like to find out why does my stepper motor when i drive and then i stop does it take 5 min before it closers and then only does my ideling drop. Quote Link to comment Share on other sites More sharing options...
Nigelw Posted September 29, 2013 Share Posted September 29, 2013 Could be that it needs removing and cleaning? Quote Link to comment Share on other sites More sharing options...
Johannadine Posted September 30, 2013 Author Share Posted September 30, 2013 The stepper motor is clean Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted September 30, 2013 Share Posted September 30, 2013 What about behind the plunger? Really hard to get in there without having it fully extended. You could also have a vacuum leak. Quote Link to comment Share on other sites More sharing options...
Johannadine Posted September 30, 2013 Author Share Posted September 30, 2013 Where is the plunger. and where could the vacuum leak be could it be my fuel pressure regulator vacuum pipe. Sorry very very stupid at this we still learning. Thanks Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted September 30, 2013 Share Posted September 30, 2013 Raise the revs of the engine, wait for a while, and then unplug the stepper motor, hopefully the stepper will then be fully closed, i.e. the plunger will be fully extended when you remove the stepper. Clean the shaft of the valve and refit. Vacuum leaks can be from anywhere, Fuel pressure regulator hose is a definite possibility, but also air flow meter hose, vacuum advance hose, servo hose, cruise control hoses, engine breather, and finally if you have had it apart recently, the plenum and trumpet base. Start with the hoses as they are least difficult to fix/repair, if nothing try squirting with a can of WD40 or something similar at various parts of the intake, if the revs rise you have found an air leak. Quote Link to comment Share on other sites More sharing options...
Johannadine Posted September 30, 2013 Author Share Posted September 30, 2013 When we bought the land rover. we sew they took the cruise control out. Quote Link to comment Share on other sites More sharing options...
teabag Posted September 30, 2013 Share Posted September 30, 2013 Cru When we bought the land rover. we sew they took the cruise control out. It has nothing with the idle speed any way. Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted September 30, 2013 Share Posted September 30, 2013 Cru It has nothing with the idle speed any way. If hoses or inlet manifold nipples haven't been plugged it would. Quote Link to comment Share on other sites More sharing options...
Johannadine Posted October 1, 2013 Author Share Posted October 1, 2013 Ok i did check they are all closed. i have checked everything the only thing i have left to check is THE plenum chamber will check if there is any leaks there. Quote Link to comment Share on other sites More sharing options...
Johannadine Posted October 1, 2013 Author Share Posted October 1, 2013 OK i checked there are no air leaks and when i put the land rover off the stepper motor is pulling back. and when i put it on it is pulsing. but it is still revs high when i stop at a stop street. I AM STARTING TO GIVE UP Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted October 1, 2013 Share Posted October 1, 2013 Have you set your 'base idle'? Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted October 1, 2013 Share Posted October 1, 2013 Been through the setup / troubleshooting guide in the technical archive? Quote Link to comment Share on other sites More sharing options...
Johannadine Posted October 1, 2013 Author Share Posted October 1, 2013 Have you set your 'base idle'? yes i have to 600 rpm. but then as soon as i connect the stepper motor again it rises to 1000 rpm and when i drive and i stop by a stop street it goes up to 2500 rpm and after 5 min it drops to 1000 rpm again. Quote Link to comment Share on other sites More sharing options...
teabag Posted October 1, 2013 Share Posted October 1, 2013 If hoses or inlet manifold nipples haven't been plugged it would. "If hoses or inlet manifold nipples haven't been plugged it would" Errrrr AGAIN... the Cruise Control System has nothing to do with the idle. Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted October 1, 2013 Share Posted October 1, 2013 Does the cruise system not have a connection to the inlet manifold then? Pretty sure it did on my RRC. Quote Link to comment Share on other sites More sharing options...
teabag Posted October 2, 2013 Share Posted October 2, 2013 CC is completely independant in a D1 with is electric vacuum pump positioned in the engine bay below the jack location. . Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted October 2, 2013 Share Posted October 2, 2013 Right, you could have just said that. Quote Link to comment Share on other sites More sharing options...
Johannadine Posted October 2, 2013 Author Share Posted October 2, 2013 Ok. what we do see is that the land rover used to be a automatic and they went and changed it to a manual. could it be the road speed input sensor. And where is the road speed input sensor located. thanks Quote Link to comment Share on other sites More sharing options...
Nigelw Posted October 3, 2013 Share Posted October 3, 2013 That would depend on what gearbox and speedo drive indicator system you have? I am lead to believe(which means I don't know this first hand!) that road speed was indicated by the transducer off the gearbox if it was a digital and not cable operated type, 200Tdi were cable from T-box to speedo head, and 300Tdi was cable to transducer and signal from transducer to CC ECU and then on to instrument binnacle. Oh and if you can write a description of your vehicle in your signature we may be able to help faster as opposed to guessing and then having to ask you for information to help us help you, just saying like Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted October 3, 2013 Share Posted October 3, 2013 Speedo/transducer drive is sort of a pass-through arrangement, you still have a cable coming up to the dash: http://landroverparts.roversnorth.com/Products.aspx?code=821&key=cat Quote Link to comment Share on other sites More sharing options...
Nigelw Posted October 3, 2013 Share Posted October 3, 2013 Speedo/transducer drive is sort of a pass-through arrangement, you still have a cable coming up to the dash: http://landroverparts.roversnorth.com/Products.aspx?code=821&key=cat Not on my 300Tdi series Disco, there is nowhere on the back of the dash panel to put a cable in. Possibly a 200Tdi would have used the same such through driven transducer like this one for use with the cruise control system? Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted October 3, 2013 Share Posted October 3, 2013 Well no not on every vehicle, was giving an example of 90/110/RRC as I knew it The one you link to is the same as for the 90/110 Quote Link to comment Share on other sites More sharing options...
teabag Posted October 3, 2013 Share Posted October 3, 2013 What is there to guess? with a post that states stepper motor. It must be a disco with a 3.9 engine so 1995MY onwards. Quote Link to comment Share on other sites More sharing options...
Nigelw Posted October 3, 2013 Share Posted October 3, 2013 Ah well bit of a caffudly dud when he has since asked where the speed sensor is. And although yes the 3.9 was from 95MY> this is a Land Rover we are discussing here I seen more mix and match on Land Rovers than any other POS automobileout there Still no idea where he is with his truck at this stage though Quote Link to comment Share on other sites More sharing options...
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