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My diesel revs up without me touching accellerator the cold / hot dial is jumping up and down i have to use clutch to control car its a 2001 diesel D4D
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turn idle screw down. this car may have an electric or vacume controlled idle. get a new motor for it. look on the throttle plate to make sure the cables are on correctly
We do not have wiring diagrams here. The material is copy protected and not free to share online. You can buy access and download the factroy diagrams here, you can also buy the factory repair manuls used here.
unplug pos.batt. cable ,,touch to negative cable. wait 17 seconds reinstall Cable..
this resets computer to default settings....
Cold start engine without pressing on accellerator,, computor will relearn and reset...
could be a dirty injector nozzle,try redexe 1can to 1/2 tank diesel.
for a start. if it clears then great. if not get back.
alternatively try the cold start........
golfs coldstart system works when you open door/shut door/put key in hole and turn on (in that order)if you delay puting belt on for longer than say 30 secs the coils go cold,hence poor starting.if engine labours after cold start try using (really)one gallon of petrol in tank to clean injectors.
british army put petrol (30%)in diesel tanks of challenger tanks in arctic
to stop fuel freezing.....most parts replacement jockeys in garages will say if you put diesel in tank it will have to flushed out.lot of bollocks.
trust me.have put petrol in by mistake loads of times,only get hot start
problems if you put in too much.
Maybe more info would be helpful, like gas, diesel, engine size, trans, cold, hot, morning first start,idle, driving down the road, accellerating?, coasting????????what you have checked and your results of those checks. Check eng light on? if so, codes?
Try changing your idle control valve or stepper motor which is the same thing.try cleaning it first before buying a new one,this could be done with caburetter cleaner, let dry before replacing,hope this is helping ty.
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