sharki 2 Posted August 15, 2014 Report Share Posted August 15, 2014 I have fitted a vr to my 8v. Now iv never owned a vr before. With my 8v when the engine was hot and fans kicked in they used to stay on. But with the vr as soon as i turn the ignition off they turn off but if i tur the ignition back on they start back up. The loom has 4 wires for the fans but i have a 3 pin fan so i have choped the main fat red/white (i think) and connected the other wires up. Can anyone shed any light. P.s i have a new nissens rad fitted with twin fans Link to post Share on other sites
Ashley Carter 8 Posted August 17, 2014 Report Share Posted August 17, 2014 I don't know the ins and outs of the wiring etc. mine do run for about 30 secs after turning it all off, I can tell you that. Sent from my iPhone using Tapatalk Link to post Share on other sites
lee060 3 Posted August 17, 2014 Report Share Posted August 17, 2014 Unplug the plug with the fine wires on your rad control unit it still do it?? Link to post Share on other sites
sharki 2 Posted August 18, 2014 Author Report Share Posted August 18, 2014 Unplug the plug with the fine wires on your rad control unit it still do it?? You want me to unplug the fan control unit and see if the fans kick in when the ignition is off? Link to post Share on other sites
lee060 3 Posted August 19, 2014 Report Share Posted August 19, 2014 Basically see if the fault still presists, when you unplug it. If it does try unplugging rad fan switch and see if it still does it Link to post Share on other sites
paceo 22 Posted August 19, 2014 Report Share Posted August 19, 2014 ive got a few working fan switches if you need them for £5 each :-) Link to post Share on other sites
sharki 2 Posted September 6, 2014 Author Report Share Posted September 6, 2014 (edited) Well i unplugged the plug from the fan mod but the car was cold so the fans didnt run. There isnt a problem with the switch. They work fine but turn off as soon as the ignition is turned off. Edited September 6, 2014 by sharki Link to post Share on other sites
VR6Pete 1,455 Posted September 7, 2014 Report Share Posted September 7, 2014 Yellow sensor on thermostat housing switches on after-run. Bridge the pins on opposite corners. (Can't remember which ones) will dig out my Bentley as it says in there. If you bridge and your fans come on, Likely to be the sensor, if not then FCM or another fault. Link to post Share on other sites
sharki 2 Posted September 8, 2014 Author Report Share Posted September 8, 2014 Could it be that im not using all 4 wires as i have 3 pin fan instead of the 4 pin fan. As im running twin fans. P.s the car the engine came from had ac i think. Link to post Share on other sites
sharki 2 Posted September 8, 2014 Author Report Share Posted September 8, 2014 I bridged the yellow plug sensor on the thermo and it made a click noise everytime i bridged the brown wire with the red/brown wire as said in the post below.Fans/pump after-run fault-checkingYou can use the following procedure to find out if your yellow temp sender is the cause of no after-run or not. This does not necessarily prove that the yellow temp sender is working, but it will prove if the circuitry that it controls is working or not.Turn ignition key on, then off againDisconnect the 4-pin connector from the yellow temperature sender switchBridge contacts B, D (brown/red and brown wire)i have a feeling its because 1 of the 4 wires isnt connected to anything. Im thinking about bridging it with another wire (same colour) VR6Pete 1 Link to post Share on other sites
sharki 2 Posted September 10, 2014 Author Report Share Posted September 10, 2014 Whats the worse that will happen if i have the fat white/red wire bridged with the slimmer white/red wire? Basicaly 2 wires on 1 connector? Link to post Share on other sites
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