mk2 golf not geting to running tempreture fan kicks in just over 1/4 way

[gasflow]

2.0 mk3 2E bottom end mk2 1.8 gti PB head had new thermostat wen head gasket was done still runs at a low tempreture any suggestions?

idle meter was unplugged wen plugged in it goes over 2000 revs is this normaly left unplugged in the conversion or is the idle meter screwd?

[mk2bal]

If the fan is coming on the water in the rad is hot, as that's where its sensored. The dash gauge is sensored on the black sensor on head outlet. You may have a duff reading dash coolant sensor and all else is fine, or you have an airlock or flow problem with hot rad and cold head. Does the lower hose stay cool until stat opens or does it heat up as quick as top hose (meaning stat isn't working). Does the small hose into top of coolant bottle produce a steady flow of water when engine running?

[rob.043]

As above, check the system is working as it should- but if your only basing this on the dash gauge, they do read low wih age. New black temp sensor may help

[gasflow]

had a look at all the sensors found the plastic is broken on the wires on the gauge temp sensor al try getin hold of a new sensor and plug thanks for the replys