What is a problem my opel corsa lite 1.4 2006 model rev high when im stoping at the roboot or stop sign even if im not moving after i start rev go high to 200 and it drop down and up again

Question edited for clarity, 'year make model' first and in order.
Question moved from Computers and Internet to make model category. Those are the only things we need.

No fuse for the fuel level sensor, it is just low volts on the computer network to the ECM. But the following is related.

Relay 4 and Fuse 9 engine management, fuel pump relay

https://www.servicetutorials.com/2018/12/24/opel-vauxhall-corsa-c-fuses-and-relay-diagram/

https://www.google.com/search?q=auto+electrician+near+me

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There are two fuse boxes in the engine bay and the big one has THREE relays for the cooling fan R1, R2 and R3, although not all positions may be filled.

Opel (Vauxhall) Corsa C - fuse and relay

FuseAndRelay.com

https://fuseandrelay.com > opel > corsa-c













In our material, you will find a description of the Opel Corsa C fuse boxes and relays with diagrams and an example of execution. Let's highlight the fuse ...



BUT, it could also be the cooling temperature sensor.



https://www.google.com/search?q=2006+opel+corsa+lite+1.4i+cooling+fan+not+coming+on



Do you know how to test a relay? Do you have a multimeter and some wire?



The coolant temperature sensor can also be tested.

is the fan motor itself worn out
resistor ?
Noisy High Speed Radiator Fan Switch Repair Vauxhall Opel Temperature Fan...

There are many things that can cause this, each will set a fault code in the computer control module of the engine and drivetrain (both are fully electronically controlled). So you must have a fault code test run to read these codes and then diagnose the cause(s)

Have you checked the air bypass valve, it may be sticking open and causing a high idle speed.

Front right lower side is the crank sensor ,in line with the crankshaft ,could be this playing up although i have had many problems with this type of engine ,one problem is the computer bolted to the engine ,seem to suffer heat fatigue ,another problem i cannot explain is it just will not start and for this i fit a crank sensor from the earlier version with the toothed front pulley and support then cut the wires from the crank sensor and run them to the one at the front of the engine but they are polarised on the wires so if it doesnt start reverse the wires to the crank sensor ,Now no doubt iam wrong as ever but i do think that the crank becomes magnatised and its affecting the sensor so by moving it to the front pulley it eliminates this problem .

I'm not sure if you have an idle air control valve or not, but my mustang did the exact same thing.
I replaced the IAC and the problem was gone.

A similar thing happend to me turns out it was the idle rev cold switch thing>
basically the switch which provides more fuel and revs when the car is cold, so that when you start the car it doesnt just die off.
the switch itself is a bit mechanical and is perhaps jammed on the full on position. If it happens more when the car heats up. then it is this switch.

what you can do is start your car one cold morning and see how high the revs are, if its still high then its probablly not the switch

Check for engine vacuum leaks, that is the #1 cause of high idle speed.