Rallye Engine Stop Light?

[GTI6BOY 29]

I dont know much about tu engines but we put a rallye engine in to my 1.2 for a bit more fun as it was free but when you put the engine under load ie: 70mph in 5th up a hill the water temp light starts to come on with the battery light.

 

any ideas

[swordfish210 20]

Check the plug going to the temp sender (in the top of the thermostat housing)

[pugdamo 111 2 Cars]

On the top of the thermostat housing theres 2 spade connectors,i have put these the wrong way round before which give funny results. Or possible earth on the gearbox problem??

[mickie 3]

would it not just be the water level being a bit low ? obviously going up a hill the water level is going to move away from the sensor, so bring the interior light on, or maybe not, aint had the engine together in ages

[GTI6BOY 29]

checked and cleaned the connectors and they are on the right way round.

 

water leval is ok

 

Only happens on the motorway at high speed and on sunday it came on for 20mins and did not go off till i came of the motoway?

[welshpug 1,661]

does the coolant temperature gauge work? (does the rallye have one?)

[GTI6BOY 29]

no gauge just a light which come on with the stop light

[welshpug 1,661]

sounds to me like the wrong pin of the 2 pin blue gauge/light sender/switch has been used on the 16v engine.

[GTI6BOY 29]

sorry i think there's some confusion here...16v?

 

i took a 1.3 rallye engine out of a yellow rallye and put it in my 1.2 runabout. everything is the same

[welshpug 1,661]

doh! would have been a 1360 cc (AKA 1.4) if it was a yellow one?

[Guest spanner87]

check that a small blue wire that connects to the starter motor is on and tightened up

[GTI6BOY 29]

What that effects the water temp light?

[Guest spanner87]

on my xs it made water temp light,hheat warning light and the stop light come on

[drmo 5]

on my xs it made water temp light,hheat warning light and the stop light come on

 

My brother has the same problem but the blue wire is okey,does anibody know awat else could be the problem?