water temp guage reads, quater when ignition and engine cold

[Big_M_]

temp guage and sender replaced, any idea's what the next step is, suspect wiring problem any idea's on where to start.

[Brianmoooore]

New one on me, bnut try a different SI board, or at least check the voltage across the batteries.

[Big_M_]

cheers for the tip, what volts should i be looking for across the batteries, if it's the si board should the petrol guage be effected too

[Brianmoooore]

Fuel gauge is a simple circuit off the sender in the tank. Any odd readings from the fuel gauge, caused by the cluster rather than the sender or wiring, must be a problem with the cluster/gauge earthing or the 12V green/white supply to the cluster.

[Brianmoooore]

Only answered half the question! Batteries are 1.2V each if NiCd, or 3V each if Lithium.

[Big_M_]

Thanks Brian, as you correctly suggested the SI board was the problem, stuck another one in this evening and hey presto all is well. thanks again for all the gen, problem sorted.