111S temp guage not warming up

[tnoyes]

Hi guys

Apologies if this is covered elsewhere, but i've done a search and can't find the answer...

On my 111S, from time to time, the temperature guage never shows a reading. I notice this when I've been driving for a while so the engine must be warm. This gives two problems - one the rev limiter kicks in which is annoying when overtaking, and second I'm worried the engine won't know it's overheating and won't turn the fan on.

I've been to the local lotus specialist and they can't find the problem, although assured me that the engine won't boil dry. Does anyone have any ideas about how I can fix this?

Thanks
Tristan

[rfoster]

Have you tried a new temp sender? That'd be the first port of call. I had a dodgy one on a previous S1 - constantly showed a temp between 50-60 degrees. 2 minute job to change. By the part from Eliseparts just a few quid I think!

• Edit* there are 2 temp senders on the S1 - one provides the temp reading to the ECU (coolant temp sender, brown top) which is the important one - the ECU then uses this datd for correct running etc; and the stack temp sender (blue top) which provides the reading for the stack. So if the car seems to be running correctly, just change the blue sender.

Edited by rfoster on Friday 31st August 15:07

[tnoyes]

Thanks. No i've not tried that but I'll give it a go.

Tristan