Low Water Level Light Coming On At High Rpm

[darrellspeed 1]

my low water level light comes on at high - 7500 rpm, is this normal?

[Anthony 1,003]

Is it a Phase 2 model that you have (ie black header tank with level sender in the bottom)?

 

If so, they seem to be quite susceptible to noise - usually from the HT side of the ignition - causing the light to come on falsely.

[GLPoomobile 958]

Built in shift light

[kyepan 291]

like.

[darrellspeed 1]

Is it a Phase 2 model that you have (ie black header tank with level sender in the bottom)?

 

If so, they seem to be quite susceptible to noise - usually from the HT side of the ignition - causing the light to come on falsely.

 

Yes its a phase 2 model, would it be better if i switched to a phase 1 type header tank?

 

Thanks

[Anthony 1,003]

It's not quite that easy unfortunately, as the wiring for the level senders is different between Phase 1/1.5 and Phase 2

 

Try another set of HT leads if you've got some, and try tying the level sensor wiring back as far as possible away from the engine - sometimes the combination of these two seems to solve it and stops the light coming on, but other times it does not.

[darrellspeed 1]

ok, new ht leads first then, the other lkoom is as far away as poss already, we've had a llok at fitting a phase 1 tank before - not because of this though it was cos i have a shiny alloy one only didnt fit it as it has to use the ph 1 sensor. to run the phase 1

 

I think i recall having to reomve 1 wire and move the middle to an outside terminal in the plug - maybe i'll have to use the shiny one after all

 

anyone got a decent phase 1 water level sensor haging about - the one i have is broken