first off the fuel gauge reads incorrect/slow, tells me i've got more than what i have. (turning it off and on tells me correct reading)

I thought fine,, ive got a faulty fuel sender But now some of the warning indicators are randomly flashing at me briefly (only very briefly, the low coolant light and the "lights on" light). They only flash once or twice for a brief millisecond or two.

At the same time this started happening (about a week ago), i've had sluggish starts, it would chugg once or twice and then start kicking in as normal.

I've cleaned all the battery terminals up (which had alot of green gunk) and topped up the battery with some distilled. The earths are all good too.

I put coloured LEDS in the cluster but they have been running fine for months.

any hints. thanks AGain.