matth555 10 Posted October 20, 2016 Hi, I'm looking for some help with regard to the coolant temp sensors for a 9a - can anyone help by letting me know what sensors theirs has for the temp gauge please? Mine doesn't currently work - it appears to have a small black topped sensor in the side of the head below the distributor with a green & black wire connected to it that I thought was the temp sensor. It also has a sensor on the corner of the head next to the earth point - this isn't plumbed into the cooling system, it's just screwed into a metal bracket and has a yellow and red wire connected to it - I'd assumed this was the warning light sender. Earthing the yellow/red wire to the block however moves the gauge up but earthing the green/black one does nothing? Any help, pictures etc anyone can offer would greatly appreciated. Cheers Matt Quote Share this post Link to post Share on other sites
VEEDUBBED 0 Posted October 21, 2016 Seems that the wrong wires have been fitted on the wrong sensors. The sensor at the back of the cylinder head, above the exhaust manifold is the oil temp. Sender that You check by using the onboard computer button MFA. The other sensor under the dist. Is the water temp. Sender for the instrument gauge. Just swap over the crossed wires and the gauge should work. Quote Share this post Link to post Share on other sites
matth555 10 Posted October 21, 2016 Ah - ok that figures. Did wonder having found some snippets of information it seemed to suggest the yellow wire should be the water temperature. I'll give that a try cheers. Quote Share this post Link to post Share on other sites
matth555 10 Posted October 22, 2016 Haha - when I went and dug a bit deeper I found veedubbed was right that oil temp was connected to water temp sensor only I then found the sensor the water temp wire was connected to was in fact the radiator fan run on sensor that was fitted on the wrong corner of the head!?? The mfa oil temp sender was hidden down the back of the block with nothing connected to it. Now they are all connected up correctly, surprise suprise it all works! It also answered what my next question was going to be about what the mystery brown and white cable near the metering head should be connected to! Thanks again for your help. Quote Share this post Link to post Share on other sites
VEEDUBBED 0 Posted October 22, 2016 No problem, Always a pleasure to help! Quote Share this post Link to post Share on other sites
