Water Temperature Sensors
#1
Water Temperature Sensors
I've recently installed my freshly rebuilt engine. For the most part, everything is groovy… What a fun car to drive!
I've been having some lumpy idle issues once the engine has been at normal operating temps for about 15 or 20 minutes.
I'd like to eliminate water temperature sensors as a potential cause. My question is which of the two water temp sensors provides data to the ECU? My guess is that the sensor at the back of the engine only feeds the dashboard temp gauge…?
Or are both of 'em involved?
Many thanks for the help!
Cheers,
Tom
I've been having some lumpy idle issues once the engine has been at normal operating temps for about 15 or 20 minutes.
I'd like to eliminate water temperature sensors as a potential cause. My question is which of the two water temp sensors provides data to the ECU? My guess is that the sensor at the back of the engine only feeds the dashboard temp gauge…?
Or are both of 'em involved?
Many thanks for the help!
Cheers,
Tom
#2
RX-7 Bad Ass
iTrader: (55)
There are 2 sensors at the back of the water pump housing. Top one with two wires is the ECU input, the bottom 1-wire is the fan switch. Just below the oil filter is the 1-wire sensor for the gauge on the dash.
Dale
Dale
#5
RX-7 Bad Ass
iTrader: (55)
Nope. The ECU controls one fan input, the thermosensor controls one fan input, and the AC controls one fan input.
Dale
Dale
#6
Coolant temp gauge sensor wire color
Hello and sorry for dragging up an old thread... I am trying to get my temperature and oil pressure gauges working. Is anyone willing to help me figure out which wire it is that goes to the water sensor and what color it is? I would like to figure out where the oil one is as well and what color its is too.
Thanks in advance!!!
Jesse
Thanks in advance!!!
Jesse
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#10
half ass 2 or whole ass 1
iTrader: (114)
Hello and sorry for dragging up an old thread... I am trying to get my temperature and oil pressure gauges working. Is anyone willing to help me figure out which wire it is that goes to the water sensor and what color it is? I would like to figure out where the oil one is as well and what color its is too.
Thanks in advance!!!
Jesse
Thanks in advance!!!
Jesse
https://www.rx7club.com/3rd-generati...t-wire-915592/
look at those threads and the location of those wires is shown
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