1985 C4 sensors question
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Heel & Toe
Joined: Jan 2026
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1985 C4 sensors question
Hello, I need some help with the sensors on my 1985 c4 manual transmission 4+3, from my research all the sensors for the ECM on the car that control air and fuel mixture and how the cars runs are,
CTS
TPS
MAT
O2 sensor
MAF
Oil pressure switch
Knock sensor,
is there anymore that would control how the car runs? and is there one or two knock sensors on a l98 1985 c4, where would it be located I have read that it is by the starter, I have a dark blue wire with the pigtail style the knock sensor uses on a sensor in the passenger side head between the exhaust manifold could this be it? i am also looking for the oil temperature sensor to the gauge where that sensor would be located is it threaded into the oil pan? and a final question how does the stock volt meter wire run I need to either run a new one or find the old wire, any help would be appreciated thanks.
CTS
TPS
MAT
O2 sensor
MAF
Oil pressure switch
Knock sensor,
is there anymore that would control how the car runs? and is there one or two knock sensors on a l98 1985 c4, where would it be located I have read that it is by the starter, I have a dark blue wire with the pigtail style the knock sensor uses on a sensor in the passenger side head between the exhaust manifold could this be it? i am also looking for the oil temperature sensor to the gauge where that sensor would be located is it threaded into the oil pan? and a final question how does the stock volt meter wire run I need to either run a new one or find the old wire, any help would be appreciated thanks.
