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Hello 🙂
On this 95 OBD1 you must ground terminal K. Not B as it is in most aldl.. And i think that why most code readers will not work. And i not belive you find one cheap reader that will work.. Tech2 or some Snapon scanners, and other pro scanner will do..
But you will read codes when jump K and A terminal.Hello 🙂
Resistance emty around 20 Ohm, and full around 150 Ohm.
Wire color from sending unit til gauge are yellow/white. Black are ground. Brown/Pink (or dark green/yellow) are fuel pump power.I also think wrong relay as cap269 explain verry vell.. 🙂
U could use : Standard RY-46 FP relay, and Standard RY-71 EEC relay..
If you use a regular relay on both, u change socket for relays?So you have 12v in to relay on yellow wire even when relay is activate? same time red wire out of relay is 2,7V?
if thats the case, someting wrong with that relay..
dont know hat that haynes meen with 4-6V.. But it should be battery voltage..Hello 🙂
Here you have wiring diagram, in case you havent..
So you have battery volt at yellow wire inn to EEC relay, and only 2,7 V out on the red wire?Hello 🙂
Here you have wiring for fuel pump.. See if you have Control, 12+ on pin2 ign on. And see if ecu Control ground too pin1.Hello 🙂
Here you have wiring diagram for youre blower. So you could check signal from switch too relay terminal F on resistor assembly, or if you have Power on terminal G from FRT HVAC fuse.
First be sure timing is corect. if it is, check that valve lash adjust is corect too, and not too tight..Intake 0.26mm, exhaust 0.30mm.
No, ref voltage (5V i belive). if high resistance in sensor ( low temp) then ref votage i high. and low resistance (high temp) ref voltage low.
Ok.. Here you have wiring diagram.. But adding ground will not work i think.. becouse ref signal must alreddy be grounded for gauge show max temp..
Hello 🙂
Try unplug Connector at coolant temp sensor and see if gauge goes Down. if it does it is the sensor, if not the pull Down ref signal is short too ground somwere in harnes or gauge.
