Recent content by Mr B

  1. M

    1992 Winter green Nissan pulsar Gtir

    Series 2 with series 1 parts, hope it not one via auto infusion in bristol, they revert cheap finds to cleaner low modification spec by lot of parts swapping, if it is that one the engine was rebuilt as blew up on a test drive . Pretty sure seen this one advertised before as remember the phase 1...
  2. M

    Water temp sensor fault

    warning buzzer !
  3. M

    Water temp sensor fault

    Would say rules out voltage reg as pretty sure that in the clock board assembly. I done voltage reg on earlier 80's nissans and they been 8V, is possible later nissans 9V which would make your 8.9V reading good, need collect some readings on good cars see what is standard. Sensor wire goes...
  4. M

    Water temp sensor fault

    seems you got whole clock assembly would be easy try as a test .
  5. M

    Water temp sensor fault

    You going need look at the service manual 2 EL section, look at wiring diagram for clocks and pull clock assembly and test voltage feed for clocks and 3 middle dash clocks too as would think they same base voltage spec. I can't recall if voltage regulator built into clock printed board but...
  6. M

    Water temp sensor fault

    I would say your regulated gauge voltage is high, should be 8V The water gauge sensor reduces resistance as heats up which allows greater current flow to earth which increases needle movement. The water gauge sensor is not linear and sensitivity and accuracy worse at lower resistance ranges...
  7. M

    Water temp sensor fault

    My needle is a little under 3/4 to bang on 3/4 at idle and fans just cutting in & half or fraction over in general running, most I seen about same with very minor difference. Does yours display high even in general running rather than half . Could do with thermal probe or infra red heat gun get...
  8. M

    Water temp sensor fault

    To be totally exact it has variations based on vehicle speed. below 20mph fans switched on @ 100degC above 20mph and to 80mph fans switched on @ 96degC above 80mph fans switched on @ 105degC * values above based on aircon "off" * for stationary testing ecu fan ground switching circuit _...
  9. M

    Water temp sensor fault

    Gauge or sender for gauge out of tolerance I would assume, test sender or buy quality new one (lot of R's get wrong/cheap senders fitted so always keep that in mind), as it ntc sender you could calibrate it to some extent by putting a resistor inline on the single wire. they read about half for...
  10. M

    Water temp sensor fault

    200ohm to low 100ohm , variable resistor more usable tool but basic resistors will do job .
  11. M

    Water temp sensor fault

    fan switching around 100 . either wait for fans cut in/out with car running (take while and get hotter than you think) or test circuitry by simulating 100deg+ with a resistor bridging sensor connector, variable resistor pots can be had for £2 and few of them along with some standard resistors...
  12. M

    Water temp sensor fault

    ECU has a couple of main grounds (pin 6 & 13) but if had main ground issues at ecu would expect lot of issues not just ECT sensor. Worth checking grounds though just be sure . You can't just re-earth the sensor as the earth return at pin 21 is the analogue data input for the ecu (ecu is reading...
  13. M

    Water temp sensor fault

    reference voltage seems good . earth has continuity but not sure what average resistance value is with ign key off so 12ohm could be classed as suspect at moment. I would assume the 30 to 80 sensor disconnected slow temp increase is ecu limp mode value for water temp, does it stay at 80 once...
  14. M

    O2 sensor voltage?

    Titania has 5v reference and signal value varies from somewhere around 0.4v to 4v lean to rich . Can buy universal sensor cheap enough if needed NTK Titania universal (3 wire, M12x1.25) > http://www.ecolambda.co.uk/main/ecosale/price.pl?item=250-23880
  15. M

    Water temp sensor fault

    Have you checked the 5v reference signal at sensor harness to the sensor is correct have you check earth continuity from sensor harness to engine ground Have you checked/cleaned ecu harness plug/pins, sensor harness plug/pins Have you pulled sensor out and tested it in heating water with...
Top