any had experience with the temp sensor or ecu lambda bit?
warning repetitive info:doh:
http://reviews.ebay.co.uk/Nissan-Micra-K11-buyers-guide-by-micrabits_W0QQugidZ10000000011431513
Overfuelling/Emissions problems. Might need a diagnostic computer for this one. Some cars have a wiring fault where the
temperature sensor reads incorrectly. The sensor thinks its -37 centigrade and sends too much fuel in. Just like running
with the choke out (Ask your Dad!). Nissan used to sell a modified wiring harness for about £30. The only change was a
1.5K resistor in the wire going to the ECU.
http://www.ecutesting.com/nissan_common_throttle_body_fa.html
Nissan, all models 1993 - 2004 onwards
Emission Failures -
High CO & low lamna reading. common causes of rich running faults are the lamna sensor or the ECU (engine control unit)
both of these parts are relatively simple to check, to check the sensor strip back the insulation on the signal wire from
the lamna sensor, this wire is usually black. Then hold the bare wire between your finger and thumb then touch your other
hand on to the battery positive the internal resistance of your body will give 1volt at your finger tips which is what the
sensor would give out when the engine runs rich, if the emissions come down then you have a faulty lamna sensor or wiring
but if the emissions remain the same then the ECU is a possible fault. For more information on ECU testing click on ECU
warning repetitive info:doh:
http://reviews.ebay.co.uk/Nissan-Micra-K11-buyers-guide-by-micrabits_W0QQugidZ10000000011431513
Overfuelling/Emissions problems. Might need a diagnostic computer for this one. Some cars have a wiring fault where the
temperature sensor reads incorrectly. The sensor thinks its -37 centigrade and sends too much fuel in. Just like running
with the choke out (Ask your Dad!). Nissan used to sell a modified wiring harness for about £30. The only change was a
1.5K resistor in the wire going to the ECU.
http://www.ecutesting.com/nissan_common_throttle_body_fa.html
Nissan, all models 1993 - 2004 onwards
Emission Failures -
High CO & low lamna reading. common causes of rich running faults are the lamna sensor or the ECU (engine control unit)
both of these parts are relatively simple to check, to check the sensor strip back the insulation on the signal wire from
the lamna sensor, this wire is usually black. Then hold the bare wire between your finger and thumb then touch your other
hand on to the battery positive the internal resistance of your body will give 1volt at your finger tips which is what the
sensor would give out when the engine runs rich, if the emissions come down then you have a faulty lamna sensor or wiring
but if the emissions remain the same then the ECU is a possible fault. For more information on ECU testing click on ECU
