92 nissan stanza prob

Asked by Nov 04, 2007 at 03:27 AM about the 1992 Nissan Stanza XE Sedan

Question type: Maintenance & Repair

i have a 92 nissan stanza xe 5 speed and have done so much work to it i really dont want to junk it. its having problems with flooding and running extremely rich. the injectors were just rebuilt and we have installed a new computer in it. it has a new fuel filter and air filter in it too. i could probably figure out the problem though if i could find out where the jack in port is for the diagnostic reader. does anyone know where this is?

6 Answers

sounds like you have a bad temputure collant sensor,located near gooseneck at thermo housing,just screws out,works like choke on a carb,it tells computer the temp of collant,can pick up at any parts store.

ill try that, thankyou

also if you bought a new or junk yard computer you may want to take it to dealer and let them reflash it for your car probly will update comp. as well. where i am at it cost 58 dollars and takes about 45 minutes.

25

Could be simply a faulty oxygen sensor..... some default to a "rich" mode signal when they get too dirty to sample air properly.

Nissan didn't put an ECU diagnostic connector on until 1996...

25

Earlier on, Nissan used a direct-reading ECU, placed under the driver's seat, rather than a more convenient ECU diagnostic plug in connector. I just checked and these units were in use from about 1984. There were 2 LED's on it-side by side, one red and one green. These units did not have to be flashed or programmed by a dealer, they were either hard wired for a particular application, or FACTORY programmed(such as for a 1985 720 series pickup or a 1988 Nissan Stanza Wagon, both of which we had). On the under-seat units, there were 2 LED's on it-side by side, one red and one green. One indicated tens the other one one indicated single digits. So you'd get a stored code-such as 4 flashes of the first color then 1 flash of the other color equal to their code #41. If everything that the ECU could monitor was OK you'd get a code for that too. Mostly the codes would indicate only a particular circuit, such as the ignition circuit, rather than a specific item, such as a cam sensor, or an ignition switch. That's somewhat useful, but not as helpful as if it had indicated "ignition coil, intake side". In the official Nissan Service Manuals it told one how to determine what code meant what problem-and then how to test the various components in the circuit to narrow the issue down.

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