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Car Forum / Mitsubishi Cars / October 20051990 Eclipse - Engine Light On
Any good way a shade tree mechanic can find out what causes this light to go on? Oil pressure, temp, alternator gauges all OK. Oil, trans fluid, coolant, brake, PS, etc. all OK. No weird sounds. Fans operate properly. Thanks in advance! Fred > Any good way a shade tree mechanic can find out what causes > this light to go on? Get an anlalog meter and read the error code from the diagnostic port. Long pulse = 10, short pulse = 1. You probably have multiple codes. At a guess its going to be O2 sensor, EGR or MAP sensor. For a 1990, most of this is likely caused by worn valve guides, valve stem seals and rings adding excess hydocarbons to the exhaust.  SignatureStewart DIBBS www.pixcl.com/lancerproject.htm Thanks, Stewart. Where can I find out what codes mean what? > > Any good way a shade tree mechanic can find out what causes > > this light to go on? [quoted text clipped - 5 lines] > For a 1990, most of this is likely caused by worn valve guides, valve stem > seals and rings adding excess hydocarbons to the exhaust. > Thanks, Stewart. Where can I find out what codes mean what? www.dsm.org, or just ask here... SignatureStewart DIBBS www.pixcl.com/lancerproject.htm Thanks again.... More stupid questions ... Where is the diagnostic port? Am I checking for 12VDC signals? > > Thanks, Stewart. Where can I find out what codes mean what? > > www.dsm.org, or just ask here... This site gives instructions on making an LED code reader. If you don't want to build this, just replace the LED and resistor with a DC voltmeter that reads above 12 volts DC. The black wire goes to ground and the read lead goes to pin one (1) The hook up instructions are here as are the error codes and how to read them. http://www.dsm.org/archives/1998/09/19980907.txt/23.html > Thanks again.... More stupid questions ... > [quoted text clipped - 9 lines] > > Stewart DIBBS > > www.pixcl.com/lancerproject.htm That's great! Thanks!! > This site gives instructions on making an LED code reader. If you don't > want to build this, just replace the LED and resistor with a DC voltmeter [quoted text clipped - 19 lines] > > > Stewart DIBBS > > > www.pixcl.com/lancerproject.htm |
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