Why is my oil pressure light going crazy? on 1990 Acura Integra

Okay, So I got my Integra from my brother and it sat idle for about a year then when I took it over the oil light came on right away so I changed the oil and filter and the oil pressure switch the very first day. When I started it up after the oil change and switch swop The light flashed on then went away for a while. One month later the heater blower motor burnt up, melting the connections and filling the car with black smoke. I'm not sure and kinda doubt that would have anything to do with the oil light coming on and flashing in every way it can (light red,solid red,flashing with light red in the back round,flashing with solid red in the back round) you name it the light has done it! agh! I can't drive it the way it is so it just sits there and I need to fix it asap! Hopefully somebody can help. and thanks!

by in Hilliard, OH on February 05, 2010
3 answers 4 comments
ANSWER by on February 05, 2010
I would screw in a mechanical oil pressure gauge and verify engine oil pressure. They have about 3 to 7 psi at idle and about 40 to 60 at engine RPM above 2500 RPM. If you don't have oil pressure you have an internal engine problem that need to be addressed. If the oil pressure is correct the electrical short and subsequent electrical fire you had may have shorted out the wires that eventually go to or from the instrument cluster. You need to verify engine oil pressure first and then verify electrical continuity second. Autozone have some popular workshop manuals for free on line once you register (for free) on their website http://bit.ly/autozone_repair_info .There is a company that independent auto repair shops "buy" their information from that offer a very reasonable service to do it yourselvers. You get a one year subscription to year make and model specific repair procedures, service bulletins, component locations, wiring diagrams ect.... great quality information same as the professionals have ,much better than generic workshop manuals from parts stores, much cheaper than the factory manual. http://bit.ly/alldata_repair_manuals or try http://bit.ly/mitchell_repair_manuals_online and get an online repair manual subscription.
COMMENT by on February 07, 2010
Thanks autotechpat! The funny thing is that I have alldata and hardly see the value is the "service". The online info doesn't tell me what I need know and is truly lacking! I have learned my lesson with alldata and might go to mitchells but after dealing with alldata I think I'll just get a high quality book! anyway thanks for the advice! I just picked up a pressure gauge and am just waiting to use it and have needed to know how much psi to expect so thanks for that info too!
ANSWER by on July 16, 2010
I would check your oil pressure first if thats fine.The check your oil pressure sensor if thats fine.then most likely you have oil in your wire harness connector the goes to the oil pressure sensor or the wire harness connector has a short. My 2000 chrysler M300 oil light would flash every time i came to a stop light,come to fine out i need a new connector and the problem was fix.good luck hope you get it fixed
COMMENT by on January 12, 2011
MI OIL PRESURE LITE IS FRACHIN WHAT I DO
ANSWER by on October 30, 2010
my 93 3dr ls did the same thing with the oil pressure light. your oil pickup is cloged
COMMENT by on January 12, 2013
where the oil pickup??
COMMENT by on July 17, 2015
pick up is located in the oilpan ( good time to replace pan if needed, also gonna have to replace pan gasket ive had felpro's ( perma seal or perma dry silicone ( or rubber cant remember exactly. main thing its a light blue color) anyways after removing pain it should be right there in your face lol to be safe might order a new one incase that one is beyond repair.