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problem 100% is the pgmfi main relay . its up under drivers side lower dash,its a very common issue with Honda/Acura vehicles. Its dealership only part,inexpensive,fairly easy for a person even with minimal auto experience can do.let me know if you need picture of for you k
Your fuel pressure should be 35-41 psi with your vacuum hose disconnected from pressure regulator and you can attach pressure gage at the bleeder vent on top of the fuel filter make sure your pressue gage is intended for fuel not air.
sounds like your pgmfi main relay has gone bad,pretty common on this car.it is located above the drivers knee bolster panel. 1"x1"x3" retangular box single plug
My 89 had a bad Main Relay located under the dash. I re-soldered the connections and put it back in and the fuel pump worked (listen for itwhen your S3 is out). There may be a bad ground causing the lights to go on and off (ECU?).
looked it up online, looks like its in the underhood fuse box but couldn't get a good diagram that shows which relay number it is. the website i use is sort of dependent on the manufacturer, apparently acura did not feel like sharing that info. hope that helps
Sorry, if it wasn't the relay. I had AAA say it was the fuel pump and had replaced it and the filter before finding the pump wasn't getting powered up. If there is a bad ground (it was a wire bolted to the thermostat housing on the Cl) you will have to go thru them one by one. Fuel pressure is harder to verify without guages-are the injectors ticking?
heres the location and test for the fuel pump relay these have a circuit board inside that cracks that is why you dont have fuel pressure in most cases. click here
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