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Sorry NSX-RACER, I was out of town, not ignoring the question. The pressure should be 57psi @5k rpm as zt pointed out. My experience from doing this test shows numbers as low as 50psi with no cel. Viscosity, heat, etc will effect this pressure so the exact number you should see is hard to say. As long as you have over 50, you should be okay.However, just as important, and just as likely (maybe more so) to cause the cel, is pressure when there should not be. If the ecu sees pressure at the switch when the spool valve is closed; i.e. a sticky or dirty spool or bore, that will cause the same cel. When you hook up the pressure guage, you should see no more than 5-7 psi @3k with valve closed. If you want to do a quick pressure check in the shop, you can apply battery voltage to the single wire at the spool valve (harness disconnected) and check pressure at 5k rpm as well as with valve closed. As I mentioned earlier, I would highly reccomend doing this test dynamically if possible to eliminate heat, windage, etc.HTH,MB
Sorry NSX-RACER, I was out of town, not ignoring the question. The pressure should be 57psi @5k rpm as zt pointed out. My experience from doing this test shows numbers as low as 50psi with no cel. Viscosity, heat, etc will effect this pressure so the exact number you should see is hard to say. As long as you have over 50, you should be okay.
However, just as important, and just as likely (maybe more so) to cause the cel, is pressure when there should not be. If the ecu sees pressure at the switch when the spool valve is closed; i.e. a sticky or dirty spool or bore, that will cause the same cel. When you hook up the pressure guage, you should see no more than 5-7 psi @3k with valve closed. If you want to do a quick pressure check in the shop, you can apply battery voltage to the single wire at the spool valve (harness disconnected) and check pressure at 5k rpm as well as with valve closed. As I mentioned earlier, I would highly reccomend doing this test dynamically if possible to eliminate heat, windage, etc.
HTH,
MB
