The oil light blinks intermittently. Restarting the engine makes it stop . I had an oil change performed 2000 miles ago and it is not low.

Have you checked the oil level with the dipstick? What's the year, make, model, engine?

You changed the pressure switch but it didn't change. Your engine has low oil pressure, when you rev it it can build the pressure back.This is not a matter to take lightly, you need to take in and have the shop inspect it. It could be bad bearings, oil rings... Its an internal problem.

Bad timing chain tensioner or timing chain has stretched causing cam timing to be off. There is a solenoid for the vtc advancement that also might be bad. Get a good Honda tech to take a look at it!

Your check engine light---indicates a possible system failure,nothing to do with oil
You have it checked for codes,diagnose the issue and repair

Your oil should never be low.
If you go as much as 5000 miles on an oil change and really drive it hard,you may loose a 1/2 qt in 5,000 miles

Check oil level. Make sure you're using the right weight oil. If those are good, you've either got a bad oil pressure sensor or pressure problems with the pump or worn engine bearings. Could be a sitcking pressure relief valve in the pump. But also could be a worn engine

hi, the oil light in your vehicle comes on to let you know that the oil pressure or level is low. sounds like the oil change was performed, but the oil level was not returned(not filled) correctly, or not filled at all. also a possibility that the oil leaked out from a leaking oil filter or drain plug. you should check the oil level on the dipstick before you drive again. if it is low, or empty, the engine will likely blow very soon. fill the oil if it is low until it shows on the dipstick. then top off until on the full mark. or, call the shop that performed the oil change and have them tow your vehicle back to have it serviced correctly. you should be upset at this fact, there should never be a time when you just have your oil changed and the oil light comes on soon after. this generally tells you that your vehicle was not serviced properly.

i am pretty sure the oil light comes on when the key is turned to the ON position, then goes out after it starts (providing oil quantity is not low). if it stays on after it starts, then may be an issue with sending unit.

mention it to the dealer when you take it in and they should be able to further diagnose.

BTW, what service is it going in for is oil service was performed 5000 miles ago?

Take a gauge and check you oil pressure. If its not low then change the pressure sensor. If the pressure varies and the pressure is not where it is supposed to be, then drop the oil pan and look in the bottom of the pan. If you see slivers of metal then the bearings are going out. Eather the cam bearing, rod bearing, or main bearings.

Whens the last time you checked the oil or had it changed, should probably check this first. If it's low add to the line(probably real low) and get the oil changed asap.

Check the oil level, check that there is no leak and that oil is not being consumed inside the engine.
If oil is low it can be because of a bad gasket, a broken oill filter, or engine is getting old and starts burning oil inside the cylinders, you see black smoke from exhaust when this happen.

If you just want to reset the warning you can unplug battery cables for ten minutes. You mey be asked car stereo security code when connecting back.