I have a Defi BF series Oil Pressure Gauge and the thing is when I took it from my tuner my car ran fine it idles at about 21 PSi nad when drove hard it would anywhere from 80-100 PSi, nad normal driving 60-80 PSi...But all of a sudden now when I drive and hit the gas my oil pressure gauge hit the 80-100 PSi mark, but sometimes dips down to 40-60 PSi while still at WOT...Then if I slam my brake pedal (hard braking) my oil pressure gauge flings down to 0-15 PSi, which is where I set my warning at...My question is any reason why all of a sudden I have this problem and checked my oil nad seems to be perfect with the oil showing Hon the dipstick! Please help me and if the car is driven normal and boosted a little the car is PERFECT! Sorry about the long post, but any help would be appreciated!

 

[QUOTE=jdnissanz,Dec 18 2005, 05:38 PM] I have a Defi BF series Oil Pressure Gauge and the thing is when I took it from my tuner my car ran fine it idles at about 21 PSi nad when drove hard it would anywhere from 80-100 PSi, nad normal driving 60-80 PSi...But all of a sudden now when I drive and hit the gas my oil pressure gauge hit the 80-100 PSi mark, but sometimes dips down to 40-60 PSi while still at WOT...Then if I slam my brake pedal (hard braking) my oil pressure gauge flings down to 0-15 PSi, which is where I set my warning at...My question is any reason why all of a sudden I have this problem and checked my oil nad seems to be perfect with the oil showing Hon the dipstick!

 

Bad sending unit?

 

Not to sound like an idiot, but how the hell do you guys read our oil dipstick...The oil readings can be read on two sides and for me most of the time both sides are different...I added oil and bam problem fixed I was semi-low on oil I guess and now the gauge works perfect..Anyway anyone know how to read this dipstick or am I the dipstick? I seriously know a lot about the S2000, but its dipstick not as easy as most cars to read...Also, is there anything electrical one can put as a digital gauge of some sort that gives how much oil is in car and left or whatever...And thanks for the quick replies!

 

How low was it?

I am not sure how that makes sense unless you were low way over a quart. Even if you were 1/2 quart low the pressure should'nt have dropped to 0-15 psi unless you were throwing car around from corner to corner taking fast turns maybe.

The readings are different on the dipstick, in my case they are diferent by a whole diamond. I just make sure that neither side is ever below a quart low. But if I will be driving the car spiritedly, I make sure that my oil is as full as possible to the highest mark.

But again I am not sure how being low within the allowable limits would change your pressure readings. Should still be enough oil left in the pan for efficient pickup operation.