Standard Oil Pressure Guage Problems

[SiVaK]

Hey guys recently did an oil change (car r33 s1 rb25det) with the same oil i have been using the last like 4 changes(magnatic) and something strange is happaning with my oil pressure gauge now.. let me explain,

usually on cold start up in the mornings it sits just below 6 on the gauge then warms up abit and sits on 4,thats when i take off.

Now after driving for a while it would have dropped a little under 4 unless you give it some and then it would raise pressure accordingly. After this oil change it now drops down to under 2 while driving around and idling also doesnt gain pressure as high when you give it some as it used to,im concerned about this as ive checked my oil level and it seems fine, what could this be?? and what is normal for other ppls oil pressure patterns?

Edited September 4, 2006 by SiVaK

[ookami]

this issues has been covered many times over so try searching. From what you've said the oil pressure sounds completely normal. However if it does get very low than high again (ie from zero then back up to 3 or so)its either a faulty oil pump, or your oil pressure sender.

[WazR32GTSt]

99% of nissan imports have faulty oil pressure senders (OPS)

this means that the oil pressure is in fact OK but the gauge is getting odd readings due to the OPS being up shit creek

bad news is that those who have put in a new OPS still find that it fails in 6 months or so..

unfortunately the only real fix that we know of atm is to get a different oil pressure gauge

[SiVaK]

cheers thanks for the reply