Oil Pressure?


Asked by Sep 02, 2009 at 10:28 AM about the Mazda RX-7

Question type: Maintenance & Repair

Hey guys, I have a RX7 but am noticing a lot of twitchin on the oil pressure gauge, and in some scenarios the pressure drops to 0 when idling, it can go up to 6 or 7kg/cm2 when accelerating. I have noticed this for a few weeks now, but checked the oil regularly and it hasnt lost hardly anything. Could this just be a faulty sender unit? Cheers guys

6 Answers


Exactly that bud - the standard issue / OEM sender / gauge is prone ( after years of use / heat abuse etc etc ) to do a pretty piss poor job! Wouldn't worry too much about it...... I and several other FD owners on FDUK.org/forum have the same issues and that is the general consensus! ;) HTH Phil


regularly top up ur engine oil every once a month . rotaries tend to consume engine oil .


thanks for your replies guys it has put me at rest a bit :)


I have a '85 RX7 with a 12a in it and it does the same thing. My oil pressure stays on zero, but my oil level is fine.

3 of 3 people found this helpful.

you realize that oil level and oil pressure are completely independent of each other, low oil pressure could be a bad sensor or ground, or it could be a sign that your pump is going out, get a cheap oil pressure gauge from your local parts store and find out for sure.

1 of 1 people found this helpful.

i have an 89 rx7 an had to replace the oem oil preasure sensor. soi put a new one in and it reads it has perfect oil pressure.

2 of 2 people found this helpful.

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