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Join Date
Oct 2008
Posts
5
I thought I'd update my situation. I decided to bypass the dash meter after reviewing my setup. The wire from the sensor was cracked, making intermittent connection and I measure the resistance of the sensor which looked to be off quite a bit. It was reading 80 ohms across it when the engine was off and the wire disconnected, where I believe it should be 240 ohms. With that said, I shouldn't read low psi ever, but the open wire could cause it.
Therefore I decided to install a mechanical gauge, just to see what that said. After it warned up, it looked to have about 7 psi, in gear. It's low, but I think my motor won't spin a bearing. The pressure jumps right up with the rpm. I'm running Autozone 20W50 and a Fram filter. After reading a post elsewhere, I decided I'll probably change to an AC Delco filter and try another brand of oil, Castrol. I decided the filter might make a difference because the Fram is 18 micron vs the Delco at 25 micron and should offer less resistance, which will mean less pressure drop through the filter. I'm not sure about the oil, but I'll do one at a time to see the difference.