| This is probably one of the easiest DIY (Do It Yourself)
repairs on the Z. I had to replace my faulty, worn out oil pressure sensor
when the oil pressure gauge started reading low. I am told that the oil
pressure sensor is a common problem on the Z's. This procedure is based
upon my 1990 non turbo.
Part Numbers:
25070-30P01 - Oil pressure sender (TT, not sure if NA is different)
Tools Required:
10 mm socket and socket wrench
17 mm open end wrench
Scheduling:
During an oil change or any other time the oil is drained from the car.
Note: the job can be done without draining the oil -- which, by the way,
is how I did it -- but I don't recommend that. It's very messy.
Preparation:
Jack up the car using all normal safety precautions
Drain
the oil and Remove the oil filter
Procedure:
1. Find the sensor. It's right above the oil filter (1. dot is on
the sensor).
2. Remove the deflector (2.). This will allow easier access to
the oil pressure sensor (2 x 10 mm). This piece might only be on NAs.
3. Unplug the connector (3. yellow dot) on the sensor by pulling back the rubber
dust boot and push in the tab that unlocks the connector. Go ahead and
clean off any corrosion on the contacts at this time. Remove the oil pressure
sensor using a 17 mm open end wrench (3. red dot). Note: I did this without draining the oil so my oil filter (1.
the big blue thing) is still installed and tends to get in the way.
4. Install the new sensor, plug in the connector, replace the deflector,
and finish your oil change.
Note: If you're going to do this without changing the oil, here are a few
tips:
1. In order to unscrew the old sensor and screw the new on in, put the
wrench up high, near the exhaust manifold. That way there's a little more
room to turn the wrench and the filter is not in the way.
2. Have the new sensor on hand when you pull the old one out because
the oil WILL start pouring out of the hole! Otherwise, you'll have to stick
your finger over it and hope someone is around to hand you the new part!
;)
Derrick
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