Your 1999 Mitsubishi Diamante is a 3.5L MFI SOHC 6cyl engine.
MFI = multi-port fuel injection
SOHC = single overhead camshaft
This answer covers Mitsubishi Diamante1.8L, 2.4L, 3.0L (SOHC and DOHC), 3.5L, and 1997-2000 1.5L Engines.
2.4L engine shown, others similar.
Fig.1 - CKP position and its two mounting bolts
In Fig. 1, the two arrows point to the CKP (crankshaft position sensor) mounting bolts to remove. 2.4L engine shown.
Fig.2 - CKP reluctor removal
Remove the sensor and slide the reluctor wheel off of the crankshaft-2.4L engine shown.
1. Disconnect the negative battery cable.
2. Remove the timing belt.
3. Unplug the sensor connector.
4. Unfasten the two retaining bolts, then remove the CKP sensor from the vehicle.
5. Installation is the reverse of the removal procedure.
Reference: Autozone online repair guide: Mitsubishi Galant/Mirage/Diamante 1990-2000, at
www.autozone.com
Fig.3 - photo - new 99Diamante CKP, a Wells part #SU4313
If you want a diagram of the engine you will need to buy a factory service and repair manual set. We do not have this information for free download. Try eBay for a used set of manuals.
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