After putting this cluster in it shows 4 on startup, then drops just below... at times it is just above 2 (still normal) but then it will drop down to 0 for a few mins and pop back up (it won't do it all the time, just some of the time!). It drives and runs perfectly no matter what the gauge says and it has only happend since I installed the cluster.
I figured the first step would be to confirm what is happening with the oil pressure before looking for another problem (oil pressure sensor, oil pump) but it would be just as expensive (if not more) for me to buy and install an aftermarket gauge or to take it to a mechanic as it would be for me to replace it with one that is working for sure!
Worst case it keeps happening, I can flog off the other cluster and find the true issue or if it is the cluster (most likely) then it has only cost me $50 odd dollars!
Any advice? Or does everyone agree?