Couple of ???

[89IndyTA]

1. Does anyone know the GM part # for the oil pressure sender, I need to replace a bad one that is leaking and giving a bad reading. Already tried an aftermarket but I do not think it is correct.

2. Since the TA 54 is being rebuilt by J Craig I put the stock back on and I have noticed a heavy shutter between 4800 to 5300 rpm at about 12 lbs of boost. Any thoughts any one?....................

Signature of car build up is below

TIA....................

 

[automorph]

The shuttering may be the infamous TURBO SURGE. I haven't had any experiences with this yet.

 

[89IndyTA]

Well, to let the board know:

1. I found the GM part # to the sender/kill switch and it is still available, list is $44.65. Part # 102

2. I believe the shutter is coming from a weak stock waste gate, maybe not but it is raining here and I wll be giving it up for the day.