This motor swap is starting to wear on me. 89' 454 from 1ton pickup.
I found this cool list while searching.
"Depends on what year the car is.
On my 92 RS:
1) the driver's side head has the Temp Sensor for the Gauge
2) The O2 Sensor's in the Y-Pipe on the Driver's Side
3) The Knock Sensor's on the Passenger Side of the Block
4) The Fan Temp Switch is on the Passenger Side Head
5) The coolant temp sensor (for the computer) is on the intake manifold.
6) The Oil Pressure Sensor (for the gauge and computer) is on the Driver's side of the block above the oil filter.
-Rich-"

Now I have a sensor in the drivers side exhaust manifold. This is the o2 sensor right?

Also i have some weird thing with 2 tubes coming out of it(I think 1 or both are hard lines). It is sticking out of the middle of the intake manifold between throttle body and distributor. I was thinking it was the evap/purge thing?
Any help greatly appreciated.

Charlo

 

I thought the guage was on the manifold near the thermostat was for the guage, and the one on the drivers side head was for the ECM.

Most of the stuff between the throttle body and distributor is EGR related.

 

yeah, the 02 sensor is the only sensor that will be in your exhaust manifolds.

the thing with the tubes..its your EGR valve.

-brian

 

The thing with the tubes is just a port. No diaphram, no wires just two tubes coming out of a fitting on the intake. I think the EGR is on the front of the engine for the 454. There is a vacuum tube from throttle body to a little black box with wires attached, and another vacuum tube going to a big diaphram that looks just like egr on old 350. My Haynes manuel doesnt show **** for a 454

Charlo