93 350 TBI - Does it have a crankshaft position sensor - or just a camshaft position?

[Yeti_Owner]

Just for my own edification - does a 93 TBI 350 have a crank position sensor, and if so, does anyone have a photograph of the location? If not, does it just reference the camshaft position (IE the wonky sort-of-distributor) for ignition/fuel pulse timing?

 

[BHBurban]

It has niether.

 

[Yeti_Owner]

If it has neither, how does it get a TDC reference for the ECU? The distributor (ish) feeds the ECM TDC signals for injector timing? If so, it would be acting as a camshaft position sensor, right?

 

[Yeti_Owner]

So, does it trigger from a signal originating in the distributor?

 

[1997chevydriver]

IIRC it has something to do with the relucter ring in the distributor under the rotor

Sent from somewhere in MN

 

[TylerZ281500]

its all inside the distributor.

 

[Yeti_Owner]

Part of the ignition module in it or ?

 

[TylerZ281500]

the icm and all the stuff inside the distributor act as your position sensors

 

[Yeti_Owner]

the icm and all the stuff inside the distributor act as your position sensors

I appreciate your help, but I'm kind-of looking for specifics. IE does the ICM send a pulse trigger to the ECM, or is there a discrete hall sensor in the distributor for the fuel-injection, etc..

The wiring schematic kind of looks like the ignition module does it, but I'm just making sure.

 

[TylerZ281500]

IIRc the coil and icm go to the computer as well as the coil and icm going to each other.