I have a 1995 Ford Taurus SHO 3.0 liters. I

on the 3.4 SHO the sensor is mounted in the front right side of the block
it reads off the gear behind the crankshaft pulley

on the 3.0 4v its similar to 3.4 but just mounted front left side

on the 3.0 2v its mounted against the front of the block reading off the crankshaft pulley

What engine? 3.0 DOHC 3.0 OHV 3.8 liter

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

inspect Mass air sensor, clean with electrical cleaner and test. should read around 3 on scanner and jump to 15-20 upon accelaration if not replace.

may just need cleaning with carb cleaner.

here is 1996, oldest I have:

Section 03-14: Engine Controls, Electronic 1996 Taurus, Sable Workshop Manual
REMOVAL AND INSTALLATION Idle Air Control (IAC) Valve Removal

1. Disconnect battery ground cable (14301). Refer to Section 14-01 .
   

1. Disconnect the engine control sensor wiring (12A581) from the idle air control valve (IAC valve) (9F715) at the idle air control valve electrical connector.
   

1. Remove the two idle air control valve retaining bolts.
   

1. Remove the idle air control valve and idle air control valve gasket.
   

Installation

1. NOTE: If scraping is necessary, be careful not to damage idle air control valve gasket surfaces, or drop material into intake manifold (9424) or throttle body (9E926) (depending upon application).
   
   Clean idle air control valve gasket mating surfaces.
   

1. To install idle air control valve, reverse Removal procedure.
   

1. Tighten the idle air control valve retaining bolts to 8-12 Nm (71-106 lb-in).
   

Under hood, passenger side, lower engine area, above engine mount, mounted in engine block .This what it looks like hope this helps

Code 33 is EGR opening not detected, this is caused by a plugged EGR exhaust passage in the upper intake manifold, this is a common SHO engine fault, the valve works but the engine does nothing that the computer can sense, since no gas flows, to verify this is the problem open the egr at idle, the engine should almost die, if nothing happens or only a tiny change in idle speed or quality the passages are plugged, if it does stall or get real rough the egr position sensor (usual code for sensor is 32) may be faulty or the valve is sticking. I was a ford dealer tech for 30 years and did quite a few of these, there is a TSB (technical service bulletin) about this problem

what engine? 3.0L 2 Valve? 4 Valve?
3.4L SHO engine?

The PCM (engine computer) fires the coils, but it is never the cause of a problem. I suspect it is the crankshaft position sensor on the front of the engine by the crank pulley. easy to change.

Crankshaft Position Sensor The crankshaft position sensor (CKP sensor) (6C315) is a variable reluctance sensor triggered by a 36-minus-1 tooth trigger wheel located on the crankshaft pulley and damper. The signal generated from the crankshaft position sensor is called the crankshaft position (CKP) signal, which provides base timing and crankshaft speed (rpm) information to the ignition control module (ICM) (12K072). Base timing is set at 10±2 degrees before top dead center (BTDC) AND IS NOT ADJUSTABLE. The powertrain control module (PCM) (12A650) will use this information with the spark advance information to determine ignition coil (12029) turn on or turn off time.

Crankshaft position sensor mounting 3.0L 2V engine


Crankshaft position sensor mounting 3.0L 4V engine


Crankshaft position sensor mounting 3.4L SHO engine

your best bet for a diagram is to ask for a suspension printout at your local dealership. Or take a look under any 86-95 Ford Taurus SLO, SHO, or Sable and they use the same design (the SHO just uses slightly different parts. Here is a link though for a SHO parts list with part numbers. Hope this helps.

http://members.bellatlantic.net/~rbruce/SHOParts.htm

It is most likely the TFI ignition module, replace it, don't use anything but the FORD part, the aftermarket modules are very poor quality, I have done hundreds of TFI"s and know this for a fact.