I understand that it basically drives the oil pump. What I was refering to is the "California only" comment. How does it only apply to Cali only vehicles if you need the cam sensor on there? I didn't understand that.
Because on the 1990-1993 4.0's there is no cam sensor.
You are Assuming that all 4.0's have a cam position sensor camshaft synchronizers.
Granted the later engines integrated that sensor onto the oil pump drive, but that is not necissarily the case....
It's simply a gear drive for the oil pump, there is no sensor.
HIS need for a cam position sensor is not yet established, because
The sensor only applies to SEFI 4.0's which were introduced
mid-93 (on Explorers, RARELY on 1993 Rangers) in California
1994 on Explorers, and mid-1994 on rangers everywhere else
SO HIS original 1994 Engine could have come from a Non-SEFI4.0
He hasn't said so or not yet.
"Don't Know" means "don't Know"
I DO KNOW that he needs to drive the oil pump and plug the hole....
and a Non Sensor 1990-93 oil pump drive willdo that even without the sensor (or provisions therefore)
MY 1993 Explorer engine has no cam sensor.
Nor does my 1994 "spare" engine which came from a Ranger.
The OP may or may not "need" such a sensor, depending on the exact management system he is using (like I said MOST 1994 Ranger 4.0's aren't SEFI) and if he does need it presumeably he can rob it of off the "Dead" engine.
I personally chose my 1993 Explorer 4.0 engine donor with carefully considered intent.... 1993 was the first year for "Active data link"
But didn't have SEFI (with it's troublesome sensor) or EGR (with it's troublesome sensor)
I routinely advise people to AVOID the 1994 engines with SEFI
for swaps to earlier vehicles, because ALL SEFI4.0's have EGR
and the sensors DO fail.
AD