4.0 timing

[lilfordrunner]

Maybe you could swap in a section of pipe from that year with the o2 sensor spot in it, and hook it up.

That's exactly what I was thinking

 

[FritzTKatt]

No idea if it's pre or post cat though. Likely post cat.

I only have 1 o2 sensor (that I remember seeing last time I was under there, definitely not one post-cat). So why would a 93, a year earlier, with the same motor get 2 o2 sensors?

Unless it's a Cali model.

EDIT: <<< since when am I a "facebook moderator"? I don't even use facebook... nor did I apply for the moderator spots Jim posted about. Or am I just hallucinating?

EDITEDIT: Ok, not there anymore... nevermind

 

[Snoranger]

It a pre-cat O2 sensor thats missing. Get that in there and move the other one up the pipe to where its only reading 1 bank, not both.

 

[aspevacek]

Crank Postion sensor tells the ECU where the crank is and a cam position sensor tells it where the cam is. The ford 3.0 and 4.0 use a camshaft syncro nizer to ge the cam postion and time the injectors and spark.

 

[kunar]

Crank Postion sensor tells the ECU where the crank is and a cam position sensor tells it where the cam is. The ford 3.0 and 4.0 use a camshaft syncro nizer to ge the cam postion and time the injectors and spark.

not all the 4.0's had cam sensors, not until mid to late 90's. i know my 93 engine did not. not sure how that setup works, i dont have an answer....

 

[aspevacek]

not all the 4.0's had cam sensors, not until mid to late 90's. i know my 93 engine did not. not sure how that setup works, i dont have an answer....

Your 93 should have the camshaft syncronizer on it which basically acts as a camshaft sensor and send cam position to the ECU to tell it when to fire injectors and spark.

 

[aspevacek]

The O2 sensor should not make it die once the truck is warm. Do you have a way to pull the codses from the system to see what codes it is giving?

 

[92NHranger]

On my 92 the computer takes over if it doesnt sense the O2 after it warms up. I learned that from driving without an O2 for a year.

 

[ronclark]

Your 93 should have the camshaft syncronizer on it which basically acts as a camshaft sensor and send cam position to the ECU to tell it when to fire injectors and spark.

I know federal emissions 93 explorer has no camshaft sensor. one of the main reasons for picking it for my swap.