ProFlo 4 O2 Location

[Doppleganger]

Quick question: the ProFlo4 EFI setup says to put a bung in the passenger side header collector. WELL.....some dumbarse that wears my pants and looks alot like me, mounted the headers, routed plug wires, etc all up and forgot to do just that. Would the world end if I placed the bung in the adapter pipe a mere few inches from the collector? I could swear I've seen adapters come with the bung in them at that location.

Probably a stupid question but one that would typically bite me if I dont at least appear to be worried.

Thx.

 

[bucket]

It will be just fine mounted in the collector reducer.

 

[idahovette]

The laugh emoji is for your journalism....NOT your problem @Doppleganger

 

[Chevy 88]

From my understanding, the O2 sensor reacts to the oxygen in the exhaust. The more oxygen there is, the more electricity the sensor produces, and the computer uses that value to calculate the rich/lean figures. However, the sensor only works when its very hot. So if you get too far away from the heat source, then it wont work properly. A few inches one direction should not make any difference. I would think that even a few feet would not make much difference. Newer rigs have a heater element built into the sensor, so that they heat up faster to increase the engine efficiency during the engine warm up period.

 

[bucket]

The laugh emoji is for your journalism....NOT your problem @Doppleganger

I got a kick out of the writing too.

 

[Jims86]

Is it a heated sensor?

 

[bucket]

Is it a heated sensor?

Hi Jim! How have things been?

 

[bluex]

Wide band sensors should be 6-10" from where all the pipes converge into 1, with minimum 18" of pipe behind it.

 

[Jims86]

Hi Jim! How have things been?

Pretty good! just livin life the best I can…how about you?

 

[bucket]

Pretty good! just livin life the best I can…how about you?

The same as you I guess. Just keep truckin' through life, always looking for the smooth roads ahead.

 

[xm20k]

I've seen header collector reducers with the bungs already welded into them, so as long as the gaskets seal good I don't see an issue.

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[75gmck25]

As already asked, does it use a heated sensor?

Unheated sensors (usually only three wires) have to be close to the header collector so they get hot enough. Heated sensors (5 wire, etc) have a separate heating element, so they can usually be just about anywhere in the exhaust.

 

[Ricko1966]

Most if not all 3 wire oxygen sensors would be an easy fit in this application. The 2 white wires are power and ground.Black wire is O2 signal case is O2 ground.

 

[legend57]

Collector reducer is where I typically install the O2 sensors. Just make sure you don't have any leaks at that interface between the header and reducer.

 

[Frankenchevy]

Wide band sensors should be 6-10" from where all the pipes converge into 1, with minimum 18" of pipe behind it.

Chris @Doppleganger , this post is spot on. This location worked for my Sniper and PF4.