plug comparison

 

Here, from boosted94gsr's build thread....@ post 149, pg 6, bung welded to the chargepipe using an Accord IAT sensor.....I was planning to do the same thing in effort to move the IAT off the runner of the B16 Intake I was using but I ended up selling my teg for reasons unrelated to the car itself.....Anyway...

https://honda-tech.com/appearance-bu...3208172/page6/

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Well yeah, there you go haha... just like everything I have been saying already...

As far has using the 2001 and up sensors, I don't know their scalar to know if they would work or not. I guess all you could do buy one and ohm it out. Would be neat to know, but I went OBD-1 long ago for many reasons (I understand why you want to keep yours).

 

Those plugs are identical. I know they look a bit different but trust me they are the same.

 

If the car is tuned previously with the sensor dangling, I would make sure that the sensor is placed only at the intercooler pipe afterwards and not at the intake manfifold.

The difference with the OBD-I style IAT at the intake manifold is the normal heatsoak you get when the car is idling and just driving slowly. As a tuner, you will notice that the readings are always much higher, so the fuel tuning was done in accordance to this higher reading at low RPM ranges.

Assuming the car was previously tuned with the sensor in the engine bay, then it would mainly see slightly higher than ambient temps only. To avoid a shift of tune in the idling/cruising driveability ranges, just make sure the new sensor placement is in the intercooler piping.

In this fashion, the ECU would only see higher temps under boost, which would usually make the car run safer, assuming there was IAT fuel and timing compensation.

 

Thanks for the input Tony (and everyone who's posted)

I'll be exchanging the Accord IAT with the MDX one this weekend and drill a hole in the chargepipe by the TB and report back

From this statement, are you saying the IAT would see HIGHER temps IN the charge pipe as opposed to dangling in the bay?

 

Nope, what I meant is, the IAT sensor would only read higher temps if there was in fact much hotter air temps from the turbo. This in turn, would give it a more accurate reading that would cope much better with your current tune (a tune that was done with the IAT sensor in the engine bay previously).

With the IAT at the IC piping, it would avoid having false heatsoaked readings which your tune may not be adjusted for.

I know on my ECTune, there is IAT correction for light load/medium load/high load. For OBD-I cars with IAT sensor on the intake manifold, I would usually have different compensation values in the light load IAT fueling regions because of sensor heatsoak.

 

Finally got around to doing this

Took the sensor out of like a 04-05 ish Civic?

Before /after . Seems to have helped throttle response due to heat soak?? Not sure how much colder the air inside the charge pipe vs ambient air in the engine bay is

 

I totally forgot I modded an IAT sensor because of this thread. It's lost in oblivion on one of my workbenches for sure. Guess I'll search for it and install it being as the car is about to get a shiny new F20B this week.