[Diy_efi] TPI Air Intake Temp Sensor Location

[David Allen]

  Clair, in the air filter base exactly where you describe is where the factory intended, on a TBI setup on a 305. The MPFI system from a 2.8 V6 it was also in the airbox, pushed into a rubber grommet.
  As far as I know all the fuel-injected GM cars with an IAT sensor have this mounted on the air intake before the throttle.  Wouldn't the fact that the air in the manifold has gone through a pressure drop at the throttle, lead to a lower reading than the ECM is wanting?
  How did you put a tuned port setup on a Mopar engine?  This has got to be interesting! Do you have pictures? Good luck firing this beast up!
  Hope this helps!
David

----- Original Message ----- 
From: "Clair Davis" <clair.davis at charter.net>
To: "diy_efi" <diy_efi at diy-efi.org>
Sent: Saturday, September 02, 2006 10:33 PM
Subject: [Diy_efi] TPI Air Intake Temp Sensor Location


> OK, I'm THIS >< CLOSE to firing up my 2-year EFI conversion on my 69
> Plymouth Valiant.  I'm using a 7730 ECM, and I've got 99.44% of the wiring
> done now, so probably over the next couple of days, I'll be asking some
> seemingly goofy questions.
> 
> The first, I'll keep simple... does the air temp sensor care where it's
> mounted?  Currently, I've got it mounted in the air cleaner assembly I'm
> using, a reproduction of the old Mopar "unsilenced" air cleaner that you put
> the engine callout plate on back in the day.  Basically, I drilled a hole in
> the air cleaner base and mounted the sensor with a short piece of heater
> hose.  It's a very tight fit, so the sensor is not about to come out of
> place, and there won't be any unfiltered air leaks at this location.
> However, I just "re-discovered" a hole in the back of my intake manifold
> that might be the right size for the air temp sensor.
> 
> Is one of these locations superior to the other from a functionality
> standpoint?  It's nothing to plug the hole in the intake, but it might
> provide a tidier install and allow me to remove the air cleaner without
> having to remember it's hard-wired to the car...
> 
> Any advice greatly appreciated,
> 
> Clair
> FTWTX
> 
> 
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