Krismc
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| posted on 23/6/07 at 07:12 PM |
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Mega Squirt - Air Temp Sensor and location??
does any one know which one i require and where to get one?? and also how to mount it on my throttle boddies (GXSR 750's)
Built, Ivaed, Drove and now Sold - 2011 MNR VORTX RT+ 2000cc Zetec on R1 Throttle boddies.
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martyn_16v
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| posted on 23/6/07 at 07:35 PM |
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You can stick it in the air filter backplate/airbox if you have one, if not just locate it as close to the trumpets as poss so it's in roughly
the same air as the engine is breathing.
As for where to find one, I have had them out of Saab & Volvo's, and a couple of jap motors that I can't remember from the scrappy,
and measured them and set up the MS with easytherm. Apparently the 1.4 mk3 Astra has a suitable sensor that you won't need to configure if you
don't feel like fiddling that much. I have also heard of a supplier of new GM sensors in the UK for little money, but I can't find it at
the mo..
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Krismc
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| posted on 23/6/07 at 07:46 PM |
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cool cheers for that mate, thought about in the back of the airbox, but i aint source one of those yet either!!
kris
you know where it is located on the astra and roughly what year? the newer models im guessing, ill go get one from the scrap yard and give it a
try!
[Edited on 23/6/07 by Krismc]
[Edited on 23/6/07 by Krismc]
Built, Ivaed, Drove and now Sold - 2011 MNR VORTX RT+ 2000cc Zetec on R1 Throttle boddies.
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RazMan
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| posted on 23/6/07 at 10:19 PM |
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Isn't the air temp sensor supposed to be in ambient air? I was advised to keep it well away from heat sources (engine?) and placed mine in a
shielded position near a wheel arch. At least that is the story with my ecu - the air temp is just there to richen the mix on cold frosty mornings
when cranking.
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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omega 24 v6
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| posted on 23/6/07 at 10:42 PM |
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I used the one out of a sri cavvy it's located in the maf in a rubber grommet. I've placed it in the back plate of my airbox.(hope it
works)
If it looks wrong it probably is wrong.
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martyn_16v
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| posted on 24/6/07 at 09:27 AM |
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quote:
Originally posted by CaLviNx
Erm if an Astra sensor does work as stated (not saying it doesn't) wouldn't almost any decent motor factor in the UK have stock or be able
to order one, failing that any VX dealer should manage to get one.
Probably, but you know what some people can be like, they want the exact part number that's in the manual, not something that's exactly
the same but with a different logo on it 
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mark chandler
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| posted on 24/6/07 at 09:41 AM |
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Lots of cars these days have the air sensor built into the MAF flow meter, you just need to wander around the breakers and find a car with a sensor
bunged into the air filter housing.
I used one off a V12 jag, these engines use the inlet vacumn same as megasquirt so also can provide a nice pair of big throttle bodies.
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paulf
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| posted on 24/6/07 at 12:52 PM |
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I used one from a vectra, it measures 3k ohms resitance at 20c so agrees with the one specified for the megasquirt.
I located it in the back plate of the airfilter so that it accurately measures the actual air temperature going into the engine.
Paul.
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paulf
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| posted on 24/6/07 at 12:54 PM |
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RS part number 151-215 is the correct component but is rather small and not very easy to incorporate into a reliable fixing.
Paul.
quote:
Originally posted by Scoobylav
This isnt going to be much help but someone on here told us how he had bought an electrical resistor type thing that measured the air temp (someone
will know what the hell I am talking about) anyway we bought online for less than £1 IIRC.
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Krismc
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| posted on 24/6/07 at 05:35 PM |
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thanks for all that, ill have a poke at the scrap yard!!
Built, Ivaed, Drove and now Sold - 2011 MNR VORTX RT+ 2000cc Zetec on R1 Throttle boddies.
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