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Map sensor query

Old 19 September 2008, 02:27 AM
  #1  
DCR59
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Default Map sensor query

MY94 WRX; TD05, front mount, full de-cat.
Also fitted with an early ScottT scoobyecu chip running 16psi with a 17.5 fuel cut.

However on track days when temperatures get higher, the boost creeps up triggering the fuel cut.

A recent service showed a stored fault code in the memory for the MAP sensor (early type sensor - 1.2 bar)

So a couple of questions for the experts.
Can I fit a MAP sensor (1.7 bar) from a later 98 model ( I have one in my garage) without any problems with voltage signals?
I read a recent thread that a remap is needed, but I don't have the later ESL board. Is that correct?

Or should I just fit a FCD (HKS or Hybrid from Harvey)?


Or indeed any other suggestions?

I do plan on a replacement ecu in the future, but recent cash has been spent on brakes and handling, so not yet.



Many thanks
Dave
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Old 19 September 2008, 09:39 AM
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dazdavies
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Check the part number. If it's 22012AA090 then its the 3 bar map sensor. Not sure on fitment without mapping changes though.
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Old 19 September 2008, 08:02 PM
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DCR59
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Cheers Daz.

Does anyone know if a remap is required if there's a difference in the map sensor voltage, or does the Scott T chip cover this?
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Old 20 September 2008, 10:39 AM
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KLR16V
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Yes remap is required as calibration is different .

Mark
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