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MAP sensor question

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Old Feb 9, 2008 | 04:23 PM
  #1  
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Default MAP sensor question

currently my engine is standard, but i need a new MAP sensor

my question is: On a standard engine, can i upgrade to a 3 MAP bar sensor? will it run OK? - i'm pretty sure it will but i just want to check

i plan on going to stage 3 eventually so thats why i want to replace the standard map sensor with a 3 map bar sensor

cheers
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Old Feb 9, 2008 | 04:52 PM
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Hi,

You can't fit a 3 bars MAP instead 2 bars MAP.

With each EPROM, you have an inseparable trio :
EPROM / MAP / Injectors.
You can't change only one element.

Regards.

Claude
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Old Feb 9, 2008 | 05:27 PM
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you cant becuse the voltage/pressure ratio is different..

ie,5v on a 2bar may be 14.5psi

5v on a 3bar would be 29psi....

the max voltage the sensor gives is the same between the two sensor types
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Old Feb 9, 2008 | 05:55 PM
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As said, MAP values are co ordinated with chip settings so can't swap like this.
They have different pressure ranges, the 2 BAR has 17/216KPA, the 3 BAR has 17/308KPA, both have the same operating temp of -30C to +110C, response time is less than 7MS.
The 02/03(2 BAR) has an over pressure of 200%, whereas the 05/01 (3 BAR), has overpressure of 450KPA
tabetha
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Old Feb 9, 2008 | 06:12 PM
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Originally Posted by 2001ode
With each EPROM, you have an inseparable trio :
EPROM / MAP / Injectors.
You can't change only one element.
Thats the most eloquently put Ive ever seen the answer to that question.

Puts my english to shame

PERFECT answer IMHO.
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Old Feb 9, 2008 | 07:08 PM
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Thanks.

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Old Feb 9, 2008 | 07:13 PM
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not true though...std cossie....change eprom only=stage 1

no need to swap map sensor or injectors
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Old Feb 9, 2008 | 10:07 PM
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bugger! - i've already ordered a 3 map bar sensor.

Anyone got a standard item laying around?
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Old Feb 10, 2008 | 07:56 AM
  #9  
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Why not throw a set of greens and a new chip while you're there then?
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Old Feb 10, 2008 | 08:21 AM
  #10  
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I think i have a standard one laying around somewhere m8,

Steve
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Old Feb 10, 2008 | 09:24 AM
  #11  
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I have a good std one in my toy box!!
tabetha
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Old Feb 10, 2008 | 10:29 AM
  #12  
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Originally Posted by JTECHSAFF
not true though...std cossie....change eprom only=stage 1

no need to swap map sensor or injectors
tis true - he is saying that for every chip you must have the correct MAP sensor and injectors
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Old Feb 11, 2008 | 06:13 PM
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no he said you cant change one of the trio......
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