hello again misters.
could u please tell me about my map.
i bought a b16a2 and swap it.

installed map-sensor kod is 0798003000 5v rs-30
is it my stock map or is it pre-owner installed from prelude or etc?
and what my stock map is?

 

that is the stock map sensor.

 

stock sensor. good till about 7-8 psi.

 

i thought they read till 11?

 

11psi

 

psi -u mean pressure for boost it?

 

yes he means boost pressure. the oem map sensor reads to 11.6 pounds per square inch

 

actually your stock honda map is an 1.7 bar map sensor and which mean it used one bar which is 14.7 to read your vacuum pressure and the 0.7 to read if has any extra boost so it can see about 7-9 pound but its not suppose to read boost so it differents between between map sensor on how much it can actually read since it was NOT made to see boost.

and how much boost are u trying to run

 

the stock map sensor can read boost just fine. its a 0-5v sensor, which reads a max of about 4.78v. this works out to about 10.2-10.7 psi depending on altitude. different sensors may vary slightly but not much

the stock ecu, on the other hand, is not mapped for positive pressure. thats why you will get a CEL if you try to boost on a stock ecu.