map- values changing

igotprobz · **Joined:** Fri Sep 18, 2009 3:18 pm **Posts:** 3

i have a issue whith my map-signal..

it changes about 30kpa from time to time.. normaly it reads 120kpa atm, wich is abit high anyway but sometimes (about 1/3 of the times) it reads ~150kpa..

have changed sensor and kable but it stayed thesame..

any ideas please.. makes the programing abit hard..

Jon@EMI · **Posted:** Mon Oct 12, 2009 9:01 am

Which software are you using? How old is the MAP sensor? There may be a problem with the sensor, see if you can try another one.

igotprobz · **Joined:** Fri Sep 18, 2009 3:18 pm **Posts:** 3

i'm using wintec-2, the sensor is about one year old. tested yesterday and it was at 170 kpa at atm..

Jon@EMI · **Posted:** Tue Oct 13, 2009 8:20 am

The erractic readings make me think that there is something wrong with your MAP sensor. Do you have a 2-bar or 3-bar sensor? See if you can borrow another or give us a call and see about getting another one.

Mounting the sensor with the port facing up or mounting directly to the engine can cause premature failure of a MAP sensor.

igotprobz · **Joined:** Fri Sep 18, 2009 3:18 pm **Posts:** 3

changed the map-sensor and now it runs perfekt again.. looks like both my sensors were bad..

thanks everyone

/johan

map- values changing

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