wow switching map sensors sure makes a diffrence
09-02-06, 08:54 PM
#1
wow switching map sensors sure makes a diffrence
had a non-turbo map sensor on my turbo car.. i didn't kno this tho thought they were both the same untill i talked to someone about why i can't get into boost. It would bog under too much load or at atmospheric before boost. he said get a turbo map sensor on there and ur problem will be solved. my turbo one was broken where the vaccum line atatched so i went to hardware store and rigged somethin up. so if your experiencing similar symptoms check to see if you have the right map sensor. i just stupidly chose the one that wasnt broke which i thought was a no brainer at the time.
09-02-06, 10:33 PM
#2
HAILERS
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For fun I've swapped turbo sensor to non turbo and vice versa. It even made the idle *funny* compared to having the right one on. One is a two bar and the other a one bar sensor.
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09-07-06, 07:20 AM
#8
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Originally Posted by keithrulz
had a non-turbo map sensor on my turbo car.. i didn't kno this tho thought they were both the same untill i talked to someone about why i can't get into boost. It would bog under too much load or at atmospheric before boost. he said get a turbo map sensor on there and ur problem will be solved. my turbo one was broken where the vaccum line atatched so i went to hardware store and rigged somethin up. so if your experiencing similar symptoms check to see if you have the right map sensor. i just stupidly chose the one that wasnt broke which i thought was a no brainer at the time.
Like HAILERS said...
The non-turbo "pressure sensor" is a "1-bar MAP sensor".
The turbo "boost sensor" is a "2-bar MAP sensor".
The stock Turbo II ECU FUEL-CUTS at ~ 1psi over stock boost levels.
All things being equal, if the boost sensor puts out about 3.7VDC back to the ECU, the ECU is going to think OMGWTFBBQ and trigger overboost fuel-cut.
With your non-turbo pressure sensor, this is approximately -3.7 "psi" of vacuum or something like ~5inHg.
So there is no way you could hit WOT at any time, since WOT = "0psi" or "0inHg".
That's why you were bogging like crazy...
-Ted
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