Sprintex 3.6 pentastar install

[2k13jk]

A bad map sensor wont recognize the manifold pressure thus not fueling the engine correctly. Im trying to figure out what map sensor every company (ripp magnuson procharger prodigy sprintex) are using its got to be the same between them. From what a local tuner told me ripp used to use mopars srt4 map sensor because its whats called a 3 bar sensor being 3 bar can read negative and positive intake pressure and 2 bar map sensor only reading negative manifold pressure (vacuum)

[rgeorge33]

A bad map sensor wont recognize the manifold pressure thus not fueling the engine correctly. Im trying to figure out what map sensor every company (ripp magnuson procharger prodigy sprintex) are using its got to be the same between them. From what a local tuner told me ripp used to use mopars srt4 map sensor because its whats called a 3 bar sensor being 3 bar can read negative and positive intake pressure and 2 bar map sensor only reading negative manifold pressure (vacuum)

I'm not sure what it cross references to, but the Sprintex kit uses a Bosch 0 261 230 283. I believe it is a 3 bar, so it may be the same unit.

[gbaumann]

A bad map sensor wont recognize the manifold pressure thus not fueling the engine correctly. Im trying to figure out what map sensor every company (ripp magnuson procharger prodigy sprintex) are using its got to be the same between them. From what a local tuner told me ripp used to use mopars srt4 map sensor because its whats called a 3 bar sensor being 3 bar can read negative and positive intake pressure and 2 bar map sensor only reading negative manifold pressure (vacuum)

rgeorge, May I offer an alternative explanation on the "bar" of a MAP sensor? BAR is a metric measure of atmospheric pressure. Simply put, absolute seal level is 1 BAR. As you move up and down in elevation relative to seal level atmospheric pressure changes. It's important to know the pressure in the manifold without regard to outside atmospheric pressure so MAP sensors read "absolute" pressure (not important here). A 1 BAR sensor can read accurately up to 1 BAR or about 14.5 psi at sea level. A 2 BAR sensor can read up to 29 psi and so on. The Bosch code you posted is for a part originally equipped in a Fiat 1.5L trubo. It is quite likely a 2 or 3 bar MAP sensor because it has to read boosted pressure values. All of that said:

If you have an electrical multimeter you can perform some basic tests. There are three pins on the MAP sensor wire harness connector. They are +5 volts, ground, sensor output. Turn the key on to run (don't start the engine). If you set your meter to DC volts you can pin the black meter lead to the ground and you should find one of the other pins with 5v on it. If you can't make a circuit or the voltage is more/less than 5v the the issue is in the harness (look for damaged wiring or bad connector, etc.). If you get 5v then you're good to go. Testing the MAP sensors themselves is a bit harder - you need a vacuum pump. But a simple test is to put 5v and ground to the MAP sensor and read the output. The output should be close to or exactly 5v because there's no vacuum applied to the sensor. If you bench test a MAP sensor and get way less than 5v without vacuum applied, then the sensor is bad. I write all of this because I went through all of this.

I strongly suspect your wiring harness is OK and your MAP sensors (now you have two) are OK. What's not OK is what is happening in the computer when manifold pressure changes and the voltage on the output side of the MAP sensor changes. Now you're in calibration land and the tune file tables need to correctly address what to do with the MAP voltage supplied to the computer.

You might ask one of the other USA sprintex guys to email you their file and send it Mikel at DiabloSport and ask him to compare them side-by side just to make sure they aren't missing something.