when you push more boost than your oem map sensor can register, it shows itself as a map sensor cel, correct? cause i pushed a little over 10 psi tonight, and all of a sudden i was getting a code 3 and my car was running like ****. once i reset the ecu, the light went off and everything was fine. so, i need a gm 3 bar map sensor, right? and if that is what i need, what do i ask for at the parts store? what is it off of, or what is the part number, or is there some other way of distinquishing it? thanks.

 

yeah im in the same boat with u my map sensor cuts out and my car rides like crap im tryen to find a way to make it perfect without one way valves or a missing link did u ever get a good map sensor

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kell211 &raquo;</TD></TR><TR><TD CLASS="quote">when you push more boost than your oem map sensor can register, it shows itself as a map sensor cel, correct? cause i pushed a little over 10 psi tonight, and all of a sudden i was getting a code 3 and my car was running like ****. once i reset the ecu, the light went off and everything was fine. so, i need a gm 3 bar map sensor, right? and if that is what i need, what do i ask for at the parts store? what is it off of, or what is the part number, or is there some other way of distinquishing it? thanks. </TD></TR></TABLE>

you are correct, wire in a 3 bar

Rob

 

what u could do is by a missing link for about 60 bucks or be real cheap and spend about ten dollars or less on some check valves in between the map sensor and throttle body

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by integb20vtec-t &raquo;</TD></TR><TR><TD CLASS="quote">what u could do is by a missing link for about 60 bucks or be real cheap and spend about ten dollars or less on some check valves in between the map sensor and throttle body
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that will only work if you are using a crappy FMU setup.


Rob

 

what 3 bar map sensor do i buy? is there a certain brand or what? and for that matter, how much do they usually cost?

 

and out of curriosity, is there any other problems i should concider or does everyone think it's probably the map sensor? i've run the car at that boost level before without getting a code. is this just luck or what? what all could cause the map cel to come on, and then go away after i reset the ecu?

 

what fuel managment are you using, did you say FMU? The GM 3bar map sensor will not work plug-and-play the voltage levels it puts out are completely wrong for your ecu, so you need to reprogram you ecu or your stand-alone to interpret the new signal.

-PHiZ

 

i'm using an e-manage with the profec.

 

bump