well my car was running good after i put the valve seat in my 35mm tial, until 4 days later, started throwing codes, well i got the code checked and it was...map sensor seeing too much voltage. well im running the safc with dsm 450's at 7lbs boost. if i mess with the safc enough and start my car about 10 time, code will go away for about 15 minutes, then come back on, pretty much now it will only run/idle with the code on and runs like complete ****. what could this be, bad map sensor?

thanks

richard


Modified by civicb18 at 7:22 PM 12/1/2003


Modified by civicb18 at 7:22 PM 12/1/2003

 

ttt


Modified by civicb18 at 10:11 PM 12/1/2003

 

ttt

 

apparently no one knows

 

If the ECU is spitting out a "Voltage to high from MAP", then the settings on your VAFC are not correct. The VAFC trims the MAP voltage and when this voltage goes above ~2.8v, which equals atomspheric pressure, and since N/A motors don't produce boost, the ECU sets a code.

What are your settings for the VAFC?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EE_Chris &raquo;</TD></TR><TR><TD CLASS="quote">

What are your settings for the VAFC?</TD></TR></TABLE>

SAFC not VAFC, doesnt really matter though

well i have tried from -30% all the way across to -50% all the way across, but is what really gets me, it ran for about 3 weeks on settings between -36 to -42 with NO codes whatsoever and now, just like that, its throwing codes and runs like shiat

 

Try swapping in a different MAP sensor.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by VTC_CiViC &raquo;</TD></TR><TR><TD CLASS="quote">Try swapping in a different MAP sensor.</TD></TR></TABLE>

thats kind of what i was thinkin, any more ideas anyone?

 

up once more

and, where can i get a gm 3 bar?


Modified by civicb18 at 7:57 AM 12/3/2003

 

re-check wiring, and if u can try to borrow someone elses map sensor to try....It def. should not be spitting codes at -40...

 

what is the highest/lowest i should be able to run? and for voltage, what should my map see, high/low, WOT, idle, etc?

 

Check and recheck your wiring to make sure nothing is loose. Check all your 'etc' settings (ie., 6in 6out etc...) to make sure nothing has been reset to default values, then check your map sensor..

 

Like everyone else said, check wiring, it sounds like a wire came loose, because you said it worked fine and now its seeing too high voltage. Also, unless you plan on getting hondata, the gm map sensor won't work with the hack.

 

check afc cofiguration

 

thanks guys...im gonna check the wiring again, i already did once, but will again

 

check the configuration of the afc, if you reset it in anyway it will need to be resetup

 

well i figured out what was wrong...i had a bad o2 sensor therefore made map see too much voltage, just thought i would fill those in who have helped me out and who care..

thanks

richard

 

can you tell me what a faulty o2 sensor has to do with the map sensor voltage??? i don't understand this... maybe i have the same problem but i don't understand why this cause a too high voltage on the map sensor???

Thanks
Malte.

 

bump becuase i would like to kow also