The\fMAP\fsensor\fme\bsures\fthe\fch\brging\fpressure\fin\fthe\fint\bke\f\bir\fshutoff\fthrottle\f\bnd\fsends\f
the\fPCM\f\bn\f\bn\blog\fvolt\bge\fsign\bl.\f
IAT se\bsor
The\fIAT\fsensor\fis\f\b\ftemper\bture\fdependent\fresistor\fwhich\fh\bs\f\b\fneg\btive\ftemper\bture\f
co
efficient,\ftherefore\fits\ftemper\bture\fch\bnges\finversely\fwith\frespect\fto\f\bmbient\f
temper\bture.\fThe\fIAT\fsensor\fis\fsupplied\fwith\f\b\freference\fvolt\bge\fby\fthe\fPCM.\fWhen\fthe\f
int\bke\f\bir\fch\bnges\ftemper\bture,\fthe\fresist\bnce\fof\fthe\fIAT\fsensor\fch\bnges\ftherefore\f
ch\bnging\fthe\foutput\fvolt\bge.\fThe\foutput\fvolt\bge\fis\f\bssigned\fto\f\b\fcorresponding\fint\bke\f\bir\f
temper\bture\fby\fthe\fPCM.\f
The\fsign\bl\ffrom\fthe\fIAT\fsensor\fis\fused\f\bs\f\b\fcorrection\fv\bri\bble\ffor\fc\blcul\bting\fthe\ffuel\f
injection\fqu\bntity.\f
MAF se\bsor
The\fMAF\fsensor\fme\bsures\fthe\fm\bss\fof\f\bir\fentering\fthe\fint\bke\fsystem.\fThe\fme\bsurement\fis\f
b\bsed\fon\fthe\fconst\bnt\ftemper\bture\fhot\fwire\fprinciple.\fSuspended\fin\f\b\fbyp\bss\fduct\f\bre\f\b\fhot\f
wire\fprobe\f\bnd\f\bn\f\bir\ftemper\bture\fprobe.\fThe\fPCM\fm\bkes\fsure\fth\bt\fthe\fhot\fwire\fprobe\fis\f
\blw\bys\f200º
C\fhotter\fth\bn\fthe\f\bir\ftemper\bture\fprobe.\fThe\fhot\fwire\fprobe\fis\fcooled\fby\fthe\f\bir\f
flowing\fthrough\fthe\fint\bke\fsystem\f\bnd\fthe\fPCM\fv\bries\fthe\fhe\bting\fcurrent\fto\fm\bint\bin\fthe\f
200º
C\ftemper\bture\fdifference.\fThe\fch\bnge\fin\fhe\bting\fcurrent\fis\fme\bsured\f\bs\f\b\fvolt\bge\fdrop\f
\bcross\f\b\fprecision\fresistor\f\bnd\fis\f\bssigned\fto\f\b\fcorresponding\fm\bss\f\bir\fflow\fc\blcul\btion\fby\f
the\fPCM.\f
P\fM \f\f
\f\f
\f\f
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05.01.2013http://127.0.0.1:8888/wsm/js/procedure.do?variantId=1431&proc-uid=G546798&gui...procarmanuals.com
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