hego heated exuast gas oxygen kapwr keep alive power bpw base pulse width vats vehicle anti theft system -----Original Message----- From: Bruce Plecan [mailto:nacelp@bright.net] Sent: Saturday, June 17, 2000 8:58 PM To: gmecm@diy-efi.org Subject: Abbrviations General EFI FAQ again Abbreviations, that are used in general ecm conversations ABS Anti skid Braking AE Accleration Enrichment AIT Air Intake Temp CPU Central Processor Unit (the brains in the ecm) CTS Coolant Temp Sensor DC Duty Cycle On time, compared to total event time expressed as a percent DFCO Decleration Fuel Cut Off DIS Distributorless Ignition System ECM Engine Control Module ECU Engine Control Unit EFI Elecronic Fuel Injection EGR Exhuast Gas Recirculation EGT Exhuast Gas Temp EPROM Erasable Programable Read Only Memory HEI High Energy Ignition Injector On Time Time in milliseconds that an injector is on. MAF Mass Air Flow MAP Manifold Absolete Pressure MAT Manifold Air Temp O2 Sensor for detecting rich lean exhuast mixtures, gm so far uses this type, and it has a high slew rate and therfore is more of a swich OTS Oil Temp Sensor RAM Randon Access Memory ROM Read Only Memory P+H one way of firing an injector High initial voltage to open then a lower to keep it open PCM Powertrain Control Module (engine and trans control) PE Power Enrichment Port, MPFI, Multi Port, each cyl has it's own injector close to intake valve TBI Injection system where the injectors are mounted above the butterflies TCC Torque Converter Clutch TCM Transmission Control Module TPS Throttle Posistion Sensor SEFI Sequential Electronic Fuel Injection SI Saturated Injector *constant* voltage current WB O2 this sensor differs from the O2 in so far that it is designed for a *linear* ouput WOT Wide Open Throttle ---------------------------------------------------------------------------- To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes) in the body of a message (not the subject) to majordomo@lists.diy-efi.org
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