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[Backyard Mechanic]

While this isnt complete, it should help...


ABS Anti-Lock Braking System.
ACT Air Charge Temperature (intake air, after filter)
ATX Automatic Trans.
BAP Barometric (atmosphere) Air Pressure sensor
CC Cruise Control
CCS
CEL Check Engine Light.
CFI Central Fuel Inj, also called Throttle Body inj
CPS Camshaft (or Crankshaft) Position Sensor - used for ignition, injection
timing
DPFE Differential Pressure Feedback, Exhaust - measures EGR flow
EECIV The Engine/Trans Computer system used from mid-80's - mid 90's
ECM Engine control Module (before trans control > PCM)
EFI Electronic fuel injection
EGO Exhaust Gas Oxygen sensor, also called O2 sensor
EGR Exhaust Gas Recirculation (valve).- reduce emissions by lowering
combustion temperatures
ECT Engine Coolant Temperature sensor
EGRVPS EGR Valve Position Sensor tells ECM/PCM how far the EGR valve is open
(Non-DPFE applications)
FP Fuel Pump
FPR Fuel Pressure Regulator
HEGO Heated Exhaust Gas Oxygen sensor, heated to reach op temp earlier, also
called O2 sensor
IAC Idle Air Control (valve). Also referred to previously as ISC, IABP
IAT Intake Air Temperature (sensor).
IMRC Intake Manifold Runner Control (late model, multi-valve variable
induction)
MAF Mass Air Flow (sensor).
MAP Manifold Air Pressure sensor..used in engines without MAF (speed-
density systems)

MTX Manual Trans
OBDII Standardized powertrain control system from mid 90's (depend on model)
PCM Powertrain Control Module (engine AND trans EEC).
PCV Positive Crankcase Ventilation (valve).
PIP Profile Ignition Pick-up - dist position pickup, ALSO the pulse sent TO
the ECM
SPOUT Spark Output, the ignition timing pulse sent back to the ignition
module based on PIP, engine RPM and sensor input
TB Throttle Body.
TC Traction Control.
TFI Thick Film Ignition - Ignition module used with EECIV, side of dist on
most models, remote on some later models.
TPS Throttle Position Sensor.
VSS Vehicle Speed sensor (with or instead of speedo cable)

Test terms:
KOEO Key On Engine OFF, pulls memory codes
KOER Key On Engine RUNNING, real time error info
WOT Wide Open Throttle.
Goose Test during KOER to test throttle position sensor and engine response
STI Self Test input, EEC - ground to start test
STO Self Test Output some time same electrical lead as the CEL, but
carries the test pulse or data.

Any other common terms I missed, feel free to reply

[JS]

"Backyard Mechanic" <pettyfog@Yaywho.com> wrote in message
news:Xns959DE1801316BkMch6d@207.115.63.158...

[Jim Warman]

CCS - cruise control switch
TCS - transmission control switch... also known as
OCS - overdrive cancel switch
MLP - manual lever position sensor
TSS - turbine shaft speed sensor
OSS - output shaft speed sensor
EPC - electronic pressure control solenoid (inside trans)
HFCM - horizontal fuel conditioning module - oops, sorry... that's for
diesels
BPP - brake pedal position sensor.... used to be called
BOO - brake on/off switch
CHT - cylinder head temperature sensor
EOT - engine oil temperature
MPLearn - misfire profile learn
SAW - spark angle word signal
IVD - interactive vehicle dynamics
CMDTC - continuous memory diagnostic trouble code - a problem that the PCM
has seen but may not be present now
ODDTC - on demand code - a problem that is present at the time of the test
CMP - camshaft position sensor
CKP - crankshaft position sensor
BPS - brake pressure sensor
PPS - power steering pressure switch
VCT - variable cam timing solenoid
FPM - fuel pump module
FPS - fuel pressure sensor
VSM - vehicle security module
LCM - lighting control module
DSM - drivers seat module


Actually, there seems to be new ones born every day...... toss in the
special requirements for diesel and turbocarged applications, it can be hard
to keep up.

[F.H.]

"Backyard Mechanic" <pettyfog@Yaywho.com> wrote in message

While this isnt complete, it should help...

ABS Anti-Lock Braking System.
ACT Air Charge Temperature (intake air, after filter).
ATX Automatic Trans.
BAP Barometric (atmosphere) Air Pressure sensor.
BPP - brake pedal position sensor.... used to be called BOO - brake
on/off switch.
BPS - brake pressure sensor.
CC Cruise Control.
CCS Cruise Controm Switch.
CEL Check Engine Light.
CFI Central Fuel Inj, also called Throttle Body inj.
CPS Camshaft (or Crankshaft) Position Sensor - used for ignition,
injection timing.
CHT - cylinder head temperature sensor.
CKP - crankshaft position sensor.
CMDTC - continuous memory diagnostic trouble code - a problem that the
PCM has seen but may not be present now.
CMP - camshaft position sensor.
DPFE Differential Pressure Feedback, Exhaust - measures EGR flow.
DSM - drivers seat module
EECIV The Engine/Trans Computer system used from mid-80's - mid 90's.
ECM Engine control Module (before trans control > PCM).
EFI Electronic fuel injection.
EGO Exhaust Gas Oxygen sensor, also called O2 sensor.
EGR Exhaust Gas Recirculation (valve).- reduce emissions by lowering
combustion temperatures.
ECT Engine Coolant Temperature sensor.
GRVPS EGR Valve Position Sensor tells ECM/PCM how far the EGR valve is
open (EGRVPS is
more commonly referred to as EVP) (Non-DPFE applications).
EOT - engine oil temperature.
EPC - electronic pressure control solenoid (inside trans).
FP Fuel Pump.
FPM - fuel pump module.
FPR Fuel Pressure Regulator.
FPS - fuel pressure sensor.
HEGO Heated Exhaust Gas Oxygen sensor, heated to reach op temp earlier,
also called O2 sensor.
IAC Idle Air Control (valve). Also referred to previously as ISC, IABP.
IAT Intake Air Temperature (sensor).
IVD - interactive vehicle dynamics.
IMRC Intake Manifold Runner Control (late model, multi-valve variable
induction).
LCM - lighting control module.
MAF Mass Air Flow (sensor).
MAP Manifold Air Pressure sensor..used in engines without MAF
(speed-density systems)
MLP - manual lever position sensor.
MPLearn - misfire profile learn.
MTX Manual Trans.
OBDII Standardized powertrain control system from mid 90's (depend on
model)
ODDTC - on demand code - a problem that is present at the time of the test.
OSS - output shaft speed sensor.
PCM Powertrain Control Module (engine AND trans EEC).
PCV Positive Crankcase Ventilation (valve).
PIP Profile Ignition Pick-up - dist position pickup, ALSO the pulse
sent TO the ECM
PPS - power steering pressure switch.
SAW - spark angle word signal.
SPOUT Spark Output, the ignition timing pulse sent back to the ignition
module based on PIP, engine RPM and sensor input.
TB Throttle Body.
TC Traction Control.
TCS - transmission control switch... also known as OCS - overdrive
cancel switch.
TFI Thick Film Ignition - Ignition module used with EECIV, side of
dist on most models, remote on some later models.
TPS Throttle Position Sensor.
TSS - turbine shaft speed sensor.
VCT - variable cam timing solenoid.
VSM - vehicle security module.
VSS Vehicle Speed sensor (with or instead of speedo cable).

*Test terms*:
KOEO Key On Engine OFF, pulls memory codes
KOER Key On Engine RUNNING, real time error info
WOT Wide Open Throttle. Goose Test during KOER to test throttle
position sensor and engine response.
STI Self Test input, EEC - ground to start test
STO Self Test Output some time same electrical lead as the CEL, but
carries the test pulse or data.

[MasterBlaster]

"Backyard Mechanic" wrote