ELECTRONIC FUEL INJECTION (MULTI-PORT AND THROTTLE BODY) - 5E-93
90-823225--1 1096
Code 33: MAP Circuit (Non-Scan)
(2 of 2)
CONNECT DVM
BETWEEN HARNESS
TERMINAL “B” AND
ENGINE GROUND.
IS VOLTAGE OVER 4
VOLTS?
YES
YES
NO
NO
FAULTY CONNECTION AT ECM
OR
CKT 416 OPEN
OR
SHORTED TO GROUND
OR
FAULTY ECM.
YES
CKT 432
SHORTED
TO VOLTAGE.
OPEN CKT 432
OR
FAULTY
CONNECTION
AT ECM
OR
FAULTY ECM.
1
3
•
IGNITION “OFF.”
•
CONNECT A TEST LIGHT TO
BATTERY POSITIVE B+.
•
TOUCH TEST LIGHT TO HARNESS
TERMINAL “B” (MAP SENSOR
SIGNAL). IS TEST LIGHT “ON”?
•
IGNITION “OFF.”
•
DISCONNECT VACUUM PLUG LOCATED UNDER
PLENUM AT FRONT AND INSTALL A VACUUM
GAUGE IN THE VACUUM PORT.
•
START ENGINE AND RAISE RPM TO ABOUT 1000
RPM. VACUUM GAUGE READING SHOULD BE 14in.
Hg (45.5 kPa) OR MORE AND STEADY. IS IT?
REPAIR LOW OR UNSTEADY
VACUUM PROBLEM.
2
NO
YES
NO
•
DISCONNECT ECM.
•
TOUCH TEST LIGHT
CONNECTED TO
BATTERY POSITIVE
B+ TO HARNESS
TERMINAL “B”.
IS TEST LIGHT
“ON”? SEE NOTE
MAP
SENSOR
FAULTY.
NO
CKT 432 SHORTED
TO GROUND.
FAULTY ECM.
•
IGNITION “OFF.”
•
REMOVE VACUUM GAUGE AND REINSTALL VACUUM
PLUG IN VACUUM PORT.
•
DISCONNECT MAP SENSOR ELECTRICAL CONNECTOR.
•
IGNITION “ON.”
•
CONNECT A DVM FROM HARNESS TERMINAL “C” (CKT
416, 5 VOLT REFERENCE) TO HARNESS TERMINAL “A”
(CKT 814, SENSOR GROUND).
IS VOLTAGE READING OVER 4 VOLTS?
YES
NO
•
CONNECT DVM FROM MAP SENSOR HARNESS
TERMINAL “C” TO A GOOD GROUND ON ENGINE.
IS VOLTAGE OVER 4 VOLTS?
•
CONNECT DVM FROM HARNESS TERMINAL “C”
(CKT 416) TO HARNESS TERMINAL “B” (MAP
SENSOR SIGNAL, CKT 432).
IS VOLTAGE READING OVER 4 VOLTS?
FAULTY CONNECTION
AT ECM
OR
CKT 814 OPEN
OR
FAULTY ECM.
YES
NO
4
5
6
NOTE: USING A TEST LIGHT WITH 100 mA OR LESS RATING MAY
SHOW A FAINT GLOW WHEN TEST ACTUALLY STATES NO LIGHT.
Содержание 305 CID
Страница 7: ...A 1 72000 IMPORTANT INFORMATION GENERAL INFORMATION...
Страница 16: ...B 1 IMPORTANT INFORMATION MAINTENANCE...
Страница 59: ...C 1 IMPORTANT INFORMATION TROUBLESHOOTING...
Страница 92: ...A 2 72975 REMOVAL AND INSTALLATION MCM MODELS ALPHA ONE DRIVES...
Страница 103: ...B 2 70246 REMOVAL AND INSTALLATION MCM MODELS ALPHA ONE DRIVES WITH DRIVESHAFT EXTENSION...
Страница 120: ...2 72580 C REMOVAL AND INSTALLATION MCM MODELS BRAVO DRIVES...
Страница 135: ...D 2 70246 REMOVAL AND INSTALLATION MCM MODELS BRAVO DRIVES WITH DRIVESHAFT EXTENSION...
Страница 154: ...E 2 70648 REMOVAL AND INSTALLATION MIE MODELS VELVET DRIVE TRANSMISSIONS...
Страница 173: ...F 2 25280 REMOVAL AND INSTALLATION MIE MODELS HURTH TRANSMISSIONS...
Страница 189: ...A 3 72615 ENGINE 5 0L 305 CID 5 7L 350 CID...
Страница 192: ...3A 0 ENGINES 90 823225 1 1096...
Страница 266: ...ELECTRICAL SYSTEMS STARTING SYSTEM A 72079 4...
Страница 284: ...STARTING SYSTEM 4A 17 90 823225 1 1096 THIS PAGE IS INTENTIONALLY BLANK...
Страница 308: ...B 4 72722 90 823224 692 4B IGNITION SYSTEM ELECTRICAL SYSTEMS THUNDERBOLT IV AND V IGNITION SYSTEM...
Страница 334: ...C 4 72078 ELECTRICAL SYSTEM CHARGING SYSTEM...
Страница 344: ...CHARGING SYSTEM 4C 9 90 823225 1 1096 THIS PAGE IS INTENTIONALLY BLANK...
Страница 360: ...D 4 72747 ELECTRICAL SYSTEM INSTRUMENTATION...
Страница 380: ...E 4 72761 ELECTRICAL SYSTEM ELECTRICAL KITS...
Страница 393: ...F 4 72938 ELECTRICAL SYSTEMS WIRING DIAGRAMS...
Страница 427: ...A 5 50830 90 823224 692 5A FUEL DELIVERY SYSTEMS AND FUEL PUMPS FUEL SYSTEM FUEL DELIVERY SYSTEMS AND FUEL PUMPS...
Страница 438: ...B 5 72681 FUEL SYSTEM MERCARB 2 BARREL CARBURETOR...
Страница 467: ...C 5 72085 FUEL SYSTEMS ROCHESTER 4 BARREL CARBURETOR...
Страница 497: ...D 5 70389 90 823224 692 5B WEBER 4 BARREL CARBURETOR FUEL SYSTEMS WEBER 4 BARREL CARBURETOR...
Страница 538: ...5 71692 E FUEL SYSTEMS MULTI PORT AND THROTTLE BODY FUEL INJECTION...
Страница 541: ...90 823225 1 1096 5E 0 ELECTRONIC FUEL INJECTION MULTI PORT AND THROTTLE BODY THIS PAGE IS INTENTIONALLY BLANK...
Страница 558: ...ELECTRONIC FUEL INJECTION MULTI PORT AND THROTTLE BODY 5E 17 90 823225 1 1096 THIS PAGE IS INTENTIONALLY BLANK...
Страница 591: ...90 823225 1 1096 5E 50 ELECTRONIC FUEL INJECTION MULTI PORT AND THROTTLE BODY THIS PAGE IS INTENTIONALLY BLANK...
Страница 727: ...F 5 73662 FUEL SYSTEMS BOS SAV EMISSIONS...
Страница 744: ...A 6 22381 COOLING SYSTEM SEAWATER COOLING MODELS...
Страница 773: ...B 6 72987 COOLING SYSTEM CLOSED COOLED MODELS...
Страница 823: ...A 7 72699 EXHAUST SYSTEM GENERAL...
Страница 828: ...THIS PAGE IS INTENTIONALLY BLANK TO ALLOW FOR CORRECTIONS OR ADDITIONS AT A LATER DATE 7A 4 GENERAL 90 823225 1 1096...
Страница 829: ...B 7 72695 EXHAUST SYSTEM MANIFOLDS AND ELBOWS...
Страница 835: ...C 7 70593 EXHAUST SYSTEM RISERS...
Страница 843: ...THIS PAGE IS INTENTIONALLY BLANK TO ALLOW FOR CORRECTIONS OR ADDITIONS AT A LATER DATE RISERS 7C 7 90 823225 1 1096...
Страница 844: ...D 7 72737 EXHAUST SYSTEM COLLECTORS...
Страница 855: ...THIS PAGE IS INTENTIONALLY BLANK TO ALLOW FOR CORRECTIONS OR ADDITIONS AT A LATER DATE 7D 10 COLLECTORS 90 823225 1 1096...
Страница 856: ...A 8 DRIVES VELVET DRIVE IN LINE TRANSMISSION...
Страница 869: ...B 8 DRIVES VELVET DRIVE V DRIVE AND WALTER V DRIVE TRANSMISSION...
Страница 882: ...C 8 25280 DRIVES HURTH DOWN ANGLE TRANSMISSION...
Страница 932: ...E 8 DRIVES DRIVE SHAFT PROPELLER SHAFT MODELS...
Страница 947: ...A 9 72951 POWER STEERING PUMP...