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238
I. ENGINE
CONTROL
MODULE
This procedure relates to removal and installation
of the ECM--see Diagnostic Scan Tool for access-
ing ECM software.
REMOVAL PROCEDURE
ECM
1. Disconnect the negative battery cable.
2. Disconnect the electrical connectors from the
ECM. Rotate the locking tabs on each connec-
tor to unlock the electrical connectors.
Disconnect the connector closest to the nega-
tive battery terminal first. Disconnect the
center connector second. Disconnect the con-
nector closest to the positive battery terminal
last.
3. Remove the screws securing the ECM,
INSTALLATION PROCEDURE
1.
Place the ECM in position and secure with
screws. Tighten the nuts to 9 to 11 N•m
(79.66 to 97.36 in. lbs).
2. Connect the electrical connectors to the ECM.
Connect the electrical connector closest to the
positive battery terminal first. Connect the cen-
ter connector second. Connect the connector
closest to the negative battery terminal last.
Rotate the locking tabs to lock the electrical
connectors in position.
3. Connect the negative battery cable.
4. Turn the ignition key to the ON position
5. Start the vehicle and check for proper opera-
tion of the electronic throttle body and the
ECM by exercising the accelerator pedal with
the vehicle in neutral.
II. FUSE BOX MOUNTING BRACKET
REMOVAL PROCEDURE
1. Disconnect the negative battery cable
2. Remove the four Screws, Washers and
Spacers securing the ECM to the Bracket.
3. Remove the two Bolts securing the Fuse Box
bracket to the Coil Bracket.
INSTALLATION PROCEDURE
1.
Secure the Coil Bracket and Fuse Box bracket
by placing with two Bolts to the engine.
Tor-
que 29.5-36.8 ft.lbs. (40-50 Nm).
2. Attach the Fuse Box with four Screws (if re-
moved).
Torque to 2-3 ft. lbs. (2.7-4 Nm).
III. ENGINE WIRE HARNESS REPLACEMENT
1.
Disconnect negative battery cable.
2. Lay out the new Wire Harness, noting the lo-
cation, type of connectors, and identifying
markings. Take special note of identical or
similar connectors (such as the coils or HEGO
Sensors) to avoid crossing connections during
installation. NOTE the routing of the existing
wire harness in and around the engine and the
vehicle. Refer to the Electrical Schematic.
Содержание 3.0L GM
Страница 4: ...4 ...
Страница 5: ...5 General Information ...
Страница 9: ...9 Maintenance ...
Страница 16: ...16 ...
Страница 17: ...17 LPG Fuel System ...
Страница 18: ...18 LPG FUEL SYSTEM OPERATION ...
Страница 25: ...25 LPG Closed Loop Schematic ...
Страница 26: ...26 ...
Страница 27: ...27 LPG System Diagnosis ...
Страница 35: ...35 Fuel Symptom Diagnostics ...
Страница 51: ...51 Electrical Section ...
Страница 52: ...52 ...
Страница 53: ...53 DST Diagnostic Scan Tool ...
Страница 59: ...59 Select the USB button then click the OK box Click on the Search attached device box ...
Страница 67: ...67 When connected the live data stream appears in the Value column ...
Страница 78: ...78 ...
Страница 80: ...80 ...
Страница 81: ...81 Engine Wire Schematic ...
Страница 82: ...82 2011 3 0L GM Engine IMPCO Emission Certified LPG Fuel System ...
Страница 83: ...83 ...
Страница 84: ...84 ...
Страница 85: ...85 Engine Wire Harness Repair ...
Страница 89: ...89 Diagnostic Trouble Codes DTCs ...
Страница 93: ...93 ...
Страница 101: ...101 ...
Страница 105: ...105 ...
Страница 109: ...109 ...
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Страница 217: ...217 ...
Страница 221: ...221 ...
Страница 225: ...225 ...
Страница 229: ...229 ...
Страница 237: ...237 Servicing the Fuel System ...
Страница 254: ...254 ...
Страница 255: ...255 LPG Parts Diagram ...
Страница 256: ...256 THROTTLE BODY ASSEMBLY ...
Страница 258: ...258 FUEL RAIL INJECTORS ...
Страница 260: ...260 REGULATOR ASSEMBLY ...
Страница 262: ...262 HOSE ASSEMBLIES COOLANT VACUUM FUEL ...
Страница 264: ...264 THERMOSTAT HOUSING ...
Страница 266: ...266 ENGINE CONTROL MODULE ...
Страница 267: ...267 ENGINE CONTROL MODULE Item Description Qty IMPCO Part Number 1 ECM Liugong 1 A11 173 ...
Страница 268: ...268 SENSORS 4 1 3 6 5 2 7 ...
Страница 270: ...270 DISTRIBUTOR ...
Страница 272: ...272 FUSE BOX BRACKET ...
Страница 274: ...274 IGNITION COIL ...
Страница 275: ...275 IGNITION COIL Item Description Qty Part Number 1 Coil Ignition 1 7245530 ...
Страница 276: ...276 MANIFOLDS ...
Страница 278: ...278 WIRE HARNESS FUSES FUSE BOX COVER Fuse Box Layout 4 ...
Страница 280: ...280 PCV VENT VALVE ...
Страница 282: ...282 MISCELLANEOUS ENGINE ...
Страница 284: ...284 ALTERNATOR ...
Страница 286: ...286 STARTER ...
Страница 291: ...291 ...
Страница 292: ...292 3 0L UPPER ...
Страница 294: ...294 3 0L LOWER ...
Страница 298: ...298 ...
Страница 299: ...299 Labor Time Guide ...
Страница 317: ...317 Definitions ...
Страница 322: ...322 ...
Страница 323: ...323 Appendix ...
Страница 327: ...327 DTC SPN FMI Chart ...