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SERVICE INFORMATION If an applied vehicle exhibits: Engine coolant under the vehicle when parked Smell of coolant when engine is warm, The cause may be coolant leaking between the water outlet housing and intake manifold sealing surfaces (see Fig. 1 ). Refer to the SERVICE PROCEDURE to resolve this incident, should it occur. NOTE: A leak from the above noted area can be verified by a visual inspection.Fig. 1: Intake Manifold Water Outlet SERVICE PROCEDURE Install the new fiber gasket (refer to the PARTS INFORMATION section) between the water outlet housing and intake manifold as follows: CAUTION: Be careful not to spill engine coolant on electrical connectors, drive belts, etc. when performing the following procedure.

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SERVICE PROCEDURE 1. Set the parking brake. 2. Connect C-III to the vehicle. 3. Use C-III to check for Air Bag DTCs. a. Navigate C-III to Air Bag Direct Diagnostic Mode. b. Make sure to check both SELF DIAG RESULTS and SELF-DIAG [PAST]. • SELF-DIAG [PAST] is under Special function. • If there are any DTCs stored for AIR BAG other than B1033, B1034 and/or B1035, perform repairs as needed, and then erase DTC before continuing with this procedure. • Diagnosis and repair for DTCs other than B1033, B1034, and/or B1035 is not covered by this bulletin. NOTE: All DTCs (except B1033, B1034, and B1035) must be repaired and erased before continuing with this procedure. 4. Disconnect C-III from the vehicle. 5. Start the engine and let it idle for about 5 seconds. 6. Turn the ignition OFF. 7. WARNING: Prep the vehicle for Crash Zone Sensor replacement as follows: The following are VERY IMPORTANT to prevent unexpected air bag deployment. • Remove the ignition key / Intelligent Key from the cabin of the vehicle and set aside, away from the vehicle (this will prevent accidentally turning the ignition ON). • Make sure the ignition remains OFF until after the new sensor is completely installed. • Make sure no one is in the vehicle cabin and no one enters the vehicle cabin until after the sensor is completely installed. • Wait for all control units to “power down” (at least 1 minute) before continuing. 8. Locate the Crash Zone Sensor (see Figure 2). Crash Zone Sensor Cover 9. Remove the 2 Crash Zone Sensor nuts shown in Figure 3. • Discard these nuts. They will not be reused. 10. Remove the Crash Zone Sensor Cover. 11. Disconnect the electrical connector shown in Figure 4.

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some 2000-2002 model year Nissan Sentra vehicles equipped with the 1.8 liter engine and some 2002-2003 model year Nissan Sentra vehicles equipped with the 2.5 liter engine may have a defect which relates to motor vehicle safety. The engine might stop running while being driven due to contamination of the Engine Control Module (ECM) by the inner lining material. This may also result in the “Service Engine Soon” light coming on or poor driveability. If the engine stops running while driving, this could result in a crash without warning. SERVICE PROCEDURE Remove/discard the Foam from the inside of the ECM Case Holder as follows. The ECM Case Holder will have to be re-positioned (moved) to do this procedure. NOTE: • Use suitable covers to protect vehicle paint, trim, etc. when doing this procedure. • Step one (below) only applies to vehicles equipped with a Strut Tower Cross Bar. • Doing step one will allow clearance for removing the ECM Case Holder from the engine room wall. 1. If equipped, re-position the Strut Tower Cross Bar and remove the Strut Tower Cross Bar Mounting Bracket as follows: a. Remove the nut/bolt that holds the Strut Tower Cross Bar to the Strut Tower Cross Bar Mounting Bracket (see Figure 1). b. Reposition the Strut Tower Cross Bar UP and OUT of the way. c. Take off three Nuts and remove the Strut Tower Cross Bar Mounting Bracket (see Figure 2). 2. Remove two Screws that hold the Main Wiring Harness Support Bracket to the Strut Tower (see Figure 3). 3. Disconnect the Rubber Vent Tube from the ECM Case Holder (see Figure 4). 4. If equipped, remove two Screws and re-position the Manifold Absolute Pressure (MAP) Sensor (see Figure 5). 5. Re-position the Throttle Cable Guide by removing it from the Metal Tab (see Figure 5).

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IF YOU CONFIRM: • DTC P0400 (EGR) or P0402 (EGRC-BPT Valve) is stored in the ECM, and/or • The vehicle exhibits rough running or other drivability incidents, and/or • Difficulty in setting the EGR System Readiness Test (SRT) status to CMPLT. ACTION: Clean the intake manifold EGR ports.SERVICE PROCEDURE 1. Remove the throttle chamber assembly and place it aside. • Refer to the EM section of the appropriate Service Manual (ESM). NOTE: It is not necessary to completely remove the throttle chamber assembly. • Only remove harness connectors, cables, and hoses necessary to allow the throttle chamber assembly to be placed aside. • Throttle chamber coolant hoses do not need to be removed. NOTE: Figure 1 gives a general location of the plugs for the EGR ports, but the plugs are not visible in the photo. 2/4 2. Remove the EGR valve mounting bolts and then move the EGR valve outward about ½ inch (see Figure 2). • This is so you can remove the plug for the “rear most” EGR port. NOTE: You don’t need to completely remove the EGR valve. Rear Most EGR Port. EGR Valve EGR Mounting Bolts Move about ½ inch. Figure 2 3. Remove the plugs for the EGR ports (see Figure 3). Figure 3

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IF YOU CONFIRM • After a ‘cold soak’,* the engine cranks (turns with starter), but does not start. *Cold soak: Engine has cooled down to ambient (outside) temperature, regardless of summer or winter seasonal variations. • The engine may start if it is cranked for an extended period (more than 5 seconds) or if the throttle is opened during cranking. • After starting and operating for a few minutes the engine runs normally. ACTIONS • Replace the starter motor. • Add 1 can of Nissan Fuel System Cleaner into the fuel tank. • Perform ECM Part Number Check to see if the vehicle you are working on needs ECM Reprogramming. • Perform ECM Reprogramming, if needed. SERVICE PROCEDURE Replace Starter, Add Cleaner 1. Replace the starter motor. • Use the part number from the Parts Information section of this bulletin. • Refer to section SC, “STARTING SYSTEM, Removal and Installation” in the applicable Nissan Electronic Service Manual (ESM). 2. Add one full can of Nissan In-Tank Fuel System Cleaner to the fuel. NOTE: If the fuel tank is less than ¾ full, instruct the customer to fill the tank as soon as it is convenient after the repair. Driving with the Cleaner installed and low fuel level will not harm the fuel system or engine, but will reduce the effectiveness of the cleaning process. 3. Continue to ECM Part Number Check (next page).