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how to replace 1999 mazda 626 camshaft position sensor

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1996 Ford Taurus Camshaft Position Sensor removal and installation manual

REMOVAL CAUTION: Prior to removal of the Camshaft Position (CMP) sensor, set cylinder No.1 to zero degrees Top Dead Center (TDC) of compression stroke. Then note the position of the CMP sensor electrical connector. The installation procedure requires that the connector be located in the same position. 1. Disconnect battery ground cable. NOTE: When the battery has been disconnected and reconnected, some abnormal drive symptoms may occur while the Powertrain Control Module (PCM) relearns its adaptive strategy. The vehicle may need to be driven 16 km (10 miles) or more to relearn the strategy. 2. Disconnect engine control sensor wiring connector from CMP sensor. 3. Remove retaining screws and CMP sensor from sensor housing. 4. If removing CMP sensor housing from the cylinder block, proceed with Removal Step 5. If not removing sensor housing, proceed to installation Step 6. 5. Remove hold-down clamp (bolt and washer assembly) . 6. Remove CMP sensor housing from cylinder block INSTALLATION CAUTION : A special service tool such as Syncro Positioning Tool T95T-12200-A must be obtained prior to installation of the replacement CMP sensor. Failure to follow this procedure will result in improper sensor alignment. This will result in the fuel system being out of time with the engine, possibly causing engine damage. 1. Attach Syncro Positioning Tool T95T-12200-A as follows: a. Engage CMP sensor housing vane into the radial slot of the tool. b. Rotate tool on CMP sensor housing until tool boss engages notch in sensor housing. 2. Pre-lubricate synchronizer gear with engine oil meeting Ford specification ESE-M2C123-A prior to assembly. 3. Install sensor housing so that drive gear engagement occurs when arrow on ocator tool is pointed approximately 75 degrees counterclockwise from the rear face of the cylinder block. This step will locate CMP sensor electrical connector in the pre-removal position. 4. Rotate Syncro Positioning Tool T95T-12200-A clockwise slightly. This will engage oil pump intermediate shaft. Push downward while adjusting Syncro Positioning Tool T95T-12200-A until the Syncro Gear engages the camshaft gear. 5. When synchronizer flange is fully seated against block, the installation tool should be facing counterclockwise of engine centerline approximately 33 to 45 degrees. 6. Install hold-down clamp (washer and bolt) and tighten bolt to 19-30 Nm (14- 22 lb ft)


ACTIONS: • If you only have DTC P0340, replace only Bank 1 CMP (Camshaft Position) Sensor. • If you only have DTC P0345, replace only Bank 2 CMP (Camshaft Position) Sensor. • If you have both codes, replace both sensors. • For a “hard to start warm” incident, replace both sensors, even if you have no codes. Refer to sections EC and EM in the correct Service Manual for sensor replacement information. If replacement of the sensors does not solve your incident, go back to ASIST for further diagnostic and repair information. PARTS INFORMATION DESCRIPTION PART # QUANTITY Camshaft Position Sensor- Bank 1 23731-6J906 1 Camshaft Position Sensor- Bank 2 23731-AL616 1 CLAIMS INFORMATION Submit a Primary Failed Part (PP) line claim using the following claims coding: DESCRIPTION PFP OP-CODESYSDIAFRT RPL One Camshaft Position Sensor (Bank 1 or Bank 2) (1) DE64AA AA 32 (2) RPL Both Camshaft Position Sensors (Banks 1 and 2) (1) DE67AA AA 32 0.3 hrs. (1) Reference the Parts Information table and use the indicated sensor P/N’s as the PFP. (2) Reference the current Nissan Warranty Flat Rate Manual and use the indicated FRT

Ford V8 Engines Performer RPM Hydraulic Roller Camshaft INSTALLATION INSTRUCTIONS

Disconnect the battery. 2. Drain radiator coolant. Drain plug will normally be located on lower right or left side of the radiator facing the engine. 3. Remove radiator and air conditioning condenser if so equipped. In some cases, the front grill may have to be removed. Measure distance from front cover to grill or brackets that may interfere with camshaft against the length of the camshaft. 4. Remove the gas cap to relieve pressure. Disconnect fuel line and plug. Replace gas cap. 5. Disconnect all linkage from carburetor such as throttle, throttle springs, transmission, cruise control and automatic choke. 6. Tag and remove coil wires and sensor wires. 7. Tag and remove vacuum lines. 8. Remove valve covers. 9. Remove distributor cap and wires, rotate engine until rotor points towards number 1 terminal in cap and pointer on front cover is on top dead center (TDC) and remove distributor. (see Fig. 1) Note: Mark the approximate position of the distributor housing in relation to the manifold to assist in getting the distributor properly located during re-installation. 10. Remove carburetor and intake manifold. Remove and discard intake manifold gasket. 11. Remove rocker arms and pushrods. CAUTION: If your engine has non-adjustable rocker arms (1969-1/2 or later), you must install screw-in studs and high performance •VALVE SPRINGS CAUTION: WARNINGS ABOUT YOUR WARRANTY In order for this Performer RPM roller cam to be covered under ANY WARRANTY, you MUST use the correct Valve Springs. Failure to install the correct valve springs may cause lifters not to follow the cam lobes and damage engine parts. This camshaft is designed to function with valve springs that have a closed pressure of 110 lbs, open pressure of 320 lbs and a lift of .575″. Special H.P. retainers may be necessary with your installation for proper spring height. Do not use rotator type valve springs or retainers for this application. Note: Edelbrock Sure Seat Valve Springs #5762 are not recommended.  IMPORTANT NOTES AFFECTING YOUR WARRANTY CAM LOBE DAMAGE – Cam lobe wear is almost non-existent unless mismatched parts are used or installation of the cam and lifters is done improperly. Cam damage can result from the timing gear loosening due to improper torque on bolts. Bolts holding gear to camshaft should be torqued carefully and a locking compound applied to threads of bolts. Before installing your new Performer-RPM roller camshaft, check the gear drive on the distributor and oil pump for any signs of wear. If worn, be sure to replace with a new gear or you may wear out your camshaft prematurely. High-pressure oil pumps are not recommended with Performer RPM roller camshafts. Edelbrock camshafts are designed to use with Edelbrock timing chains.  CAM GEARS AND CAMSHAFT END PLAY- If cam gear becomes loose, the cam will slide back in the block, causing the lifters to hit the lobes next to them and also the cam bearing journals. If the engine is run after this happens, the bottom of the lifters and the sides of the lobes will become damaged. See Installation Instructions section for end play specifications.  LIFTERS Edelbrock offers a retrofit roller lifter kit for engines not originally equipped with roller lifters. Use part #97453. To install your roller lifters, use fresh clean oil on the lifter and the lifter bore just prior to installing. The guide bar (high side of tappet) must face the opposite side of block. See roller lifter instructions for additional information. ( Note: 289-302 engines require removal of the cylinder heads to provide enough clearance to install roller lifters, which are taller than standard hydraulic lifters.)  PUSHRODS AND ROCKER ARMS High performance pushrods, roller rocker arms and rocker studs are recommended for this installation. After the cam is installed and timed correctly (see Figure 2), it will be necessary to check each pushrod for correct lifter preload. INSTALLATION INSTRUCTIONS 1. Check lifters as covered in Lifters section. Coat cam lobes with fresh clean oil. Lube distributor drive of cam with assembly lube (supplied). 2. Install new camshaft. Re-install thrust plate with new sprockets and timing chain with timing marks lined up as recommended by factory specifications (See Figure 2). Reinstall the fuel pump eccentric before installing sprocket bolt and washer

2001 Chevrolet Chevy K Silverado Crankshaft Position Sensor Engine Stall Service Procedure

Why is your vehicle being recalled? Your vehicle may have a condition in which the crankshaft position sensor can fail intermittently or permanently. If the sensor fails intermittently, the Service Engine Soon (SES) light may illuminate and the vehicle may run rough. In addition, the engine may stall, and if so, may re-start immediately or after a cool down period. If the sensor fails permanently, the engine will quit running and will not re-start. If this happens while the vehicle is moving, a crash could result without prior warning. What will we do? Your GM dealer will replace the crankshaft position sensor. This service will be performed for you at no charge . Because of service scheduling requirements, it is likely that your dealer will need your vehicle longer than the actual service correction time of approximately one hour and twenty minutes. What should you do? You should contact your GM dealer to arrange a service appointment as soon as possible. Bring the enclosed customer reply form with you when you visit your dealer. The form identifies the repairs required. If you no longer own this vehicle, please let us know by completing the form and mailing it back to us. Did you already pay for this repair? The enclosed form explains what reimbursement is available and how to request reimbursement if you have paid for repairs for the recall condition.

1999-2006 Volkswagen A4 Engine Speed Sensor G28 Checking

Special tools, testers and auxiliary items required Multimeter . Wiring diagram. Test requirements The Motronic Engine Control Module (ECM) J220 fuses OK. Battery voltage at least 12.5 volts. All electrical consumers such as, lights and rear window defroster, switched off. Vehicles with automatic transmission, shift selector lever into position “P” or “N” . A/C switched off. Ground (GND) connections between engine/transmission/chassis OK. Ignition switched off. Test procedure Perform a preliminary check to verify the customers complaint. Refer to Preliminary Check Start diagnosis The Engine Speed (RPM) Sensor G28 detects RPM and reference marks. Without an engine speed signal, the engine will not start. If the engine speed signal fails while the engine is running, the engine will stop immediately Function test Connect the scan tool. Switch the ignition on. Using the scan tool, check the engine speed: End diagnosis and switch ignition off. If the specified value was not obtained: Checking internal resistance Disconnect the gray Engine Speed (RPM) Sensor G28 electrical harness connector 7 arrow 7 . Using a multimeter , check the Engine Speed (RPM) Sensor G28 terminals 2 to 3 7 see insert 7 for resistance. Specified value: 0.7 to 1000 kOhm Check Engine Speed (RPM) Sensor G28 terminals 1 to 2 and 1 to 3 for short circuits. Specified value: ? (infinity) If any of the specified values are not obtained: Replace the Engine Speed (RPM) Sensor G28 . Refer to Engine Mechanical, Fuel Injection and Ignition 7 Repair Group 13 . If the specified values are obtained: Checking wiring If the manufacturers test box is being used. Perform the following step. Install the test box Adapter F/VAG1598 (68 Pin) VAG1598/22 . If the manufacturers test box is not being used. Perform the following step. Remove the Motronic Engine Control Module (ECM) J220 . Refer to Motronic Engine Control Module J220, Replacing .