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2002-2004 Nissan Altima W/QR25 ENGINE; NO-START AFTER ‘COLD SOAK’

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Filed Under (Nissan) by admin on 29-11-2010

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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).

1992–1995 Suzuki Samurai Engine Swap Wire Harness Instructions 1.6L, 16-Valve

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Filed Under (Suzuki) by admin on 26-05-2011

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Much has been written about swapping Suzuki’s G16B 1.6 liter 16-valve engine into the Samurai. It is mechanically very simple (as engine swaps go) but the wiring can be a daunting challenge for many. To date it has been necessary for the DIY builder to perform extensive research, gather all the information they can find, try to make sense of it, and take their best shot (or pay someone that has already done it). There is no one “correct” way to make this engine swap. The variations are nearly endless. Much of it involves personal preference. What is presented here is a process that is known to be successful, along with some of the more familiar options. ALL WIRING SHOULD BE DONE WITH THE BATTERY REMOVED FROM THE VEHICLE 1.1. It is HIGHLY RECCOMMENED that you purchase the appropriate Field Service Manual for your engine model year (either digital or print copy). Though there are only two sections that are relevant to a transplanted engine the information is absolutely invaluable. Much – but not all – of the required Information is also available in most aftermarket vehicle specific service manuals (Haynes, Chilton’s, etc.) The pertinent sections (6 & 8) of the 1996 Tracker FSM may be downloaded for free from Acksfaq.com (donations are appreciated). 1.2. 1992 through 1998 Suzuki/Geo (GM) vehicles with G16B (1.6 liter 16-valve) engines can be identified by the 8th digit in the Vehicle Identification Number. “0” for Suzuki badged vehicles, “6” for Geo’s (“U” indicates an 8-valve 1.6L). 1.3. The most common set-up, and arguably the simplest, mates a donor Tracker or Sidekick engine, with the Samurai 5- spd Manual Transmission. Donor engines with Automatic Transmissions (3 or 4 A/T) are easily rewired to work with the Samurai 5-spd M/T. Specific notations for installing the donor engine with a 3 A/T appear where necessary. The 4 A/T is significantly more complicated and is not included in these instructions. 1.4. It is preferred (but not required) that the ECM and engine be of the same model year. However, as long as the computer has all the necessary inputs and outputs it makes no difference what motor it is physically controlling. It should be noted that OBD1 vehicles (1995 & earlier) are much less complex than OBD2 vehicles (1996 & after). The earlier technology is far easier for the amateur auto electrician to manage. OBD2, being more modern, has nearly twice as many sensors & controls. Properly tuned, OBD2 engines will provide slightly more power, better fuel economy, and cleaner emissions. Replacement parts are also easier to find, but of course, are more expensive.

1995 Nissan 200SX Engine – Timing Chain/Front Cover Revised Procedure

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Filed Under (Nissan) by admin on 05-01-2011

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SERVICE INFORMATION A revised service procedure for the engine front cover/timing chain has been adopted for the GA16DE. It is no longer recommended to remove the cylinder head when removing the timing chain/front cover(s). Utilize the following steps when servicing the front cover, timing chain, guides or tensioner(s) PARTS INFORMATION Caution ^ After removing the timing chain, do not turn the crankshaft and camshaft separately or the valves will strike the piston heads. ^ When installing chain tensioners or other sliding parts, lubricate contacting surfaces with new engine oil. ^ Apply new engine oil to bolt threads and seat surfaces when installing the camshaft sprockets and the crankshaft pulley. ^ Do not spill engine coolant on the drive belts. ^ Please refer to the Service Manual for the correct tightening torque. Removal 1. Set # 1 piston at TDC on its compression stroke. 2. Remove the spark plug wires. 3. 4. Remove the rocker cover (see Figure 1). Remove the coolant reservoir tank with bracket and reposition it for clearance. 5. Support the engine with a suitable jack. 6. Remove cylinder head front mounting bracket. 7. Remove engine front mounting, then the engine front mounting bracket. 8. Remove cylinder head front cover. 9. Remove the upper chain tensioner (see Figure 2). 10. Wipe off the links of the upper timing chain next to the timing marks on the sprockets. Put paint marks on the timing chain, matching them with the timing marks on the cam sprockets and idler sprocket (see Figure 3) 11. Remove the four (4) front cover to cylinder head bolts. 12. Remove side and lower engine compartment splash covers. 13. Remove the accessory drive belts. 14. Remove the crankshaft pulley. 15. Drain coolant by removing the cylinder block drain plug and opening the radiator drain cock (Refer to MA section of the Service Manual). 16. Drain engine oil. 17. Remove intake manifold support of engine front side. 18. Remove power steering pump, pump bracket and tension rod. Position pump aside for clearance.

2003 – 2005 Nissan Altima MIL ON WITH P0340 / P0345 (CMP SENSOR) AND/OR ENGINE IS HARD TO START WHEN WARM

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Filed Under (Nissan) by admin on 05-01-2011

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IF YOU CONFIRM: A MIL ON with DTC P0340 (CMP Sensor Bank 1) and/or P0345 (CMP Sensor Bank 2), and/or The engine is hard to start when warm, but starts OK when the engine is cold. NOTE: “Hard start” is engine crank time that is longer then 3 seconds. 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.

2000-2001 Nissan Maxima Engine rough running Engine surging Low engine power

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Filed Under (Nissan) by admin on 21-12-2010

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SERVICE INFORMATION If an applied vehicle has DTC P0100 stored and possibly exhibits, • • • Engine rough running Engine surging Low engine power the cause may be an airflow sensor that has been damaged by air-ingested dust/dirt. To resolve this incident, if it should occur, follow the steps outlined in the Service Procedure on page 2. Service Procedure Summary: • Remove dust/dirt/debris from inside the air cleaner housing. This will help prevent another incident. • A new genuine Nissan air filter element must be used for all warranty claims, and any other claim for which Nissan pays. A new genuine Nissan air filter element is designed to be compatible with the Nissan air flow meter and has proven to provide adequate dust protection to help prevent these incidents. It is strongly recommended that incident customers continue using Nissan genuine air filters for assured protection when replacing according to the routine maintenance schedule. See parts information for the air filter part number (P/N). • Install a new complete airflow meter assembly. See Parts Information for the part number (P/N). • Reprogram the ECM with special new data that is matched to the different output characteristics of the new airflow meter.