Exhaust guide for Nissan Altima 2002-2004 3.5SE vehicle. Contain information about : Introduction Header Install Product Selection Removing Intake / Intake Manifold Removing Stock Downpipe Removing Manifolds Extending O2 Sensors Installing Aftermarket Exhaust Manifolds Common Issues / Troubleshooting CEL (Engine Code) Errors Conclusion. Preparation to remove Intake manifold, tools requirement : 1) ½” Socket Wrench 2) Metric Deep Sockets (10mm/12mm/14mm especially) 3) 12mm / 10mm Offset Wrench (Craftsman) 4) ½” Torque Wrench or Breaker Bar (Used to get leverage and torque to remove stock manifolds and precats) 5) 12″ ½” Socket extension and 3″ 1/2″ Socket Extension. Disconnect the negative cable to the battery and remove the plastic engine cover (4 screws). Remove the 12mm and 10mm bolt on top of your intake manifold and move the VIAS solenoid and EVAP canister to the side (DO NOT DISCONNECT TUBES). After removing the two devices, put both screws back into intake manifold so you will not loose them. This will give you access to the main bolts below. Don’t mess around skimming over the little details as they WILL be the ones to bite you in the ass in the days to come troubleshooting any issues with your header installation. Common Issue and troubleshooting guide : CEL (Check Engine Light) Codes and Resolutions. The extensions for the O2 sensors were not done correctly. Re-check your wiring to ensure the connections and continuity is there. If the wiring is correct, assume bad O2 sensor.
Tags : nissan altima 2002, 2004 nissan altima, nissan altima, o2 sensors, header installation, torque wrench, negative cable, socket wrench, intake manifold, exhaust manifolds, o2 sensor, altima, solenoid, exhaust system, product selection
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