M13KYF Posted October 24, 2007 Share Posted October 24, 2007 Posted by Tere Replacing the throttle body is a piece of cake -- remove the intake tube at the throttle body; remove the 4 allen bolts; remove the connector to the TPS/ETC, replace with new (don't forget to plug in the connector in your haste to get back in business), and you're done. Do Accelerator Pedal Released Learning voodoo, followed by Throttle Valve Closed Learning voodoo, and finally Idle Air Volume Learning voodoo after replacing a throttle body. I can give you all the Nissan voodoo doodoo and five hail Marys if you need them. Oh heck, here's the Engine Control System -- it's got all the engine codes and diagnostics -- the above voodoo starts on page EC-50. Right click on the link and Save Target As to download and save on your computer -> http://tere.net/t-z/ec.pdf Brand new throttle bodies cost about $650 US, BUT Nissan makes factory rebuilt ones for $120 plus $40 core charge (refundable). It appears the TPS/ETC failures are common enough that Nissan is remanufacturing throttle bodies -- one of the very first Nissan rebuilt parts for the 350 they've offered. The engine code indicating TPS failure is 2135. With total TPS failure, your Z will be in unclearable fail-safe mode. You can decipher it with Nissan voodoo, or take it to any garage with electronic diagnostics (OBDII connection to ECM). Or find a friend who has a diagnostic program on their computer -- I use AutoTap to read engine operating parameters and codes (also clear codes). If any daring soul wants to experience TPS failure, just unplug the TPS/ETC connector on the throttle body. _________________ Link to comment Share on other sites More sharing options...
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