s14 sr bogging - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

minitruck88 · 10-21-2013, 10:38 PM

having trouble starting my sr in the morning, and while driving car struggles to get past 3500 rpms, it feels like it boggs or hesitates can anyone give me any pointers?

RedtopTech · 10-22-2013, 06:38 PM

Check the voltage output from the MAFS at idle. Should be 1.2V At idle and about 2 volts at 3k RPM

codyace · 10-23-2013, 05:07 PM

MAF, CAS, CTS, or a boost leak/vacuum leak.

Does it free rev past 3500 if you are in nuetral? If so look for a vacuum leak.
If it doesn't, troubleshoot the above sensors, as it sounds like your car is in limp mode.

10-21-2013, 10:38 PM	#1
minitruck88 Join Date: Dec 2011 Location: La Puente Age: 35 Posts: 23 Trader Rating: (0) Feedback Score: 0 reviews	s14 sr bogging having trouble starting my sr in the morning, and while driving car struggles to get past 3500 rpms, it feels like it boggs or hesitates can anyone give me any pointers?

10-23-2013, 05:07 PM	#3
codyace Post Whore! Join Date: Dec 2004 Location: Poconos, PA Age: 39 Posts: 8,030 Trader Rating: (58) Feedback Score: 58 reviews	MAF, CAS, CTS, or a boost leak/vacuum leak. Does it free rev past 3500 if you are in nuetral? If so look for a vacuum leak. If it doesn't, troubleshoot the above sensors, as it sounds like your car is in limp mode. __________________ *Want Air Conditioning in your SR20 Swapped car? Check out www.sr20acbrackets.com for more information! Quest Alternator Conversions for SR20!* Check my Group Buy! Tired of lousy internal gates? Go external wastegate with one of my manifolds, Check out my group buy

10-22-2013, 06:38 PM	#2
RedtopTech Zilvia Member Join Date: Dec 2005 Location: Virginia Beach, VA Age: 39 Posts: 293 Trader Rating: (0) Feedback Score: 0 reviews	Check the voltage output from the MAFS at idle. Should be 1.2V At idle and about 2 volts at 3k RPM