s14 auto wont shift until higher rpm. throwing 2 codes. sensor? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

LJBS13 · 06-13-2012, 10:37 PM

vehicle: 1996 240sx all stock automatic. SE
so car was fine up until i replaced my leaky front "main" seal -crank seal. so simple job got the seal out replaced it. after i pressure washed the dirty greasy motor i covered the distributer, battery, and maf sensor and sprayed the motor and trans. got under the car also. after its all done i start it up and its fine everything looks and sounds good. next day i start it up and the CEL comes on i go to drive it and the rpm's go higher and higher and wont shift. i punch it they raise to 5500rpm then shifts hard i keep going and it shifts once more and wont go past that gear. i stop and go again and does the same thing if i try and cruise the rpms will just keep rising until almost redline then shift.
the codes are p0325 and p1705
these are knock sensor and throttle position sensor.
i just passed smog 1 week prior and the car was perfect before all this. so my question is would either of these cause the transmission issues im having or anyone know what i can try or check to fix this? any input is appreciated!

sr20det-s14 · 04-12-2013, 02:35 PM

don't know if you fixed it but it's the tps sensor mine just did it and I replaced it and works fine now

patternrules · 08-23-2014, 06:37 PM

I just done the same thing with mine degreased engine high pressure car wash and started shifting hard and high rpm same codes let dry a couple of days and working fine now. I'll see how it does in the rain.

06-13-2012, 10:37 PM	#1
LJBS13 Zilvia Junkie Join Date: Dec 2007 Location: Socal Posts: 507 Trader Rating: (22) Feedback Score: 22 reviews	s14 auto wont shift until higher rpm. throwing 2 codes. sensor? vehicle: 1996 240sx all stock automatic. SE so car was fine up until i replaced my leaky front "main" seal -crank seal. so simple job got the seal out replaced it. after i pressure washed the dirty greasy motor i covered the distributer, battery, and maf sensor and sprayed the motor and trans. got under the car also. after its all done i start it up and its fine everything looks and sounds good. next day i start it up and the CEL comes on i go to drive it and the rpm's go higher and higher and wont shift. i punch it they raise to 5500rpm then shifts hard i keep going and it shifts once more and wont go past that gear. i stop and go again and does the same thing if i try and cruise the rpms will just keep rising until almost redline then shift. the codes are p0325 and p1705 these are knock sensor and throttle position sensor. i just passed smog 1 week prior and the car was perfect before all this. so my question is would either of these cause the transmission issues im having or anyone know what i can try or check to fix this? any input is appreciated! __________________

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04-12-2013, 02:35 PM	#2
sr20det-s14 Leaky Injector Join Date: Dec 2009 Location: jacksonville Age: 31 Posts: 134 Trader Rating: (0) Feedback Score: 0 reviews	don't know if you fixed it but it's the tps sensor mine just did it and I replaced it and works fine now

08-23-2014, 06:37 PM	#3
patternrules Join Date: Apr 2012 Location: Indiana Age: 72 Posts: 1 Trader Rating: (0) Feedback Score: 0 reviews	I just done the same thing with mine degreased engine high pressure car wash and started shifting hard and high rpm same codes let dry a couple of days and working fine now. I'll see how it does in the rain.