95 240sx 5 spd. TPS sensor plug missing? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

aic96max · 10-10-2013, 01:19 AM

Hello Guys,

I recently purchased my first s14. Im a long time nissan maxima owner but wanted some rwd love,.

Anyways I got this 95 240s which is an original 5 sp car. The previous owner swaped the engine due to HG failure. Im not sure if he used an auto or 5 spd donor engine. Anyways, the car idles a little low with the ac off. like 550 and i started looking at the tps . the 3 wire plu is missing on the tps, but it does have a second harness that comes out of the tps itself that that is plugged into the engine harness.

Now the car runs, revs, drives fine, just idles a bit too low(rough) without the ac on. I looked and i dont see the plug on the harness at all. I did pick one up at the yard incase i need to wire it to the ecu.

im not familiar w these cars so i want to know if the other plug which is missing is only used for automatic cars? i will post pics tomorrow.

thanks for the help

aic96max · 10-10-2013, 01:25 AM

currently there is a connection on the pigtail, but the plug on the actual sensor is not connected to clarify

AS240 · 10-10-2013, 08:54 AM

IIRC, the extra plug on TPS is for the kick-down switch on an auto. Not needed for a MT car. If the car has always idled low with this new motor, the IACV most likely needs to be adjusted slightly. Be ready to readjust your ignition timing when you do this as it will probably change with the idle increase.

aic96max · 10-12-2013, 01:04 AM

Quote:

Originally Posted by AS240

IIRC, the extra plug on TPS is for the kick-down switch on an auto. Not needed for a MT car. If the car has always idled low with this new motor, the IACV most likely needs to be adjusted slightly. Be ready to readjust your ignition timing when you do this as it will probably change with the idle increase.

is there a write up for this process somewhere?

AS240 · 10-15-2013, 07:44 PM

1991-1994 240sx: Setting adjusting idle tutorial : Nissan Online Mechanic

codyace · 10-24-2013, 06:34 AM

Quote:

Originally Posted by aic96max

is there a write up for this process somewhere?

Along wish AS240's post, don't forget the PLMS Developments Homepage page

10-10-2013, 01:19 AM	#1
aic96max Leaky Injector Join Date: Jul 2013 Location: miami Age: 41 Posts: 69 Trader Rating: (0) Feedback Score: 0 reviews	95 240sx 5 spd. TPS sensor plug missing? Hello Guys, I recently purchased my first s14. Im a long time nissan maxima owner but wanted some rwd love,. Anyways I got this 95 240s which is an original 5 sp car. The previous owner swaped the engine due to HG failure. Im not sure if he used an auto or 5 spd donor engine. Anyways, the car idles a little low with the ac off. like 550 and i started looking at the tps . the 3 wire plu is missing on the tps, but it does have a second harness that comes out of the tps itself that that is plugged into the engine harness. Now the car runs, revs, drives fine, just idles a bit too low(rough) without the ac on. I looked and i dont see the plug on the harness at all. I did pick one up at the yard incase i need to wire it to the ecu. im not familiar w these cars so i want to know if the other plug which is missing is only used for automatic cars? i will post pics tomorrow. thanks for the help

10-10-2013, 08:54 AM	#3
AS240 Zilvia Addict Join Date: Jul 2007 Location: Austin, Tx Age: 34 Posts: 683 Trader Rating: (18) Feedback Score: 18 reviews	IIRC, the extra plug on TPS is for the kick-down switch on an auto. Not needed for a MT car. If the car has always idled low with this new motor, the IACV most likely needs to be adjusted slightly. Be ready to readjust your ignition timing when you do this as it will probably change with the idle increase. __________________ '92 HB HX35 rb25 - sold '89 Coupe GTX35 VVT-I 2JZ - yeah buddy

10-15-2013, 07:44 PM	#5
AS240 Zilvia Addict Join Date: Jul 2007 Location: Austin, Tx Age: 34 Posts: 683 Trader Rating: (18) Feedback Score: 18 reviews	1991-1994 240sx: Setting adjusting idle tutorial : Nissan Online Mechanic __________________ '92 HB HX35 rb25 - sold '89 Coupe GTX35 VVT-I 2JZ - yeah buddy

10-10-2013, 01:25 AM	#2
aic96max Leaky Injector Join Date: Jul 2013 Location: miami Age: 41 Posts: 69 Trader Rating: (0) Feedback Score: 0 reviews	currently there is a connection on the pigtail, but the plug on the actual sensor is not connected to clarify