300ZX (Z31) Performance / Technical Discussions related to Turbo charging, Supercharging, Engine, ECU, exhaust, and etc. performance enhancements and Techical related.

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Old 02-06-2006, 01:15 PM
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Finally

So id like to say my problem is solved. My jerky Acceleration. The Throttle positioning switch is bad, i just disconected it. What role does that Play on a n/a 5 speed? I heard it was just for Auto trannys?
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Old 02-06-2006, 02:08 PM
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TPS (THROTTLE POSITION SENSOR) sends a signal to the ECU... doesn't matter what trans you have.
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Old 02-06-2006, 02:19 PM
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Originally Posted by NismoPick
TPS (THROTTLE POSITION SENSOR) sends a signal to the ECU... doesn't matter what trans you have.
Would it hurt to have it disconnected?
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Old 02-06-2006, 03:34 PM
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Why not just adjust it properly?

http://www.carfiche.com

BTW: It's a SWITCH on the 5 speeds.
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Old 02-06-2006, 04:01 PM
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i just had to disconnect this wire from it is all. It was this little black box on the side of the Throttle body held on by 2 screws. It seems that that male connectors are corroding

Last edited by 91Zman; 02-06-2006 at 04:04 PM.
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Old 02-06-2006, 04:58 PM
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Originally Posted by AZ-ZBum

BTW: It's a SWITCH on the 5 speeds.
Well I'll be damned!
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Old 02-07-2006, 10:40 AM
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a switch.. plz explain, mine is the black box also. I am having serious issues with it, horrible idle, but runs great, when I give it gas and move.
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Old 02-07-2006, 12:15 PM
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My idle is fine, it just accelerates really poor and its jerky/sputtering, but ive noticed that most of the time its just in the morning.
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Old 02-07-2006, 06:38 PM
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if you read the instructions for how to adjust it in the fsm, it might give you a clue.
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Old 02-08-2006, 11:06 AM
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fsm? I adjusted the tp sensor, was pretty easy. it was just finding the ohm meter.

Last edited by WolfMan; 02-08-2006 at 11:08 AM.
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Old 02-08-2006, 12:23 PM
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fsm=factory service manual. i highly reccommend you get one.
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Old 02-08-2006, 09:26 PM
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I have the hanes, is that good enough? The car runs really rough, until I pull the wire off of the TP switch. I tried adjusting it as per Hanes. But with no success, I switch the sensor itself, still got issues. How would I go about cleaning the throttle body? Becasue I kno that once you disconect the sensor, the ecu runs a program for fuel vs what the engine is telling it.

I am sorry for biggy backing, but this might help you too if it gets answered.

Last edited by WolfMan; 02-13-2006 at 12:26 PM.
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