Harness ans sensor Question.. 5 speed and auto - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Tantwoforty · 07-29-2009, 10:56 PM

I have done some searching and cant seem to kind the right answer to my problem so ill give it a shot here...

i ripped my upper engine wiring harness in half and blew my ecu on my 92 se hatch, So i got another #30 ecu and another harness.. the harness i got was a little different then the one i had, it had a extra plug near the ecu about 1 1/2 inches long with foam around it. and another extra plug near the TPS/ coolant sensor its a 3 pin black plug. and the tps sensor was alot different..

So me being ancy i decided to swap the tps plug for my original one and hook it all up and see what happens, so i do that and the car starts but idles around 1000. i turned the car off and back on and i had a cel. i then drove the car and it was loud as balls and had no pull at all... so i read the ecu and got 43, 12, 34.

so the ecu isint seeing my tps, maf or knock sensor.

So my questions are
1. What harness did i get
2. Is it because of the harness that im not getting a reading from these sensors
3.is it the sensors them self's
4. Could i rewire the harness a little to get it to work

what i mean is would the harness forsure do this? before i start buying new sensors...
i can post pics if necessary thanks for any help

Tantwoforty · 07-30-2009, 07:51 PM

bumpy bump

projectRDM · 07-30-2009, 11:22 PM

You got an automatic harness, the extra plug by the ECU goes to the ATC, the extra TPS plug is for the automatic to read. There was no need to change or rewire the TPS. Put it back to original.

Tantwoforty · 07-31-2009, 04:49 PM

Quote:

Originally Posted by projectRDM

Put it back to original.

the original plug on the auto harness was male and a red color and would not plug into my stock tps plug.

07-29-2009, 10:56 PM	#1
Tantwoforty Nissanaholic! Join Date: May 2009 Location: Riverside ca Age: 35 Posts: 1,890 Trader Rating: (20) Feedback Score: 20 reviews	Harness and sensor Question.. 5 speed and auto I have done some searching and cant seem to kind the right answer to my problem so ill give it a shot here... i ripped my upper engine wiring harness in half and blew my ecu on my 92 se hatch, So i got another #30 ecu and another harness.. the harness i got was a little different then the one i had, it had a extra plug near the ecu about 1 1/2 inches long with foam around it. and another extra plug near the TPS/ coolant sensor its a 3 pin black plug. and the tps sensor was alot different.. So me being ancy i decided to swap the tps plug for my original one and hook it all up and see what happens, so i do that and the car starts but idles around 1000. i turned the car off and back on and i had a cel. i then drove the car and it was loud as balls and had no pull at all... so i read the ecu and got 43, 12, 34. so the ecu isint seeing my tps, maf or knock sensor. So my questions are 1. What harness did i get 2. Is it because of the harness that im not getting a reading from these sensors 3.is it the sensors them self's 4. Could i rewire the harness a little to get it to work what i mean is would the harness forsure do this? before i start buying new sensors... i can post pics if necessary thanks for any help Last edited by Tantwoforty; 07-30-2009 at 12:13 AM..

07-30-2009, 07:51 PM	#2
Tantwoforty Nissanaholic! Join Date: May 2009 Location: Riverside ca Age: 35 Posts: 1,890 Trader Rating: (20) Feedback Score: 20 reviews	bumpy bump

07-30-2009, 11:22 PM	#3
projectRDM Post Whore! Join Date: Dec 2002 Location: Atlanta Age: 51 Posts: 13,812 Trader Rating: (12) Feedback Score: 12 reviews	You got an automatic harness, the extra plug by the ECU goes to the ATC, the extra TPS plug is for the automatic to read. There was no need to change or rewire the TPS. Put it back to original. __________________ FORMERLY R240NA Learn what's really going on and protect your assets now before they're gone forever: www.paypalsucks.com