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its one seven pin and one six pin plug. they are supposed to run under and across the dash from the ecu inside the car. those wires carry signals to the boost gauge from the map sensor, one is for supercharger light, tach signal, one is the switching ground for the solenoid over by the ufo, one...

The workshop manual shows there is a 12+ coming from the ignition relay to the thermoswitch. The other wire from the thermoswitch then goes to the fan motor. The other wire from the motor goes to ground. Fine. Then i should expect to see only two wires going to the radiator assembly, 12+ and...

will investigate it some more and get back to you buddy.

I am sure you are correct baz. to tell the truth i really couldn't remember which side i check from as i was not next to the harness with the diagram, but there is only one way to check it and have the grounds in the correct position on each connector. i'll take a pic of the #34. gonna send you...

ok. no probs bro.

ok. no probs bro.

frank you got me questioning again bro. here we don't have MOT like you guys so i won't worry about the cat. in fact we take them out to improve flow. got any air fuel ratios before and during acceleration enrichment? also, would you think that if my speedo got the buzzer i would also find a...

word frank. that was the last connection i was wondering about. respect

thanks frank and welcome bro. so its the k11.... my bad. If i don't connect the speed sensor do you think the car should run ok?

checking from the front of the connector baz - ecu side. i must admit i did not check to see if the ecu has a corresponding pin to go into the 34 pin position, but there is definitely a wire going into the connector on both my harnesses. somewhere here on the forum it was either frank or ed...

okay baz. thanks for that. those wires run through the firewall, all the way around the engine bay, back to a 6 socket plug on the engine harness on the right side of firewall. i will not be using them. i found this below the passenger seat in the car? this is the ecu for the engine i am...

baz, i traced a few wires from the ecu to some jacks in this region of the st harness: this is the jack for the solenoid over by the ufo: i believe this one goes to the dials? sent u a pm about it. i got one wire going to it but i don't know what this jack is for?: i guess this is...

baz, logically i know that any electrician would have to figure the wires out before getting it to run right, that i could take the time to do it and that it would be best if i did it myself. basically all jacks to the engine, coil, transistor and ecu are plugged in. i have no connection to...

1. was hoping to find this out to know how to get the vacuum tank solenoid going. 2. will take some pics to identify the plugs i can't seem to figure out. 3. i only got 3 relays on the harness. 4. Ed said in some other thread that all nissan ecus have speed sensor input. i don't recall it being...

Been investigating and studying and i have some questions regarding the ecu-harness-control system: Does ecu switch to +12V to control components, or are the components live and ecu switches to ground? The scan port for the ecu is in the engine bay? The 6 socket female plug with 3 red wires...

when i find out i will post some info. would be nice to give something back. of interest so far i bought some fiitings and plumbed them so that i could run an aftermarket oil pressure gauge together with the oil pressure sensor. i could only find one configuration to fit it up and still be able...

i was hoping so baz cause i couldn't find the connection on the engine harness. i'll try to determine the wires to the ecu and run it direct. where do i power up the ecu with ignition 12V positive and where do i ground it?

do the wires to the solenoid over by the ufo join the same harness / loom as the one for the wiper motor wires, brake fluid reservoir wires and goes through the firewall below the brake booster?

An aftermarket boost gauge will be connected to the port where the map sensor vac line goes so ill be able to monitor the boost pressure. Just needed to make sure that removal of the original map sensor does not affect operation of the ecu in any way. Anyone on the wiring 2 posts up^^?

so the stock boost gauge is electrical and the map sensor is what sends the signal to it? If i unplug the map sensor from the harness the engine would still work properly? the solenoid over by the ufo: could you or anyone else check and see if the wires to the solenoid join the same harness /...