Yellow "Key" light after engine swap

imjello · 01-27-2015, 09:10 AM

Quote:

Originally Posted by TopgunZ

Lol. Its all good man. I'm just glad your helping.

So my obd is definitely not working. Tried connecting osiris and it wont connect, stating no ecu detected.

Ill look closer at the ecu tomorrow and look at grounds.

Haha, my message looks out of place with the thread merge. Good luck with your car, maybe post s vid when it's broken in.

TopgunZ · 01-27-2015, 10:11 AM

How can I disable NATS if I cant connect with the OBD port?

SouthArk370Z · 01-27-2015, 10:37 AM

You can tap into CAN a lot of places but you may have to splice some wires. If you are using the same BCM and ECM, NATS shouldn't be the problem. My money is on the wiring/connectors. YMMV

TopgunZ · 01-27-2015, 02:07 PM

Does the ecu need a ground wire directly off of it or is it ran into the fuse box?

Nut_N_Much · 01-27-2015, 03:34 PM

Comes out fuse box and goes to neg battery.

Was going to see how it was going. I agree with SouthArk.

TopgunZ · 01-28-2015, 09:32 AM

Does anybody have a schematic of the ECU power? I seen it was grounded properly under the carpeting. I looked at all my fuses and none are blown.

I checked the IPDM box, the main fuse box by the that and the fuse box under the steering wheel.

However, I never did find an "ecu" or "ecm" fuse.

Does anyone know where this is located?

Or if they call it by a different name?

SouthArk370Z · 01-28-2015, 09:38 AM

Quote:

Originally Posted by TopgunZ

Does anybody have a schematic of the ECU power? I seen it was grounded properly under the carpeting. I looked at all my fuses and none are blown.

I checked the IPDM box, the main fuse box by the that and the fuse box under the steering wheel.

However, I never did find an "ecu" or "ecm" fuse.

Does anyone know where this is located?

Or if they call it by a different name?

The FSM has wiring diagrams, pinouts, physical locations, and more.

Nut_N_Much · 01-28-2015, 08:06 PM

Whats the word? Got it running boss!

TopgunZ · 01-29-2015, 11:04 AM

Quote:

Originally Posted by Nut_N_Much

Whats the word? Got it running boss!

MAN I WISH!! I have checked every fuse, found the grounds and power and have researched pages and pages of the FSM. I have a buddy who is a Honda tech that is coming over on Saturday to take a look. If that all fails then its off to Nissan dealer. Who can then make sure my key fob is programmed to the ecu still. If that fails my next step is a new ECU.

This is killing me....

SouthArk370Z · 01-29-2015, 11:59 AM

If you have some spare time before your buddy gets there, I'd unplug all the connectors on the ECM and BCM, check the pins for damage, and plug back in. You may have trapped some dirt on a pin or bent one.

Edit: If that doesn't work, I'd next do the same with the key/immobilizer circuit.

Nut_N_Much · 01-29-2015, 05:39 PM

You have been very patient. I think I would have lost my mind. My car is a daily driver, I always plan these projects for the weekend so my wife can got to work on Monday. When something goes wrong it suck. Thats when we feel like the image below.

Truly wish you luck!

TopgunZ · 01-30-2015, 11:39 AM

Hahaha!!...I showed guys at work this.

TopgunZ · 01-31-2015, 09:32 PM

Finally!!! It was the connector from the engine bay by the firewall under the boot. I didn't even know they split there. It wasn't snapped together all the way. Car started up perfectly. First time ive driven it in 7 months. Built motor. Ready for some serious boost soon!

01-27-2015, 10:11 AM	#17 (permalink)
TopgunZ A True Z Fanatic Join Date: Jun 2012 Location: Minneapolis Posts: 2,651 Drives: 06 350Z , 09 370Z MT Rep Power: 6834	How can I disable NATS if I cant connect with the OBD port? __________________ ROTREX SUPERCHARGER TUNER KITS - $6799/ CUSTOM STILLEN AIR TO AIR KITS -$2100/ 700+ WHP!! WWW.TOPGUNSPEEDWORKS.COM

01-27-2015, 10:37 AM	#18 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324198	You can tap into CAN a lot of places but you may have to splice some wires. If you are using the same BCM and ECM, NATS shouldn't be the problem. My money is on the wiring/connectors. YMMV Nut_N_Much likes this. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

01-27-2015, 02:07 PM	#19 (permalink)
TopgunZ A True Z Fanatic Join Date: Jun 2012 Location: Minneapolis Posts: 2,651 Drives: 06 350Z , 09 370Z MT Rep Power: 6834	Does the ecu need a ground wire directly off of it or is it ran into the fuse box? __________________ ROTREX SUPERCHARGER TUNER KITS - $6799/ CUSTOM STILLEN AIR TO AIR KITS -$2100/ 700+ WHP!! WWW.TOPGUNSPEEDWORKS.COM

01-27-2015, 03:34 PM	#20 (permalink)
Nut_N_Much A True Z Fanatic Join Date: Dec 2011 Location: Pensacola Florida Posts: 1,696 Drives: Awesome Car Rep Power: 27	Comes out fuse box and goes to neg battery. Was going to see how it was going. I agree with SouthArk. __________________ Did new cool science stuff to the car !!! http://www.the370z.com/mazoc/99606-z...y-14-17-a.html http://www.the370z.com/diy-section-d...-w-videos.html

01-28-2015, 09:32 AM	#21 (permalink)
TopgunZ A True Z Fanatic Join Date: Jun 2012 Location: Minneapolis Posts: 2,651 Drives: 06 350Z , 09 370Z MT Rep Power: 6834	Does anybody have a schematic of the ECU power? I seen it was grounded properly under the carpeting. I looked at all my fuses and none are blown. I checked the IPDM box, the main fuse box by the that and the fuse box under the steering wheel. However, I never did find an "ecu" or "ecm" fuse. Does anyone know where this is located? Or if they call it by a different name? __________________ ROTREX SUPERCHARGER TUNER KITS - $6799/ CUSTOM STILLEN AIR TO AIR KITS -$2100/ 700+ WHP!! WWW.TOPGUNSPEEDWORKS.COM

01-28-2015, 08:06 PM	#23 (permalink)
Nut_N_Much A True Z Fanatic Join Date: Dec 2011 Location: Pensacola Florida Posts: 1,696 Drives: Awesome Car Rep Power: 27	Whats the word? Got it running boss! __________________ Did new cool science stuff to the car !!! http://www.the370z.com/mazoc/99606-z...y-14-17-a.html http://www.the370z.com/diy-section-d...-w-videos.html

01-29-2015, 11:59 AM	#25 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324198	If you have some spare time before your buddy gets there, I'd unplug all the connectors on the ECM and BCM, check the pins for damage, and plug back in. You may have trapped some dirt on a pin or bent one. Edit: If that doesn't work, I'd next do the same with the key/immobilizer circuit. Nut_N_Much likes this. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

01-30-2015, 11:39 AM	#27 (permalink)
TopgunZ A True Z Fanatic Join Date: Jun 2012 Location: Minneapolis Posts: 2,651 Drives: 06 350Z , 09 370Z MT Rep Power: 6834	Hahaha!!...I showed guys at work this. __________________ ROTREX SUPERCHARGER TUNER KITS - $6799/ CUSTOM STILLEN AIR TO AIR KITS -$2100/ 700+ WHP!! WWW.TOPGUNSPEEDWORKS.COM

01-31-2015, 09:32 PM	#28 (permalink)
TopgunZ A True Z Fanatic Join Date: Jun 2012 Location: Minneapolis Posts: 2,651 Drives: 06 350Z , 09 370Z MT Rep Power: 6834	Finally!!! It was the connector from the engine bay by the firewall under the boot. I didn't even know they split there. It wasn't snapped together all the way. Car started up perfectly. First time ive driven it in 7 months. Built motor. Ready for some serious boost soon! SouthArk370Z, jwick, Rusty and 2 others like this. __________________ ROTREX SUPERCHARGER TUNER KITS - $6799/ CUSTOM STILLEN AIR TO AIR KITS -$2100/ 700+ WHP!! WWW.TOPGUNSPEEDWORKS.COM

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