Noob here - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

fakieSI · 11-09-2009, 11:11 PM

Like the title says noob here. Using the search but not getting the answers I need. I a new to the whole nissan game and I really need some help. I have a 1997 240sx that looks to be a auto to manual conversion. The harness looks to have been modified to allow the car to drive but there is a check engine light. I am wanting to eliminate that. I know that I need a new wiring harness for a manual and a new engine computer. But what I dont know is what years are interchangeable. I am to used to hondas where all parts fit all cars lol. Any other help, feed back, or the parts I need for sale please lmk. Thanks

onepuff · 11-09-2009, 11:47 PM

Search on how to pull the ECU codes. Download an FSM for your car. Most people here aren't going to spoonfeed you. Kind of hard to diagnose the problem without knowing what trouble code is causing the CEL.

DreamN · 11-09-2009, 11:53 PM

^ if he has an auto to manual conversion with an auto ecu still in place it's obvious what codes he's throwing.

I recommend searching auto to manual conversion threads for the S14 to let you know what wiring is involved. Don't quote me on this, but I believe any manual ECU from a 96-98 would be okay.

fakieSI · 11-10-2009, 12:02 AM

Quote:

Originally Posted by DreamN

^ if he has an auto to manual conversion with an auto ecu still in place it's obvious what codes he's throwing.

I recommend searching auto to manual conversion threads for the S14 to let you know what wiring is involved. Don't quote me on this, but I believe any manual ECU from a 96-98 would be okay.

Thanks I'll give that a try... I have been searching s14 wiring and havnt come up with anything...

DreamN · 11-10-2009, 12:08 AM

s14 wiring is to vague. search for 5 speed conversion. don't limit yourself to zilvia either. there are other forums and searching google usually helps as well.

projectRDM · 11-10-2009, 08:16 AM

You do NOT need a manual lower harness. People always assume that and it's damn stupid. The chassis isn't prewired for the manual wiring, so plugging in the manual harness gains nothing.

You need to hardwire the neutral and 5th position switches, just as any decent swap guide will tell you to. The CEL is triggered by not reading either of those.

fakieSI · 11-10-2009, 09:19 AM

Quote:

Originally Posted by projectRDM

You do NOT need a manual lower harness. People always assume that and it's damn stupid. The chassis isn't prewired for the manual wiring, so plugging in the manual harness gains nothing.

You need to hardwire the neutral and 5th position switches, just as any decent swap guide will tell you to. The CEL is triggered by not reading either of those.

ok I think that has been done. I pulled the codes today. Keep in mind I know the guy did one of those stupid egr deletes so I know thats what half of these are for. I am currently hunting down everything I need to fix that.

p0400 egr flow
p0440 evap emission control malf.
p1615 manufactor specific
p0141 02 sensor bank 1 sensor 2
p0446 evap emissions control circuit malf.
p0705 trans range malf.

I did find a great write up on Nico but their check engine lights on their obd2 car and nothing what I have.

Auto to Manual Writeup (5 speed conversion): 240SX Technical Forum: Nissan Forums / Infiniti Forums - NICOclub

Any further help or knowledge would greatly be appreciated...

onepuff · 11-10-2009, 04:41 PM

All those codes are obviously because you are running the auto ecu.

fakieSI · 11-10-2009, 08:13 PM

ok so a manual ecu and the egr back I should be golden?

projectRDM · 11-10-2009, 10:25 PM

Quote:

Originally Posted by onepuff

All those codes are obviously because you are running the auto ecu.

How do you figure?

Only one of those is automatic related.

onepuff · 11-10-2009, 11:30 PM

Quote:

Originally Posted by DreamN

^ if he has an auto to manual conversion with an auto ecu still in place it's obvious what codes he's throwing.

I recommend searching auto to manual conversion threads for the S14 to let you know what wiring is involved. Don't quote me on this, but I believe any manual ECU from a 96-98 would be okay.

I was being sarcastic. That's why I told him to pull codes in the first place. He just got the car and it's throwing codes.

fakieSI · 11-11-2009, 01:15 AM

well some one local says they have both all the egr stuff and the ecu so hopefully I can get it to pass emissions... thanks for the help.

11-09-2009, 11:11 PM	#1
fakieSI Leaky Injector Join Date: Apr 2008 Location: Nashville Age: 33 Posts: 58 Trader Rating: (0) Feedback Score: 0 reviews	Noob here Like the title says noob here. Using the search but not getting the answers I need. I a new to the whole nissan game and I really need some help. I have a 1997 240sx that looks to be a auto to manual conversion. The harness looks to have been modified to allow the car to drive but there is a check engine light. I am wanting to eliminate that. I know that I need a new wiring harness for a manual and a new engine computer. But what I dont know is what years are interchangeable. I am to used to hondas where all parts fit all cars lol. Any other help, feed back, or the parts I need for sale please lmk. Thanks

11-09-2009, 11:53 PM	#3
DreamN Post Whore! Join Date: Nov 2006 Location: SoCal - 818 Age: 36 Posts: 10,691 Trader Rating: (54) Rides Gallery: DreamN Feedback Score: 54 reviews	^ if he has an auto to manual conversion with an auto ecu still in place it's obvious what codes he's throwing. I recommend searching auto to manual conversion threads for the S14 to let you know what wiring is involved. Don't quote me on this, but I believe any manual ECU from a 96-98 would be okay. __________________ - Jimmy Wanted: TBD For Sale: TBD

11-10-2009, 12:08 AM	#5
DreamN Post Whore! Join Date: Nov 2006 Location: SoCal - 818 Age: 36 Posts: 10,691 Trader Rating: (54) Rides Gallery: DreamN Feedback Score: 54 reviews	s14 wiring is to vague. search for 5 speed conversion. don't limit yourself to zilvia either. there are other forums and searching google usually helps as well. __________________ - Jimmy Wanted: TBD For Sale: TBD

11-10-2009, 08:16 AM	#6
projectRDM Post Whore! Join Date: Dec 2002 Location: Atlanta Age: 47 Posts: 13,812 Trader Rating: (12) Feedback Score: 12 reviews	You do NOT need a manual lower harness. People always assume that and it's damn stupid. The chassis isn't prewired for the manual wiring, so plugging in the manual harness gains nothing. You need to hardwire the neutral and 5th position switches, just as any decent swap guide will tell you to. The CEL is triggered by not reading either of those. __________________ FORMERLY R240NA Learn what's really going on and protect your assets now before they're gone forever: www.paypalsucks.com

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11-09-2009, 11:47 PM	#2
onepuff Zilvia Member Join Date: Oct 2006 Location: ohio Age: 42 Posts: 290 Trader Rating: (2) Feedback Score: 2 reviews	Search on how to pull the ECU codes. Download an FSM for your car. Most people here aren't going to spoonfeed you. Kind of hard to diagnose the problem without knowing what trouble code is causing the CEL.

11-10-2009, 04:41 PM	#8
onepuff Zilvia Member Join Date: Oct 2006 Location: ohio Age: 42 Posts: 290 Trader Rating: (2) Feedback Score: 2 reviews	All those codes are obviously because you are running the auto ecu.

11-10-2009, 08:13 PM	#9
fakieSI Leaky Injector Join Date: Apr 2008 Location: Nashville Age: 33 Posts: 58 Trader Rating: (0) Feedback Score: 0 reviews	ok so a manual ecu and the egr back I should be golden?

11-11-2009, 01:15 AM	#12
fakieSI Leaky Injector Join Date: Apr 2008 Location: Nashville Age: 33 Posts: 58 Trader Rating: (0) Feedback Score: 0 reviews	well some one local says they have both all the egr stuff and the ecu so hopefully I can get it to pass emissions... thanks for the help.