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Old 08-28-2013, 09:44 PM   #61
PoorMans180SX
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So, IDK about you guys, but I've been needing some inspiration for completing my VQ swap when I'm surrounded by turbocharged engines all day. So here it is, lead car is a stock VQ35DE

http://www.youtube.com/watch?v=r4nRlwLMPTA
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Old 08-29-2013, 07:18 AM   #62
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hell yeah!
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Old 08-29-2013, 08:53 PM   #63
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Well guys i have finally have my car consistently starting and running. I put in a call to the boys at Z1motorsports. Great bunch of guys there, very knowledgeable. They knew what my problem was and were quick to help. Cant thank them guys enough, especially John.

For you guys who are going through this swap and/or will be in the future i suggest you give those guys a call for any services you need.

I Hope to be posting pictures of my 97 240sx running and driving in the following months.
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Old 08-30-2013, 07:48 AM   #64
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Quote:
Originally Posted by ClaytonTNelson View Post
Well guys i have finally have my car consistently starting and running. I put in a call to the boys at Z1motorsports. Great bunch of guys there, very knowledgeable. They knew what my problem was and were quick to help. Cant thank them guys enough, especially John.

For you guys who are going through this swap and/or will be in the future i suggest you give those guys a call for any services you need.

I Hope to be posting pictures of my 97 240sx running and driving in the following months.
all that and you don't post up what the problem was?
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Old 08-30-2013, 07:56 AM   #65
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It was a ecu tuning that needed to be done. Unfortunately the general public doesn't have access to certain functions such as the removal of the Nissan anti theft system (NATS). This is where a pro tuner is needed. John at Z1 knew exactly what to do and the turn around time was great.
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Old 09-23-2013, 01:15 PM   #66
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so im getting a vq from someone and they have engine only (no tranny, no ecu, no pedal).
i'm planning to rebuild to factory specs so my question is, can i use an ecu from a different vq engine to work with the one i'm purchasing(03, 04)?
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Old 09-23-2013, 01:32 PM   #67
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there are many issues with swapping ecus.

my friend had an issue unlocking the ecu he was trying to swap in. it isnt cheap if i remember correctly

also pretty positive you cannot use the vq35hr ecu with the de engine. They are very different engines. single intake vs twins. an extra 1000 rpms in the tuning. etc etc pretty much a completely different engine.
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Old 09-23-2013, 01:38 PM   #68
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well apparently this engine (vq35de) is either from 03 or 04 model.
and this guy says i can take an ecu from another vq thats either 03 or 04 and it'll work..
thoughts?
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Old 09-23-2013, 01:55 PM   #69
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You will still need to go to a tuner I believe. See above posts above theft system
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Old 09-23-2013, 02:24 PM   #70
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so removing the NATS on any VQ ECU will make it work with this engine(03-04 VQ)?

sorry if this seems like stupid questions. still trying to find stuff out.
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Old 09-23-2013, 02:36 PM   #71
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Yup NATS has to be removed.
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Old 09-23-2013, 02:39 PM   #72
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Quote:
Originally Posted by Nismo1182 View Post
Yup NATS has to be removed.
i get that NATS has to be removed...but does that mean any VQ35DE ECU will work with a different VQ35DE engine pulled from a different vehicle?
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Old 09-24-2013, 12:16 PM   #73
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i get that NATS has to be removed...but does that mean any VQ35DE ECU will work with a different VQ35DE engine pulled from a different vehicle?
If its unlocked correctly, then yes. ECU has to correspond to the correct type of VQ. Like a regular DE wont work on a rev up or HR.
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Old 09-24-2013, 12:50 PM   #74
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Here is some VALUABLE info (non-HR):

ECU's

Automatic:
03-04 "DE" [4 pin o2][AVOID 03 G35 sedan ECU *COUPE ECU ARE OK*]
04.5-05 "DE" [5 pin o2]
2006+ "Revup" [5 pin o2]

Manual:
03-04 "DE" [4 pin o2]
04.5 "DE" [5 pin o2]
2005+ "Revup" [5 pin o2]

Harness'

Automatic:
03-04 "DE" [4 pin o2][AVOID 03 G35 sedan harness *COUPE ECU ARE OK*]
04.5-05 "DE" [5 pin o2]
2006+ "Revup" [5 pin o2]

Manual:
03-04 "DE" [4 pin o2]
04.5 "DE" [5 pin o2]
2005+ "Revup" [5 pin o2]

With this being said you can use Any combo of ECU's and Harness as long as o2 sensors match and they belong to the same group "DE" or "Revup".

Examples:
"DE" ECU Harness/O2 on "DE" Block
"DE" ECU/Harness/O2 on "Revup" Block *4 sensors will remain unplugged, but will work fine*
"Revup" ECU/Harness/O2 will only work on "DE" block if the DTC's are disabled

*03 g35 sedan ECU/Harness are that of a Maxima*

Wiring in to S13/S14 chassis

Most wiring guides out there are misleading. There are many easy ways to get this done. If you need help or have questions, shoot me an email at [email protected]

ECU Codes

Most of these will not be needed as the VQ OE components are not needed.

A brief list of what can be disabled on the ECU and allow the motor to operate normally:

Secondary o2 Sensors
Fuel Tank Temp Sensors
EVAP controls
Speed Sensor
Power Steering Pressure
Traction Control
Fuel Level
Catalytic Converter Check

AND MUCH MUCH MORE!!!


If you need info on ANYTHING regarding this swap in to s13/s14 shoot me an email at [email protected]
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Last edited by DEMo; 09-24-2013 at 01:23 PM..
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Old 09-24-2013, 12:52 PM   #75
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i have a VQ35de with 40k miles for sale if anyone in here is interested, lol
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Old 09-26-2013, 09:16 AM   #76
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Old 09-26-2013, 10:06 AM   #77
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Quote:
Originally Posted by DEMo View Post
ECU Codes

Most of these will not be needed as the VQ OE components are not needed.

A brief list of what can be disabled on the ECU and allow the motor to operate normally:

Secondary o2 Sensors
Fuel Tank Temp Sensors
EVAP controls
Speed Sensor
Power Steering Pressure
Traction Control
Fuel Level
Catalytic Converter Check

AND MUCH MUCH MORE!!!
isn't some of this required to make it carb legal in CA?
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Old 09-28-2013, 02:05 PM   #78
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Let me set this straight

Ecu wise you can concider 4 different types.

A-03/early 04s use narrowband o2 sensors
B-Late 04s and 05s use widebands
C-all 06 and the track 05s are rev ups and use an ecu that controls it
D- 07-08 are all HR motors and uses that ecu

Each of the 4 types of ecu has a harness that must match (modification can allow changing them)

Ok. But there is only 3 motors
1- vq35de non-revup (can use a or b but the harness needs to match the ecu)
2- vq35de revup (uses c)
3- vq35hr (uses D)

So I can use an 03 motor with my 05 ecu and harness. Or even visa versa.


To keep things carb legal you would have to incorporate the evap system which gets pretty elaborate with the fuel tank and canister setup but is very doable. There is a thread on here with someone who pretty much put the entire 350z in an s14



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Old 09-30-2013, 09:45 PM   #79
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Hey guys, I'm in need of help, I need to figure out where the 6 wires on the throttle body need to end up at the ecu,what pin numbers? I've been through it but I've got to be missing something. Having issues with only a couple codes, mainly the low voltage correlation.

I've gone through the Accel Pedal wiring and the 6 wires end up at the correct pins in the ecu, but I'm unsure of the throttle body itself. I really need to figure out what pins they're supposed to end up at and what position on the TB plug, like how it's shown in the thread for the Accel pedal.


Also, I've found this on the interwebs, but there's no clear pin numbers
http://www.linkecu.com/support/docum...e%20Wiring.pdf

I really appreciate any help you guys can throw at this, I'm stuck and only waiting on this to get it running! Here's a pic for inspiration!

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Old 10-01-2013, 09:30 AM   #80
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All the info you need should be on the first page


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Old 10-01-2013, 07:54 PM   #81
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So i haven't really had a lot of time to work on my car. The last thing i did was some wiring when i was able to get it to run. well as of this past weekend i cant seem to get my car to start. Throttle body doesn't function at all, as well as no spark of fuel from the injectors. No new codes on the ecu. This whole thing is killing me... I cant seem to get ahead.

The only thing that i did differently was install a new battery. Also my ecu was unplugged since i last worked on it.
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Old 10-03-2013, 10:01 AM   #82
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Has anyone had any power steering issues on their vq swaps?
My steering was stiff and shaky when turning fast which could mean power steering pump.
Yesterday the steering rack blew a seal leaking everywhere.
Is it time to rebuild both?
P.s. Im using the Chase Bays setup
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Old 10-03-2013, 11:56 AM   #83
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Question

Quote:
Originally Posted by Guilty1s View Post
To keep things carb legal you would have to incorporate the evap system which gets pretty elaborate with the fuel tank and canister setup but is very doable. There is a thread on here with someone who pretty much put the entire 350z in an s14
THIS. I need to find this.
My goal is to setup the VQ in my s13 and make it street legal. Anything else is secondary as this will be my daily driver...and i don't trust my luck with .

What options are there for hood clearance?
Also, what options are there for exhaust headers? I hear stock hits steering rack so thats a no-go?

Thanks for the ECU info, i'll keep that in mind!

I now have a VQ from 03-04 350z (engine only) sitting in my garage~
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Old 10-03-2013, 12:15 PM   #84
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Quote:
Originally Posted by dkim1985 View Post
THIS. I need to find this.
My goal is to setup the VQ in my s13 and make it street legal. Anything else is secondary as this will be my daily driver...and i don't trust my luck with .

What options are there for hood clearance?
Also, what options are there for exhaust headers? I hear stock hits steering rack so thats a no-go?

Thanks for the ECU info, i'll keep that in mind!

I now have a VQ from 03-04 350z (engine only) sitting in my garage~
Here is that thread. This guys fab skills are sweet.
http://zilvia.net/f/chat/384013-plusoneten-build.html

For hood clearance I just used spacers. I could get less of a gap if I cut out some of the bracing. Zenki seems easier to fit too.



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Old 10-03-2013, 12:48 PM   #85
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Quote:
Originally Posted by dkim1985 View Post
Also, what options are there for exhaust headers? I hear stock hits steering rack so thats a no-go?
HR and DE headers hit the rack. What we do is cut the flange off and a good mount back off the oem header and weld a new exhaust downpipe and flange to clear everything.
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Old 10-03-2013, 12:50 PM   #86
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I'm using stock manifolds... Just needed a BFH to dent in the secondary layer. No harm at all.


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Old 10-03-2013, 08:37 PM   #87
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In case anybody wanted to see my build thread.
http://zilvia.net/f/builds-builds-on...ng-budget.html


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Old 10-07-2013, 02:58 PM   #88
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I'm using stock manifolds... Just needed a BFH to dent in the secondary layer. No harm at all.


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Can somebody post some pictures of how their exhaust header setup looks like?
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Old 10-13-2013, 10:31 AM   #89
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so after doing some poking around i found that i dont have any power at pin 3 on the ecu.
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Old 10-21-2013, 07:42 AM   #90
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what are you guys doing with the alternator diode circuit?
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