G35 Coupe V35 2003 - 07 Discussion about the 1st Generation V35 G35 Coupe

2004 G35 coupe 6mt in limp mode after engine swap with 350z vq35de

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Apr 30, 2023 | 12:00 PM
  #16  
bigbodyg35's Avatar
Thread Starter
|
Registered User
Joined: Apr 2023
Posts: 17
Likes: 2
Infiniti g35 coupe 6mt
Originally Posted by cleric670
E10 is under the glove box, not near the O2 sensor harness.
how about F1? And checked yesterday and one of the ground wires on top of the timing cover was loose and when I tightened it the car cranked and started right away so I think that was apart of the problem and the other ground wire under the coolant reservoir is extremely dirty so tomorrow I’ll take a wire brush and clean it. I think what happened with the loose ground wire was I only hand tightened it and the vibrations of the engine loosened it a little bit and it been throwing off the car but the cel light is still on. I’m going to warm up the car and go into consult 2 and try to do the idle relearn procedure as well. I can’t get it to work doing the pedal dance so imma try consult 2
 
Reply
Old Apr 30, 2023 | 02:53 PM
  #17  
cleric670's Avatar
BANNED!!!
Joined: May 2017
Posts: 14,837
Likes: 2,497
From: Washington State
Coupe 6MT Premium RAS
Premier Member

F1 is the female side of the harness, E10/F1 is the same connection.

Yeah that ground in the center top of the timing chain cover (F23) is the ground wire for all the coil pack transistors and the ECM relay, will DEFINITELY cause a no-start. Possibly also the APP issue but I'm thinking that will probably still need to be troubleshooted since it's not the primary ECM ground. That just handles the ignition side of things.
 
Reply
Old Apr 15, 2024 | 02:47 AM
  #18  
redsmed's Avatar
Registered User
Joined: Apr 2024
Posts: 3
Likes: 0
G35 track
Originally Posted by bigbodyg35
hey I would love a reply. So I just swapped a 350z motor into my g35 coupe. It was an auto motor going into a manual car. Did the pilot bearing and everything. Swapped power steering pump and alternator bc different connections to harness. Used harness from original g35 motor and g35 ecu. But car is in limp mode. Essentially with a 350z throttle body the car will start but either have zero throttle response or it will act as if its limp mode won’t go above 3k rpm and climbs very slowly. I drove it once before the throttle body ended up stopping giving me response and the car started to get a little bit more responsive the more I drove it but it was on and off. Some points I’d have 5% throttle respond some times I would have 50%. Just throwing numbers off the top my head I didn’t have a throng to actually tell me. I have codes saying my app sensor is going bad and saying it’s sending a different voltage than the throttle body. With a g35 throttle body car will start then die right away as if the motor isn’t getting fuel but it like the throttle body just isn’t opening. Please let me know if I have to flash the ecu or what I’m at a stand still with this car too much money into it. Also don’t have the downstream o2 sensors(ones that go to cats) even installed or plugged in. Because with the swap we couldn’t get my old cats off the old headers so we used test pipes on new motor and the o2 sensors were seized in the cats so I just threw the car together without the 02 sensors. I’ve heard that could be causing this whole problem too. Just need a second opinion before throwing even more money into this car. Replaced throttle body and pedal with parts form junkyard from same year g35 as mine and still nothing please someone help.

did you ever find out what you need to do because I also swapped my engine I’m thinking I have to reprogram the ECU and put the correct in but I was wondering what you did
 
Reply
Old May 8, 2024 | 11:29 PM
  #19  
bigbodyg35's Avatar
Thread Starter
|
Registered User
Joined: Apr 2023
Posts: 17
Likes: 2
Infiniti g35 coupe 6mt
Originally Posted by redsmed
did you ever find out what you need to do because I also swapped my engine I’m thinking I have to reprogram the ECU and put the correct in but I was wondering what you did
hey man just seeing this now. I did figure out the problem. So there are three connectors next to each other on the left of your battery sitting on like the inner wall of you passenger fender. Well for me somehow a little pebble slipped its way into one of them and that was causing the problem. Car was in limp mode for months.the fact that it was something so stupid like that will be be death of me. But anyways man check all three of those clips hope you figure it out if you need anymore help dm me on insta @dead.g35
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
MaineG35x
G35 Sedan V35 2003-06
2
Feb 6, 2023 04:42 PM
six20aus
Engine, Drivetrain & Forced-Induction
13
Jan 14, 2022 07:06 PM
Yoyoloop
G35 Coupe V35 2003 - 07
9
May 26, 2021 01:09 AM
Ogee
Engine, Drivetrain & Forced-Induction
8
Jun 26, 2017 12:08 PM
LuisGee
G35 Coupe V35 2003 - 07
12
Aug 25, 2016 12:19 AM



You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 08:20 PM.