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2006 G35 Coupe 6MT cranks, but wont start

  #16  
Old 10-29-2018, 08:27 AM
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Originally Posted by XxCHICKENBOOBxX View Post
I will be ordering one of those Z1 fuel pressure adapters so I can test fuel pressure. I did check my spark first thing when the car quit running, and I don't have spark. I did not in fact change my crank position sensor, I will have to wait till I get some friends to help me push the car into my garage to do that one, and I did not do my front two cam position sensors.
If the crank sensors are not sending the correct signals to the ECM, the ECM is not going to allow the fuel pump to turn on.
You may want to hold off spending money on a fuel pressure adapter until you can verify that you are getting spark.

Telcoman
 
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  #17  
Old 11-02-2018, 11:59 AM
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Infiniti G35, Coupe 6MT, Caribbean Blue, Tein Lowering Springs, Spectre Air Intake, Straight Pipe
Originally Posted by telcoman View Post
If the crank sensors are not sending the correct signals to the ECM, the ECM is not going to allow the fuel pump to turn on.
You may want to hold off spending money on a fuel pressure adapter until you can verify that you are getting spark.

Telcoman
I can hear the fuel pump prime when I turn the car on.
 
  #18  
Old 11-02-2018, 12:13 PM
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Crank sensor will prevent the fuel pump from turning on, cam sensors will prevent the injectors from opening and the coil packs from firing.
 
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Old 11-02-2018, 12:54 PM
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Infiniti G35, Coupe 6MT, Caribbean Blue, Tein Lowering Springs, Spectre Air Intake, Straight Pipe
I would also like to note that just before my car decided to stop starting, it started doing this thing where it would go in and out of power when under load, so for example, if I were to rev out the car in second gear from 4k rpm to 7k rpm, then the engine would do this thing where it sounded like I was cutting throttle every half a second or so, up until I hit 7k rpm. I haven't been able to find any info on this, so if any of you know anything about this, or think it may somehow be related, then I would love to hear about it.
 
  #20  
Old 11-02-2018, 12:56 PM
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Yep, sounds like a cam sensor failure.
 
  #21  
Old 11-02-2018, 03:54 PM
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Infiniti G35, Coupe 6MT, Caribbean Blue, Tein Lowering Springs, Spectre Air Intake, Straight Pipe
Does having low fuel pressure cause the engine not to fire spark?
 
  #22  
Old 11-02-2018, 07:39 PM
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No, there is no fuel pressure sensors on the vehicle, it would just get less fuel which would result in a leak mix, be sensed by the upstream O2 sensors, and the ECU would attempt to compensate by increasing fuel trim.
 
  #23  
Old 11-05-2018, 12:34 PM
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Infiniti G35, Coupe 6MT, Caribbean Blue, Tein Lowering Springs, Spectre Air Intake, Straight Pipe
So I went to test fuel pressure, and my fuel pump decided to quit priming. I also noticed that when I turn my key to accessory, I don't have a check engine light. From what I've heard, not having a check engine light when you turn the key to accessory means that your ECU is junk. There is a shop about 30 minutes away from my house that claims they can fix my ECU for $325.
 
  #24  
Old 12-03-2018, 02:01 PM
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Infiniti G35, Coupe 6MT, Caribbean Blue, Tein Lowering Springs, Spectre Air Intake, Straight Pipe
Ok, so the car still isn't running. Here is an update on everything I have done to the car; I have tried scanning the ECU since the whole fuel pump deal, and it wont read that there is an ECU in the car. I have tried swapping the ECU from a different car, and that one didn't read either, so it appears that something in the car is causing the ECU to not read (I had a shop check both ECU's, and was told that both of them are good). My battery has charge, so it's not that. I bought a new IPDM, as I assumed that the IPDM had gone bad due to some pretty gnarly corrosion and holes punched in the box. Replacing the IPDM did not allow the ECU to read, so I am still at a loss as to what the problem is.
 

Last edited by XxCHICKENBOOBxX; 01-06-2019 at 08:32 PM.
  #25  
Old 12-03-2018, 04:15 PM
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Originally Posted by XxCHICKENBOOBxX View Post
Replacing the IPDM did not allow the ECU to read, so I am still at a loss as to what the problem is.
Don't bother reading and following the FSM as the vehicle most likely will probably never run again?

"REPLACE ECM
1. Replace ECM.2. Perform initialization of IVIS (NATS) system and registration of all IVIS (NATS) ignition key IDs.Refer to BL-268, "ECM Re-Communicating Function"3. Perform EC-77, "VIN Registration"4. Perform EC-78, "Exhaust Valve Timing Control Learning (M/T models)".5. PerformEC-78, "Accelerator Pedal Released Position Learning".6. PerformEC-79, "Throttle Valve Closed Position Learning".7. Perform EC-79, "Idle Air Volume Learning"

Telcoman
 
  #26  
Old 12-04-2018, 10:46 PM
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maybe the key
 
  #27  
Old 12-07-2018, 08:41 PM
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03 g35 completely murdered out, 18 inch enkei rf, dropped 2 inches, test pipes
yo

any update on the G?
 
  #28  
Old 01-02-2019, 09:57 PM
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Infiniti G35, Coupe 6MT, Caribbean Blue, Tein Lowering Springs, Spectre Air Intake, Straight Pipe
The car is still not running.
 
  #29  
Old 01-02-2019, 10:01 PM
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Infiniti G35, Coupe 6MT, Caribbean Blue, Tein Lowering Springs, Spectre Air Intake, Straight Pipe
Originally Posted by wteschnerjr View Post
maybe the key
Hmm, maybe. I suppose only a dealership would be able to program a key to my car?
 
  #30  
Old 01-02-2019, 10:03 PM
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03 g35 completely murdered out, 18 inch enkei rf, dropped 2 inches, test pipes
i did a little research as well and found another owner had same problem you were describing and he had a spare key he had been using and the chip went bad, he switched back to factory key and car started right up with no further issues. hope that helps man. id try that one last thing and then make a decision
 

Last edited by MurdaG; 01-02-2019 at 10:20 PM.

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