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Cranks great no start

Tiny
STINGER46
  • MEMBER
  • 2002 INFINITI I35
  • 3.6L
  • V6
  • 2WD
  • AUTOMATIC
  • 158,000 MILES
Parked it went to start it and it cranked but no start. Security light quit blinking and only lights up solid after ignition switch is on for 5 seconds. When starting is tried, it goes out. Also fuel pump can be heard. All same original keys. Have tried the sequences to start etc, and still just cranks. Disconnected and topped off the battery overnight and tried the sequences again, same. Cranks great but wont start.
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Thursday, July 11th, 2019 AT 12:14 PM

9 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,700 POSTS
Welcome to 2CarPros.

The first thing we need to determine if is the engine is getting spark to the plugs. Often times, a crankshaft position sensor will fail and the engine won't start due to loss of ignition spark.

First, here are a few links for you to review:

https://www.2carpros.com/articles/car-cranks-but-wont-start

https://www.2carpros.com/articles/how-a-crank-shaft-angle-sensor-works

https://www.2carpros.com/articles/symptoms-of-a-bad-crankshaft-sensor

If you find there is no spark, my first suspect is the sensor. Here is a link that explains how one is replaced:

https://www.2carpros.com/articles/crankshaft-angle-sensor-replacement

The attached picture shows location. Also, if you are able, here are the directions for testing and inspecting the sensor. Additionally, here is a link that explains how to check for spark:

https://www.2carpros.com/articles/how-to-test-an-ignition-system

+++++++++++++++++++++++++++++++++++++++++++++++

COMPONENT INSPECTION
Component Inspection

pic 2

CRANKSHAFT POSITION SENSOR (POS)
1. Loosen the fixing bolt of the sensor.
2. Disconnect crankshaft position sensor (POS) harness connector.
3. Remove the sensor.
4. Visually check the sensor for chipping.

pic 3

pic 4

5. Check resistance as shown in the figure.

___________________________________________________________

You will need a multi meter to check the part. Here is a link that explains how one is used along with a couple others you may find helpful:

https://www.2carpros.com/articles/how-to-use-a-voltmeter

https://www.2carpros.com/articles/how-to-check-wiring

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

_________________________________________________________

As far as the security system, if I recall it will shut down the fuel as well. You mentioned you hear the fuel pump turn on. If you do find there is spark to the plugs, then we need to suspect a possible fuel pump issue. You may hear the pump run, but it may not be sending fuel.

Here is a link that explains how in general to check fuel pressure:

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

If you look at pic 5, I attached the pressure info for you. The manual indicates with the engine at idle, but in this case it should be close with the key in the run position (engine off)
________________________________________________________
If you find the pump is bad, here are the directions for replacement. The remaining pics correlate with the directions.

++++++++++++++++++++++++++++++++++++++++++++++++++++++++

PROCEDURES
FUEL SYSTEM
Removal and Installation

WARNING: When replacing fuel line parts, be sure to observe the following.
Put a "CAUTION FLAMMABLE" sign in workshop.
Be sure to furnish workshop with a CO2 fire extinguisher.
Do not smoke while servicing fuel system. Keep open flames and sparks away from work area.

CAUTION: Before removing fuel line parts, carry out the following procedures:

a. Put drained fuel in an explosion-proof container and put the lid on securely.
b. Perform Fuel Pressure Release Procedure.

Fuel Tank, Fuel Pump Assembly, Fuel Lines

Pic 6

c. Disconnect battery ground cable.
* Always replace O-ring and clamps with new ones.
* Do not kink or twist tubes when they are being installed.
* Do not tighten hose clamps excessively to avoid damaging hoses.
* After installing tubes, run engine and check for fuel leaks at connections.
* Use only a genuine NISSAN fuel filler cap as a replacement. If an incorrect fuel filler cap is used, the MIL may come on.

Fuel Pump / Fuel Level Sensor / Pressure Regulator / Fuel Filter

pic 7

pic 8

REMOVAL - Fuel Pump / Fuel Level Sensor / Pressure Regulator / Fuel Filter
1. Perform Fuel Pressure Release Procedure.
2. Remove rear seat bottom.
3. Remove inspection hole cover located under the rear seat.
4. Disconnect electrical connector.
5. Remove the quick connectors.
6. Remove the six screws.

pic 9

7. Pull out the fuel level sensor unit and fuel pump.
Do not damage the arm of the fuel level sensor and fuel tank temperature sensor.

pic 10

8. Remove flange of fuel level sensor unit and fuel pump.
Using a screwdriver, remove the snap fit portion as shown in the figure.

pic 11

9. Push fuel level sensor flange.
Using a screwdriver, remove the snap fit portion as shown in the figure.

10. Pull up the fuel level sensor.

pic 12

11. Remove fuel filter from chamber.
Using a screwdriver, remove the snap fit portion as shown in the figure.

pic 13

12. Remove fuel pump, then push down the fuel pump as shown in the figure.

pic 14

13. Remove the pump support rubber from the fuel pump.

Fuel Pump / Fuel Level Sensor / Pressure Regulator / Fuel Filter

pic 15

Pic 16

INSTALLATION
Install in the reverse order of removal paying attention to the following.

Install the fuel filter and fuel pump with the tabs aligned, make sure a click sound of secure engagement is heard.

Securely connect the harness connector of the fuel pump.

Install the pressure regulator O-ring as follows.

CAUTION: When replacing, always use a new O-ring.
Handle it with bare hands. (Do not use gloves.)
Visually check the O-ring, mounting parts and mating parts for foreign materials and flaws.
Before installing, apply new engine oil.
To avoid damage, do not apply an excessive force (pulling or starching).

Install the pressure regulator as follows.

Fuel Pressure Regulator
pic 17

1. Insert the clip to the groove of the regulator.
2. With the clip installed, insert the regulator straight by matching the fuel filter protrusion and the clip notch.
3. Make sure that the fuel filter protrusion and clip notch are securely engaged.

______________________________________

I've given you a lot here. Sorry... Let me know if any of this helps, what you find, or if you have other questions.

Take care,

Joe
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Thursday, July 11th, 2019 AT 8:38 PM
Tiny
STINGER46
  • MEMBER
  • 8 POSTS
Jacob and Nicolas: so far on that infiniti 135 that wont start.I need a diagram of a switch installation and I also purchased an obd2 to see if there are any codes. Neither of us are techies so all of this is extremely difficult to interpret. I have a service manual but it too is not helping. More for the dealership person working on it. I haven't got dealership money. My son sent me a switch and key from a wrecked i35 so we could at least get it installed and running. Will worry about all the complicated stuff with keys and such when it comes to that. Right now we need to get it running. Thus the diagram of installing the switch. And thank you for your awesome help!
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Thursday, July 18th, 2019 AT 11:55 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,700 POSTS
Welcome back:

Which switch are you referring to? Is it the ignition switch, lock, or a different one.

Also, let me know what codes you found or if you have questions on the scanner.

Joe
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Thursday, July 18th, 2019 AT 6:31 PM
Tiny
STINGER46
  • MEMBER
  • 8 POSTS
Hi guys so grateful for your input. The replacement switch is the one the key is used in. Ignition. There is a key that came with the switch all we have to do is install. That's where the requested diagram comes in. We are going to attempt the scanning tool today. How hard could it be? Except for the fact it's close to 100 degrees outside and we have no garage. Another question that crossed my mind. Could the heat and the car sitting in it with a cover over to protect the paint have something to do with why this part, whichever one it is, has gone out? I read that in my net travels for answers. Send me a diagram of the ignition switch installation plz. And thanks again JoAnn
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Friday, July 19th, 2019 AT 9:44 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,700 POSTS
I went through two manuals and this is all I can find. See pic 1

Ugh. You may have to stay in contact while you do this with questions.

Joe
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Friday, July 19th, 2019 AT 6:41 PM
Tiny
STINGER46
  • MEMBER
  • 8 POSTS
Well we managed to get the old switch out and put the other one from a wrecked vehicle in and still no start. Codes reading p1610, 11, and 12, which are the nats codes right? So we tried everything we read to get it to run. Also changed battery in key fob and played around with that sequence. Before all of this he checked for spark and there was none. So no spark no start. Does the nats system shut down the spark as well as everything else?
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Monday, July 22nd, 2019 AT 9:41 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,700 POSTS
Welcome back:

I feel the codes are all tied together.

Self-Diagnostic Results:
LOCK MODE - displayed on CONSULT-II screen
DTC - 1610
Diagnostic Procedure 7

Follow the directions / flow charts in pics 1 and 2 and let me know if it helps.

Joe
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Tuesday, July 23rd, 2019 AT 7:16 PM
Tiny
STINGER46
  • MEMBER
  • 8 POSTS
I want to tell you guys thank you so much for all your assistance. It's going to have to be put into shop to reset the NATS, as that is where the three codes are all tied in. Making arrangements and crossing my fingers I have enough money! It is a shop that only works on Nissans and other imports so it should be a fairly easy fix. I hope! Thanks again and if I need anything further I will come back to you for sure. You taught me things I never even dreamt of but now I have learned so much! Many blessings to you all, JoAnn
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Wednesday, July 24th, 2019 AT 2:36 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,700 POSTS
Welcome back, JoAnn:

You are very welcome. I wish it could have been an easy fix, but it seems you have the same type of luck that I do. LOL

Regardless, let me know how things turn out for you, and if you have questions in the future, please feel free to come back.

Take care,
Joe
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Wednesday, July 24th, 2019 AT 10:57 PM

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