Car won't start?
09-08-2010, 09:33 AM
#21
Seems we have the exact same issue at the exact same time, maybe it was a timebomb Infiniti put in the cars lol
I read your thread and I have the exact same symptoms, car cranks but wont start, changed all crank and cam sensors, checked codes, checked every fuse (Even checked them with a multimeter for continuity) The only thing that starts the car is a push start. After the car runs for a bit I can start it with the key
Hopefully we can figure this out together
I read your thread and I have the exact same symptoms, car cranks but wont start, changed all crank and cam sensors, checked codes, checked every fuse (Even checked them with a multimeter for continuity) The only thing that starts the car is a push start. After the car runs for a bit I can start it with the key
Hopefully we can figure this out together
09-08-2010, 09:45 AM
#22
I should add after replacing the driver side cam sensor and removing the throttle body I did not do any of the relearn and reset procedures I heard needs to be done any time the harness is removed. Did read somewhere here a member had this same TPS issue and it ended up being a loose connection near the ecu.
09-08-2010, 10:58 AM
#23
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I did have a similar issue about a year ago on the dyno and it ended up being a throttle body. What are the chances that I go through 2 throttle bodies in less than a year though? You should try swapping out the TB with a known working one. If i knew anyone close with one I could do it
09-08-2010, 05:37 PM
#28
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Hal put my haltech in his car and it ran fine. I don't know how water would get in my factory ecu when it's behind the glovebox. Luckily I have a vq40 frontier so I've been swapping parts to see what works and what doesn't. Throttle bodies are different though
09-09-2010, 04:55 AM
#29
I did have a similar issue about a year ago on the dyno and it ended up being a throttle body. What are the chances that I go through 2 throttle bodies in less than a year though? You should try swapping out the TB with a known working one. If i knew anyone close with one I could do it
09-13-2010, 06:21 PM
#32
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I emailed Hal my data log and he determined my cam and crank sensors are not in sync. I replaced all the sensors already so its either a wiring issue, ecu issue, or teeth on the flywheel are damaged
09-14-2010, 09:37 AM
#34
^^ If you unplug the crank angle sensor (part the reads the flywheel teeth), it should crank a little longer than normal then the ECU will switch to using the cam sensor to run the motor and it will start. This is what I have seen happen on a rev-up, not sure about the non-rev but it is most likely the same.
09-14-2010, 09:51 AM
#35
your miss counter was showing miss's after startup? Thats how Hal explained to me if your sensors are not lined up...
My car was weird cuz in the same log i'd get 1 miss at start, then it would go to 2 and then back to 1 by the end of the log. Hav eyou tried swapping back stock injectors and stock ecu and see if it runs. My car was perfect on the stock setup which narrowed it 100% at the Haltech.
I think this all goes back to the issue that 2003 G35 have issues with Haltechs, even if IP or Haltech doesnt want to acknowledge it. Still waiting on the cam phasing fix.....
My car was weird cuz in the same log i'd get 1 miss at start, then it would go to 2 and then back to 1 by the end of the log. Hav eyou tried swapping back stock injectors and stock ecu and see if it runs. My car was perfect on the stock setup which narrowed it 100% at the Haltech.
I think this all goes back to the issue that 2003 G35 have issues with Haltechs, even if IP or Haltech doesnt want to acknowledge it. Still waiting on the cam phasing fix.....
Last edited by str8dum1; 09-14-2010 at 09:52 AM.
09-14-2010, 07:13 PM
#37
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your miss counter was showing miss's after startup? Thats how Hal explained to me if your sensors are not lined up...
My car was weird cuz in the same log i'd get 1 miss at start, then it would go to 2 and then back to 1 by the end of the log. Hav eyou tried swapping back stock injectors and stock ecu and see if it runs. My car was perfect on the stock setup which narrowed it 100% at the Haltech.
I think this all goes back to the issue that 2003 G35 have issues with Haltechs, even if IP or Haltech doesnt want to acknowledge it. Still waiting on the cam phasing fix.....
My car was weird cuz in the same log i'd get 1 miss at start, then it would go to 2 and then back to 1 by the end of the log. Hav eyou tried swapping back stock injectors and stock ecu and see if it runs. My car was perfect on the stock setup which narrowed it 100% at the Haltech.
I think this all goes back to the issue that 2003 G35 have issues with Haltechs, even if IP or Haltech doesnt want to acknowledge it. Still waiting on the cam phasing fix.....
thats probably one of the last things I would do. I currently have a completely full tank of E85 and I would have to drain it and fill the car up with regular gas to test that.
I inspected the flywheel and there is no damage or any signs of abnormal wear. Im going to try to rewire the crank sensor and see what happens
Rich, here is my datalog if you want to take a look at it
http://www.easy-share.com/1912274849/cranking.csv
open it in haltech ecu manager and use the PC logger playback feature to look at it in real time.
09-20-2010, 02:34 PM
#39
Ya so your Mcount is rising, giving same conclusion as Hal about the sensors not aligned.
But any reason why your battery voltage is taking such a dump? I assume you've tried to jump start as 9V wont turn anything over....
But any reason why your battery voltage is taking such a dump? I assume you've tried to jump start as 9V wont turn anything over....
thats probably one of the last things I would do. I currently have a completely full tank of E85 and I would have to drain it and fill the car up with regular gas to test that.
I inspected the flywheel and there is no damage or any signs of abnormal wear. Im going to try to rewire the crank sensor and see what happens
Rich, here is my datalog if you want to take a look at it
http://www.easy-share.com/1912274849/cranking.csv
open it in haltech ecu manager and use the PC logger playback feature to look at it in real time.
I inspected the flywheel and there is no damage or any signs of abnormal wear. Im going to try to rewire the crank sensor and see what happens
Rich, here is my datalog if you want to take a look at it
http://www.easy-share.com/1912274849/cranking.csv
open it in haltech ecu manager and use the PC logger playback feature to look at it in real time.
09-20-2010, 07:29 PM
#40
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Hal is coming to my house this week to diagnose the problem, now thats what I call service!
