No start, but cranks
 

this car is becoming a never ending saga! Went to start the car after 2 days of sitting, no dice, cranks to the moon but no fire. The battery was getting week, so I hooked up a jumper, and boom it fired right up, oh ok. It ran for 5 minutes and then shut off like I hit the ign, but I was outside the car. Now I cannot get it to restart, just cranks. I smell fuel, so I beleive it is getting fuel(I will confirm after work, also will confirm spark after work) a tech a work was with nissan for 10 years, his short list is this:

Camshaft sensor bank 1, said it is a common nissan issue
Crank position sensor
if the timing chain stretched too far he said it would not start, but I doubt it, the car ran fine with no issues when I parked it, no symptoms of a steched chain or codes.

just looking to hear if anyone had similar issues, stuck at work and will be pondering this all day!

GRRRR. yes its boosted, and has been for 2k miles now and is fully tuned.

You can find OBD-to-USB (or Bluetooth) adapters for $20-50 and monitoring software for a Windows computer for free (Torque seems to be popular with the Android crowd, but it's not free). You can use that to monitor/log sensors and variables. Fantastic troubleshooting tool.

I can get an obd2 scanner that reads live data, but without a consult no sure it will pickup the cam and crank sensors...?

Some of the free apps I've found will allow one to set the Mode/PID manually. If you know the "address" of the variable, you can read it. Can't remember off the top of my head if the cam and crank sensor Mode/PIDs are published. They may be part of the standard PIDs, which means you should be able to select them from a list in the app. You may be able to figure it out at the OBD/CAN Wiki in my sig.

Stretched chain is unlikely. How many miles are on it? That is often caused from low oil level and/or excessive heat. A stretched chain will usually not cause a noticeable issue (noise,rough idle), but it WILL throw a timing related code. Also, if it is reading rpm, your crank sensor is fine. Just advice from my knowledge. Hope you figure it out!

Are you UpRev tuned? Did you get the USB cable to run Cipher?

yea you should be able to see everything with that...

I do not have a cable, I was told by uprev they discontiuned cipher...it seems it I might need something however...will the interface cable on uprevs website do the same thing?

I will do everything I know how before I tow it but how do boosted guys with no crash bar tow these cars? Car has 28k.

I will, just all the hits are coming at once, my pressure plate broke a few weeks ago, having a terrible time with my z1 2 piece rotors, and now this, just frustrating, but its the life I chose! will it read rpm if the engine is not running and just cranking? That seems to be the kicker.

Spitballing here- can you switch the camshaft sensors from side to side? If you can and the code moves with it, problem found.

no codes currently, thats part of the problem. Brent said it was always bank 1 sensor for some reason, never replaced a bank 2 haha.

Not even pending codes?

only p0106 map sensor, but that has been an on going battle since I have been boosted, Vince shut the code off with the tune but he said he has run into this before sometimes he has to send the map to uprev and they fix it, but it has not actually set a permenant code since the tune. Im gonna try to run home on my lunch break with the live data scanner and see what it reads.

Huh. That's very odd. It ws running well after the tune until this happened?