Ok pretty much I went out for a tune from top secret in texas on my 07 and the car was running fine. After the flash and such the car started having an issue, it would crank for a good solid 4 seconds and then startup and has been doing it ever since. It's not random it always does it, it never doesn't start but it always takes a good solid couple seconds and throws those lights. So we flashed back the stock tune and it still had the same issue. My CEL is on for my cam position sensor as is my TCS and Slip, however I brought it to a shop and they swapped 3 different sensors in that they know work and still the same problem.

So at the shop it was hooked up to some sort of computer and we noticed that the readings on one of the cam phaser banks wouldn't fluctuate as I revved the car where as the other would so they weren't sure if the cam was locked or something (Idk what that means). The car drives normal except if I try to get on it even slightly I can tell it hesitates so I don't do that.

A suggestion was it could be the ECU because they can't imagine a tune would cause those issues (and to test it out with another ecu) and someone else said that they found another 07 had a similar issue after a turbo kit install and that it was in the wiring harness. He explained a tech at infiniti said their 07-08 cars had a weird wiring harness configuration where the crank sensor and the 4 cam sensors actually split from the harness into a plug and then reentered the harness again (weird) and he said they replaced them often under warranty so that he wonders if nissan did that too.

I don't know if that's what it is, does anyone have an idea?

 

^^Hmmm,,check for water or corrosion at the IPM is the fuse/relay box behind the battery..And why you went to far to get the car tune??Martin is good doing this on g's or z!!

 

because Smoky Nagata came to tune and that's who I've always wanted to tune my car. I will check for corrosion, it's worth a shot. Thanks

 

What do you have done to your car ? I have a 07 and never had such issues.

 

Intake, exhaust, hfc, tune. just happened after the tune then we flashed it back to stock, same issue

 

why did you pay for a tune with just bolt ons (i know there is an advantage but not that much) why not just save your money boost it and then have "smokey" tune your car...

 

cmon guys lets keep this on topic I went for several reasons and don't want to boost my car, and I doubt smoky is coming around again anytime soon and I wouldn't have been given the chance if i was big turbo and all that anyway, there was a lot more to getting that opportunity than you think.

bump for some help lets stay on topic guys

 

Lemme look in my ECU stack and see if I got a 07 ECU. I can strip the security off of it so we don't have to rekey your bcm. This way we can see if the ecu is the issue.

The only thing I have seen over the years that matches your problem was when a customer of mine installed a early series of JWT cams and would occasionally throw a cam position code and have a hard start condition.

Not to step on toes... but I would like to pit that Top Secret tune against one of mine.. on one of my ECUs. I'll cover the expenses / dyno if you are game !


Martin

 

works for me, just keep in touch