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Old 06-22-2016, 11:06 PM   #12 (permalink)
Jhill
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Join Date: Mar 2016
Location: San jose
Posts: 854
Drives: 2013 370z sport
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Quote:
Originally Posted by SouthArk370Z View Post
I am glad to hear that you are learning how to work on cars. It will save you a lot of money in the future and may get you out of a bind when the car goes into limp mode some moonless night on a deserted road. And it can be very satisfying. But sometimes you have to get some help or farm the job out to someone else. I was an electrician and instrument tech for a couple of decades and I would still suspect the wiring if I had done the job - feces occurs. Find somebody that knows a little bit about electricity/electronics and get them to help you trouble-shoot. Figuring out what is wrong should be pretty easy (fixing it may not turn out that way, but that's another thread).

I am not 100% certain that the problem is not somewhere else but am pretty sure the problem is related to what you did. If not the external wiring, then the internal wiring of the sensors. The timing is right and the symptoms seem to point in that direction. Maybe you shorted something out in the ECM or there is a wiring problem in the engine compartment.

And NEVER work on fuel systems, brakes, traction control, &c unless you know what you are doing. If you have any doubts, find someone that knows what they are doing to help.

PS: Disconnect the battery before doing any electrical work. You can find the procedure in FSM or many threads on this site. The same threads will usually tell you how to reset windows and other quirks that pop up when the power is killed.
as a journeyman level drivability/electrical diag tech for the last 11 years, up until this last year when finally leaving automotive to actually make a living so I can afford my own z and not fix everyone else, or in my case everyone else's corvette. Loved the work (once I got to a specialized role, no heavy duty, didn't have to do anymore engine R&R or trans etc,) hated the pay and the BS warranty times etc etc.. but I am fairly certain (I'm not there testing so I cant say 100% without a doubt) that you goofed on your wiring. Maybe you screwed up and wired something into the fuel tank pressure sensor? the multiple high voltage codes you have would re enforce my believe that somehow you have screwed up the 5v ref. and the timing of it too.
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