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2003-2009 Nissan 350Z

Limp Mode?

Old Dec 8, 2014 | 07:12 AM
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Default Limp Mode?

I really need some help with this. I've looked it up multiple times on different websites, but everything i find is not clear on how to get it out of limp mode.
I just replaced my exhaust with a newer one and afterwards i turned on the car and it was in limp mode.

I made sure everything was plugged in, the o2 sensors were fine. There should be nothing wrong with the MAF because i didn't mess with it.
If anyone could help me out with this i would really appreciate it.
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Old Dec 8, 2014 | 07:19 AM
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You need to get the codes read so you can see what might be wrong with your car. If that is inconvenient, you might just try disconnecting your battery for an hour or two to reset everything. If that doesn't work, you might need to get the car to a mechanic to diagnose and fix the problem.
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Old Dec 8, 2014 | 07:21 AM
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I have gotten the codes and it says something about the MAF sensor.
I am ordering a new MAF sensor today so hopefully that will be the end of the problem.
It came up with a bunch of codes but i think majority of them sounded like it was caused because it was in limp mode.
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Old Dec 8, 2014 | 07:52 AM
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You need a broader understanding of what 'limp mode" is. Nissan designed it so that if the Z's diagnostic system shows trouble codes that could cause engine damage or driveability issues, it will activate. The idea is to prevent owners from ignoring the problem(s) and just driving the car into the ground, or losing control and hitting someone else. Without knowing what CELs you're seeing, and having an experienced Nissan tech handling the diagnostics, you're really just guessing and throwing parts at the car.
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Old Dec 8, 2014 | 08:25 AM
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I understand that, but when replacing the exhaust i can only think of two things that would fix it and make it work properly. The fact it happened after i replaced the exhaust, i believe it is not that bad of a things and won't make me "lose control" or anything like that. I appreciate the advice though.
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Old Dec 8, 2014 | 11:06 AM
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If it's indeed in limp mode, maybe its because the mixture ratio is way too lean, worse off after exhaust change. Went in limp mode to prevent detonation.

Are you tuned?
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Old Dec 8, 2014 | 11:55 AM
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Check for any air leaks, and get us the codes.
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Old Dec 8, 2014 | 03:45 PM
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I will have to take pictures soon. Thank you guys. I am not tuned though maybe i will have to get tuned.
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