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limp mode? how to get out of it

Originally Posted by FPenvy ... hitting it with a scanner and seeing if a code pops. there may be something bigger than just limp mode. ... Originally Posted by Katiehp0

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Old 09-17-2015, 05:03 PM   #16 (permalink)
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Originally Posted by FPenvy View Post
... hitting it with a scanner and seeing if a code pops. there may be something bigger than just limp mode. ...


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Originally Posted by Katiehp0 View Post
yes will definitely do that alittle bit later today and about the battery part i took that out for a few hours and same problem existed.
If you had the battery out for that long then you have either a "permanent" DTC (survives a power-off but can be cleared with a scanner) or you have a mechanical/sensor problem that the ECM doesn't like much but not bad enough to shut down. Edit: or it could be both.

For DIY diagnosing/repairing/modding, the FSM is the place to start. It can be intimidating if you are new to working on cars and Nissan sometimes has some weird nomenclature but it is what a Nissan tech will use (along with CONSULT software - if you have to ask how much, you can't afford it) if you take it to a dealer.
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Old 09-17-2015, 06:47 PM   #17 (permalink)
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i wish it was around 3k too bad it woundnt accelerate up to 1500, like i said when i first start the car it would go up to 8-9k after a few seconds of revving it gets down to 1k and when i accelerate it gets stuck at 1500.. i have a automatic
8,000 to 9,000 RPM?
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Old 09-17-2015, 06:53 PM   #18 (permalink)
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8,000 to 9,000 RPM?
I've been assuming that was the gauge's startup self-test. If he's actually revving that high, it would explain a lot.
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Old 09-17-2015, 07:37 PM   #19 (permalink)
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8,000 to 9,000 RPM?
my bad haha 7-8k
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Old 09-17-2015, 07:39 PM   #20 (permalink)
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I've been assuming that was the gauge's startup self-test. If he's actually revving that high, it would explain a lot.
the only reason why i rev to the maximum is because mine cant go anymore than 1500k after that
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Old 09-17-2015, 08:08 PM   #21 (permalink)
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Was the car wrecked? Your other posts make it seem like it was in an accident. Was there a lot of damage?
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Old 09-17-2015, 08:23 PM   #22 (permalink)
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the only reason why i rev to the maximum is because mine cant go anymore than 1500k after that
Why would you rev a cold engine to 7-8 kRPM?
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Old 09-17-2015, 08:28 PM   #23 (permalink)
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Why would you rev a cold engine to 7-8 kRPM?

This. Let the car warm up.
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Old 09-17-2015, 08:42 PM   #24 (permalink)
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Was the car wrecked? Your other posts make it seem like it was in an accident. Was there a lot of damage?
yes, yes it is, i never mention that because i didnt think it was a big deal.
no its not bad at all, its pretty decent, but so far i think i know whats causing it i updated the post at the top to let you all know. it was the throttle peddle position, i just need to know how to fix it then that should be good.
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Old 09-17-2015, 08:45 PM   #25 (permalink)
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Why would you rev a cold engine to 7-8 kRPM?
not for fun thats for sure, it was a problem with the car so thats why i rev it, is it bad to rev a car if its cold?
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Old 09-17-2015, 08:45 PM   #26 (permalink)
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This. Let the car warm up.
thanks, so its better to let the car warm up alittle to rev it?
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Old 09-17-2015, 08:48 PM   #27 (permalink)
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Originally Posted by Katiehp0 View Post
... i believe its p2135 something about the throttle peddle position sensor ...
Could also be the throttle position sensor(s) (or the actuator(s)) on the throttle body(s). Search this site for "throttle relearn".
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Old 09-17-2015, 08:53 PM   #28 (permalink)
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Could also be the throttle position sensor(s) (or the actuator(s)) on the throttle body(s). Search this site for "throttle relearn".
i think its the position sensor but ill check both
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Old 09-17-2015, 08:54 PM   #29 (permalink)
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Why would you rev a cold engine to 7-8 kRPM?
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This. Let the car warm up.
This times 100.
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Old 09-17-2015, 09:00 PM   #30 (permalink)
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not for fun thats for sure, it was a problem with the car so thats why i rev it,
The logic behind your procedure escapes me. Why would you want to spin a malfunctioning engine (or any other device) to its normal maximum? The car believes it doesn't need to spin very fast - until you figure out what the problem is, pay attention to the car.

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is it bad to rev a car if its cold?
Yes. Not likely to do immediate damage to an engine in good shape but it takes a few minutes off its lifespan. Bumping the limiter, even when warmed up, is not something to get in the habit of doing unless you can afford to fix things when they break.
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