Last night after driving on the freeeway as I exited the ramp in light traffic and my car goes into limp mode. I pulled over and restated it and it drove fine, but with the SES lght on.

I drive home which is about 20 minutes and everything is fine. Then I pull the codes using the gas pedal method and I get some TPS ones. I cleared them, drove it another half hour and it hasn't come back.

Normally I wouldn't be to concerned about this but, I have a track event in a couple of weeks so I am gonna be driving 8 hours total and spending the weekend at the track.

I'm not sure what to do, I cant take it to the dealer since it is fine, nor do I want to. This is the first time I have had this issue.

Should I be concerned, or treat it as a fluke? Maybe my wife kicked the UTEC?

Thanks for your help!

 

Get the codes read.. But limp mode unles there really is a prob and its driving fine is nothin. I had limpmode once. Not on my Z. But I let the car sit all day and about 8 hours later I drove it away fine.. Let the ecu reset.

 

What are your mods besides utec? And yes.. It could be normal.. just need ecu reset..

 

Pop charger, MREV2, 5/16 spacer, headers, HFC's, Nismo exhaust.

I already reset the ECU, I just hope it doesnt happen again when I'm at the track.

The codes that I got are:

1610
1614
1615
2135

They all appear to be TPS related.

 

Anyone else have any input?

I would love to hear from some Nissan techs on what they think.

 

I have a Utec, with a stillen blower. a couple of months ago my Z kept going in limp mode, even thought I had not gone into boost, and I had Thottle Position Sensor check light also, I took it to the dealer and they replaced the sensor, and still the car went into limp mode frequently, the dealer agreed to replace the throttle body under warrenty, the car has worked fine ever sense except the random misfire CEL kepts coming back every couple of hundred miles.