CEL on..then off after getting a CAI

[NissanNismoZ]

Alright, so i finally got a Cold Air Intake for pathy! and i like the improvement in MPG's and power.

BUT. I'm getting CEL problems.. Mainly when im coasting.. It'll be on and off through out the whole trip.. I have a video of it..which will help describe most of my problem.. Any ideas? Thanks!

I turn it off right as i turn home...and it came back on..youll see it towards the end of the video..

http://s208.photobucket.com/albums/bb9/Nismo_Nissan_350Z/?action=view¤t=a0275f39.mp4

Edited December 30, 2011 by NissanNismoZ

[sewebster]

What do the trouble codes say?

[NissanNismoZ]

They still read the same codes as usual.. im beginning to think i dont know how to read them..or something. Because i can check them from the ECU..then check them from a scan tool (wont have access to one until monday) and they be TOTALLY different..such as my ECU will read

Idle Switch

Fuel injector leak

Fuel injector Circuit

MAF sensor

Knock Sensor

 

And the scan tool will read

Vehicle Speed Sensor

 

I understand the speed sensor issue..i believe it more, as it was down to the only time i had a CEL problem was when my Speed sensor would malfunction somewhere in the cruise control, and not let it work until the CEL went away.

NOW since i installed my CAI my CEL is on and off constantly, and i know its not my speed sensor, as i can still use cruise control until the CEL comes back on for the VSS.

 

It's a big confusing mess but..i dont get how im not reading codes right...

Thanks!

[nismothunder]

Unhook the battory and see if it goes away, its getting more air then its ment too. Most CAI kit tell you too unhook your PCM fuse before install since it'll usally throw a code after install from the increase in air flow.