Alright, here is an update

Did it again during spirited driving, again.

My exhaust always smells like a go kart after a spirited drive.

If these 2 things are related I am thinking one of the 2:

The car needs to get tuned

My HFCs are bad

Any thoughts?

 

if your car goes into limp mode it should cut off throttle anything pass 3k rpm or something like that. Do you have a piggyback ecu connected or something? Mine went into limp mode because the harness became loose.

Limp mode also throws a cel. Dont try to reset the ecu or disconnect the battery if limp mode occurs. Drive the car slowly and carefully until the cel appears and post up the codes here.

 

No, I dont have a piggyhback ECU or anything, but I feel like a tune might solve this :S Just a feeling. It has happened several times and has never thrown a CEL, I wish it did so I would have a starting point.

 

Also, these problems only started happening after I installed my nismo bumper (Weirdest part to be giving problems) which makes me think it could be a cooling problem, since the new bumper channels air into the radiator differently. It could be the transmisssion ?

 

How did your ead the codes? If you have a scan-tool, hook it up and monitor the operating conditions/live info.

You want to watch 'fuel trims', short term and long term. If they're bouncing around or 'pegged' out then it's probably a bad MAFS.

Limp mode usually cuts power, there's a couple differnet types/levels of limp mode though. MAF sensor failure/crap readings will not let the car rev over 2000 RPM, and that sounds like what the issue is.

 

I thought you have test pipes? Test pipes smell. Test pipes don't have cats, they eliminate them.

 

I have Fast Intentions HFCs, and no tune. I barely passed drive clean


I had tried reading it, but not when it was in limp mode. Ive cleaned the MAF a few times, and the car is absolutely fine as long as I am not driving it quite that hard.

I dont have a CEL, but I have tried reading codes regardless. I didnt come up with anything.

Are you suggesting I hook up the OBD II reader, go out and abuse it (with the reader still hooked up), hoping the limp mode will resurface, and then hopefully I will have codes then? I thought the code reader only worked when the engine is off.

 

No you want to use the scan tool to monitor operation. Most scan tools have a 'live diagnostic', or 'monitor mode' where you can read various engine sensors, etc during operation of the engine.

You want to watch it. Specificall, fuel trims.

 

Im not sure if mine does that. Do you have any recommendations for one that does?

Im going to look for some that work with droid.

 

I booked an appointment to get it looked at /diagnosed. Im only down for the 1 hour diagnostic, not going to pay them to take guesses

 

Let us know what happens!

I know there's a few free-apps that will do this but I can't tell you which ones, I have no clue.
try the random little question thread for that answer.

 

I think the torque pro app looks good, expensive part is the bluetooth OBD 2 part, the app is $5 but is reviewed well

 

forget the dealer and get it? Or have to wait?

 

I think that the dealer still has more tools at their disposal than I have

 

Ill probably get it in either case though, but I have looked at this with a simple OBD 2 reader and didnt get anything.