Hello, I have a 2014 Evo X GSR, I bought a Cobb AP V3 and reflashed my car with a Stage 1 Map, I also installed the blue mitsubishi relay, first days was everything ok but then my car started to do weird things, I really don't know how to describe this well, but when I'm at WOT (Wide Open Throttle) is like boost drops down a little and then go up again, first days this was sometimes but now it does it every time I go WOT, it looks like a clutch slip but I don't hit the clutch at all I'm at WOT.

Here is a video of the first days (5 days after the reflash) at 3k RPM I'm at WOT and at 4.1k RPM the boost goes crazy and then normal.

Now (15 days after the reflash) it is worst than the video, I get a really strong boost pull from 3k RPM at WOT but it goes crazy for a second and then it goes normal.

I've unistalled Cobb AP V3 and removed the blue mitsubishi relay but the problem is still there, my car never did this before the reflash. I'm afraid something broke, I've tried to read CEL with the AP but no errors. Can somebody help me please? any idea what the problem is?

Thanks
Thank you.

 

Did you buy the car new? Used? Mileage? Any other mods?

 

Yes I bought it new, it has 4970 miles now, only mods are the mitsubishi blue relay and cobb AP V3

 

If you're not sure, take it in to the dealership. They won't say anything about the relay, and you already removed the ap. Have them look at it.

 

Yes you are right, I will take it to the dealership.

Thank you

 

What country are you in? Chances are you got the wrong AP or flashed the wrong map.

 

I live in Peru and bought my car here, I Have a USDM AP but I'm not sure if my car is USDM, EDM or JDM, my speedometer reads in kilometers and my steering wheel is on the left, under the hood says this



So I think it's probably USDM.

I've uninstalled the AP and took the car to the dealership, they said to me my ECU parameters are not original (looks like flashed) and the problem with my car is a fuel pressure drop down, but the still can't fix it.

 

That is your problem. Cobb does not support a South American market. Usdm stands for United States domestic market. There is also Japanese, Australian and European I believe. The AP is not designed to work with your car. Take it to a tuner and get an open source tune or email Cobb and see if they can get you a map.
It's definitely not usdm because we use miles per hour, not kilometers.

 

I think I will get an Etune but my car is at the dealership now, I told them I didn't do anything, I've unstalled the AP. Do you think the dealership will be able to load the original rom to my car?

 

That is lying. I hope they will make you pay accordingly.

 

Ok.....

 

If you uninstalled it then the original rom is back on it. Pay to play. Man up, pay for your mistake, and do better research before throwing parts on your car next time is my advice.

 

To put it nicely!

 

Ok thank you, you are very helpfull, I'll tell them I've installed a Cobb AP so I'll lose my warranty

 

Hey, I had a similar problem when I was doing e-tuning, it wasn't exactly this, mine were at startup (very scary) and at some point I couldn't even uninstall the AP . What I ended up doing was disconnecting the entire ECU, left it disconnected for 30-60 seconds, then plugged it back in. That resolved my issue.