Hello! I have a 2013 fiat 500 Abarth that is running a EC phase 2 tune. I purchased the car with most of the modifications already done to it. I have pretty much everything essential to run phase 2. All I¬ím missing is just the big turbo upgrade which I¬ím soon planning to pull the trigger on once I sort the current issues that are going on.
Now I¬ím going to explain what I¬íve been dealing with, in hopes that someone has been going through the same things that I¬íve been dealing with. When I first purchased the car, the first CEL light that came on was the P0299 code, and ever since that code came on the car hasn¬ít been driving properly since. Whenever the car is under wide open throttle it would stutter or hiccup around 5000-6000k rpms. It would only do this if I was in sport mode. In non sport mode the car drives fine, pulls hard all the way to redline and boosts regularly up to 18-19 pounds. In sport mode, I would only get about up to 20-21 pounds of boost. If I was in fourth gear or fifth gear rolling into the boost it would sometimes get to 23-24 pounds. Keep in mind I have a DEPO boost gauge, cause I know that stock boost gauge isn¬ít quite accurate. I contacted Eurocompulsion through Instagram, and they told me that usually when this code is thrown its always either a leak, or improperly setup waste gate. They also told me that the car should be pushing 25-27 pounds of boost depending on the weather. I bought the silicone vacuum line kit from EC to replace the old lines that were on the car. After I installed those lines, I took the car to a BMW shop that works a lot with the n54 platform. I got a smoke test done to see if I have any boost leaks, and to my surprise there were no leaks coming from anywhere. When I was explaining to the shop what I was dealing with they told me to run data logs and send them to my tuner to see what¬ís exactly going on, which I¬íve yet to do but I¬ím planning too. I just need to get in contact with EuroCompulsion. They also told me that the silicone lines that I bought were no good, and that they collapse under high boost which I was skeptical of. What¬ís strange is now whenever I drive the car in non sport mode it goes into limp mode occasionally but it only restricts my boost to 10 psi so the car is still somewhat drivable. If I just turn the car on and off it drives like normal again. What¬ís interesting to note I¬íve had the car go into a limp mode where the car drove so slow, I thought I was going to die on the interstate. It wouldn¬ít boost past 6 pounds. But that hasn¬ít happened in a while. It also happens more often when it¬ía hot outside and I¬ím driving the car for a prolonged period. As for sport mode now, if I go into WOT the car goes into limp mode very single time restricting my boost at 10 pounds. At this point, I haven¬ít even been using sport mode at all since the car does not like it.
Now that I know I¬ím not dealing with a boost leak, I need to check out my waste gate like EC suggested. They told me to figure out the crack pressure, and adjust the preload on it if need be. I¬íve yet to do this, and I hope this solves my problems.
Now to address the other CELs. The P0456 code which is a small EVAP leak has accompanied the P0299 code recently. The whole EVAP/PCV system on our car is atrocious. If need be I¬íll replace everything if necessary. I just want these codes to go away so my car can run healthy again. I just don¬ít know if this code is popping up in association with the P0299 code. As for the P0457 code, I bought a gas cap from Mopar with a key lock in hopes that it would fix this code however it¬ís still popping up. If anyone has any information to share, it¬ís greatly appreciated. I just want this car running at 100%. Thank you!