JB4 Issues Limp Mode

[xRagee23]

So I was on my way home on the highway I was running map 3 with half a tank of 98 octane. I was on half throttle when all the sudden I feel the transmission shift hard and then feel the car loosing power and got a check ECS system message. I pulled over to the side of the freeway and the car has no power at all the rpms would not go up at all. I turned the car off and on and had the check engine light on and car still had little to no power. I got off the freeway scanned the codes with my OBD2 scan tool I had in the car and got a lot of codes such as Turbo overboost, no signal to O2 sensors, so I immediately thought it was the JB4 since the wires tap into the O2 sensors. So I disconnected the JB4 and car ran fine. I’m thinking the JB4 failed and the cars ECU detected higher than normal boost pressures and went into limp mode. I also had the car die on me multiple times when trying to back out of a parking lot one time as well. The car would idle for about 10 seconds and then die, again I disconnected the JB4 and car ran fine. I’m suspecting maybe an intermittent faulty JB4 unit however I can’t say for sure.

 

[Getstung18]

So I was on my way home on the highway I was running map 3 with half a tank of 98 octane. I was on half throttle when all the sudden I feel the transmission shift hard and then feel the car loosing power and got a check ECS system message. I pulled over to the side of the freeway and the car has no power at all the rpms would not go up at all. I turned the car off and on and had the check engine light on and car still had little to no power. I got off the freeway scanned the codes with my OBD2 scan tool I had in the car and got a lot of codes such as Turbo overboost, no signal to O2 sensors, so I immediately thought it was the JB4 since the wires tap into the O2 sensors. So I disconnected the JB4 and car ran fine. I’m thinking the JB4 failed and the cars ECU detected higher than normal boost pressures and went into limp mode. I also had the car die on me multiple times when trying to back out of a parking lot one time as well. The car would idle for about 10 seconds and then die, again I disconnected the JB4 and car ran fine. I’m suspecting maybe an intermittent faulty JB4 unit however I can’t say for sure.

Mines done this before cut off in the middle of the road, but I ordered the replacement master chip 2580 from jb4 I think it 25 dollars updated it and haven't a problem since

 

[xRagee23]

Mines done this before cut off in the middle of the road, but I ordered the replacement master chip 2580 from jb4 I think it 25 dollars updated it and haven't a problem since

Just ordered the replacement chip hopefully this fixes the problem. Thanks for the help!