mrl0n3ly714

recently after the ECU tune from Eurocharge...i got into CEL ESL malfunction and the car went into limp mode..



Eurocharged (jerry) aware of schrick cams and headers.

I did alot of research on google and mbforum and alot of ppl got into limp mode usually after Powerchip tunes or Eurocharged..I have checked:

1) Take it to dealer to check AC not blowing cold air and first time ESP malfunction and limp mode..dealer return with no problem on any sensors (so we might eliminated on bad sensors that cause this) Also dealer indicated ESP mal cause by vibration of custom engine control unit..(no idea of what is this measn). Service Advisor, also told me i need to replace new SAM unit and it will fix AC problem and ECU..(they did short test with new SAM unit and all codes return ok with checked mark on the list). ESP

2) Some member have fix this issue (at first, they thought it was bad coded ECU, and they let dealder reflash and updated ECU new firmware and the issue still came back, and later on they found it was FAULTY ACCELERATOR PEDAL, and they replaced that and never had ESP mal and limp mode again..

3) I replaced the SAM and AC blows cold air but ESP mal on again tonight after half day of the replacement, and went into limp mode with in just 2mins of starting the car (so it was not frayed ECU or something, ECU still cold) ...Im affraid to go on freeway now and if suddenly the car go into limp mode again and my life will be on the edge...

So what do you guys think might have cause this ESP mal and goes into limp mode ?

***Just ESP MAL, notthing else. If one of sensors was bad then at first time checking at STAR, it should point out what cause this right ? So im not worry about the sensors then..But what about bad codes on ECU ?
Service Advisor said it was bad vibration on ECU...but he also said if replace new SAM it will fix...
He also aware of Custom ECU too, (i told him not to flash or touch ECU because it got tune)

Is it because i removed the foglights and have cause the voltages issue and cause the ESP mal and go under limp mode ? Right now i have DRL wires to marker lamps , and no foglights. Maybe, because cams and headers ? (pretty sure cams timing is right). Or maybe because Collapsed engine mounting ? I got that message from dealer need to fix it but i declined now because i want to focus on ESP mal problem.

I just dont want to spend more money to let them diag more and fix on the problems and it still coming back..They did it once on me..

So Jerry suggest to ship ECU back to reflash to stock..So should i do that or let the dealer check again see what is really cause this issue..or maybe just replace the bad accelerator sensor...

Im so frustrated ... i should had just sell the car and get 911 TT back then when i got a chance...

milesy_boy

My ESP BAS does not come on, had it before and it was the tracking alignment out, classic sign is when the steering wheel slopes down a bit when driving in a straight line....once the tracking was aligned the ESP and BAS were fine!!

Might want to get the tracking done to eliminate it from the equation??