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Discussion Starter · #1 ·
My 17 Abarth if I jump on it will go into limp mode it has thrown a P0234 code but mostly it doesn’t my car has some mods, FMIC, GFB valve withspacer for the woosh, and if I’m going up a hill passing someone it can and has just go into limp mode my. And yellow spring in the actulator
 

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You may want to check the waste gate solenoid, I think that's generally a good place to start.
 

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You said you replaced the solenoid, did you replace the wastegate? You can bench test the wastegate itself, if you take it off, you can blow a compressed air at low pressure (usually something like 8-10 psi) and confirm the operation.
 

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Discussion Starter · #7 ·
Thank you I’ll try it on my days off it’s weird I was going 75 mph on the freeway then I got on it easy went to about 80 boost was just over 12 pounds on the stock gage and went right into limp mode
 
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