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Discussion Starter · #1 ·
Hey everyone,
I just recently rebuilt a 2019 terrain with the 1.5L engine in it and on my first test drive I got a P0234 code for overboost. The car only has 8k miles and has been sitting for probably close to 6 months so im thinking the waste gate may be stuck or something is just sticky. This is my first time ever dealing with a turbo so my knowledge on them is very slim. If anyone has came across this code before please let me know what you did to fix it. All other advice or opinions would also be appreciated. Thanks
 
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