Overboost and falls off
#1
Overboost and falls off
i bought a 2008 HHR SS in November 2018. i was experiencing some issues with the boost. i understand that the stock boost should be under 15 psi. there were times i would see it over this and then i would lose all boost. i decided to to the Turbo MAP sensor upgrade from ZZP with a HP Tuner tune to see if it would solve this issue and it didn't. Now I'm seeing boost over 25 psi with a P0234 code that's over boosting. now from what i read it could be the wastegate or the bypass valve. I'm leaning more to the wastegate. is there a direct replacement? or for those who replaced where did you find it ? i am having no luck in finding a wastegate.
Thanks in advance
Thanks in advance
#2
Our own RJ had this code awhile back
https://www.chevyhhr.net/forums/ss-s...olenoid-55793/
Welcome to the site
https://www.chevyhhr.net/forums/ss-s...olenoid-55793/
Welcome to the site
#5
https://www.rpm-motorsports.com/stor...-actuator.html
https://www.ebay.com/itm/GM-Boost-Wa...Model%3ACobalt
I thought I had found more.... will keep looking
https://www.ebay.com/itm/GM-Boost-Wa...Model%3ACobalt
I thought I had found more.... will keep looking
#6
https://www.rpm-motorsports.com/stor...-actuator.html
https://www.ebay.com/itm/GM-Boost-Wa...Model%3ACobalt
I thought I had found more.... will keep looking
https://www.ebay.com/itm/GM-Boost-Wa...Model%3ACobalt
I thought I had found more.... will keep looking
#7
Our own RJ had this code awhile back
https://www.chevyhhr.net/forums/ss-s...olenoid-55793/
Welcome to the site
https://www.chevyhhr.net/forums/ss-s...olenoid-55793/
Welcome to the site
Thank you. ill do some reading on this.
#9
thats the one thats next to the turbo right ?