Hi guys, I have a 2006 WRX and the car decided not to boost anymore .
Driving normally one minute spooling fine, next second there's no boost.
I've replaced the following bits and didn't fix the issue.
Installed stock BPV
Car isn't showing any CEL's, I did a fault code scan and showed 0 engine codes only 'Front ABS Sensor'
I did some data logging and the max boost I was hitting was 4.9 PSI.
Car hesitates a just before hitting boost.
Also the car does make a chain like noise at low rpms, when starting off or at low rpms. (Has been happening for a while, still boosted fine)
I should also note, the car was boosting before I changed the tmic and stock bpv. About a week later it started to not boost, however the weird thing is the GFB BOV works when the car is idle and revved out (it's quite loud) but when driving it doesn't work.
Any help would be greatly appreciated.
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