BlackBrick Posted October 21, 2019 Report Share Posted October 21, 2019 97 Volvo GLT I replaced air intake from MAF to turbo with the Snabb aluminum tube, replaced the OEM air cleaner with an open air intake, and replaced the MAF from another working 850. I forgot to take notes on how I hooked up TCV vacuum lines. When I hook up TCV the way I think it's supposed to be (yellow dot to wastegate, red dot to turbo compressor). I get overboost and code p0243. When I hook up opposite (yellow dot to compressor, red dot to wastegate) I don't get the code, but I get almost no power and a terrible flutter. I also relocated TCV over by ignition coil, so the vacuum lines are much longer. Car otherwise runs fine, and ran fine before all these changes. ??? Link to comment Share on other sites More sharing options...
BlackBrick Posted October 23, 2019 Author Report Share Posted October 23, 2019 Problem solved. User error. The vacuum hose to the compressor had slid off. That one is very difficult to get on properly! Link to comment Share on other sites More sharing options...
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