robocrab Posted January 27, 2017 Share Posted January 27, 2017 hallo anny idea aboyt the knock, I change fuel filter, sparkplugs. Quote Link to comment Share on other sites More sharing options...
Mattb Posted January 28, 2017 Share Posted January 28, 2017 It's not from the exhaust is it? Sounds like back fire on the video. Has it got the correct HT leads on it? High modifications sometimes means you need to upgrade them. Quote Link to comment Share on other sites More sharing options...
Scoobyghost Posted January 28, 2017 Share Posted January 28, 2017 Could be the exhaust knocking in the tunnel. Hold the tail pipe and give it a good old shake side to side. See if you can replicate the knock. If you have access to ramps it will be easier to see. Quote Link to comment Share on other sites More sharing options...
robocrab Posted January 28, 2017 Author Share Posted January 28, 2017 pfr7b ngk spark plugs, and it´s not tunede. only 3" downpipe with no cat. and the backbox (prodrive ) Quote Link to comment Share on other sites More sharing options...
Mattb Posted January 28, 2017 Share Posted January 28, 2017 id try and see if it's a misfire. Seems to be two pops with every gear. Quote Link to comment Share on other sites More sharing options...
Scoobyghost Posted January 28, 2017 Share Posted January 28, 2017 Not tuned but a decat downpipe? And rest of the exhaust. That's tuned. No cat in the downpipe could cause you issues in future if you don't have it mapped. Could get overboost and fuel cut. Quote Link to comment Share on other sites More sharing options...
stants Posted January 28, 2017 Share Posted January 28, 2017 Have you run a diagnostic check at all ? Could be running round changing parts for no reason Sent from my SM-G930F using Tapatalk Quote Link to comment Share on other sites More sharing options...
robocrab Posted January 28, 2017 Author Share Posted January 28, 2017 i have a obs2 diagnostic tool, but i don´t work on my car??? is it only obd1??? what i´m meen it´s not overboosting only stock 0,9 bar i the future i´m look at this exhaust: http://www.ebay.co.uk/itm/SC31a-Cobra-Subaru-Impreza-WRX-STI-93-00-Track-Turbo-Back-Exhaust-Sports-Cat-/282285580767?hash=item41b98821df:g:HcMAAOSwlV9WRH8k Quote Link to comment Share on other sites More sharing options...
stants Posted January 29, 2017 Share Posted January 29, 2017 You need to look under the steering column there's two small black connectors underneath, clip them together turn ignition to 2nd position and see if the check engine light 'blinks' out a code, If no codes stored it will just flash constantly, of there's one stored it will Flash intermittently Sent from my SM-G930F using Tapatalk Quote Link to comment Share on other sites More sharing options...
robocrab Posted January 29, 2017 Author Share Posted January 29, 2017 thanks, no codes stored. Quote Link to comment Share on other sites More sharing options...
Piggysniffer Posted February 14, 2017 Share Posted February 14, 2017 Have you got a vent to air dump valve Quote Link to comment Share on other sites More sharing options...
Piggysniffer Posted February 14, 2017 Share Posted February 14, 2017 Forget that, just watched vid and didn't hear one 😳 Quote Link to comment Share on other sites More sharing options...
robocrab Posted February 16, 2017 Author Share Posted February 16, 2017 that I usually have, but changed it to a normal. ( forge ) Quote Link to comment Share on other sites More sharing options...
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