Wolfy Posted March 14, 2017 Share Posted March 14, 2017 When hitting 4000rpm in second I occasionally lose boost for a split second.. sometimes happens in first. It's completely random and doesn't always happen. Fuel cut or boost leak maybe? Or mapping issue? Quote Link to comment Share on other sites More sharing options...
kayzarh Posted March 15, 2017 Share Posted March 15, 2017 is this all during full throttle? does the boost come back on after 4000rpm? do you have a boost gauge? Quote Link to comment Share on other sites More sharing options...
Wolfy Posted March 15, 2017 Author Share Posted March 15, 2017 Under full throttle, it goes for split second then I have boost again. Yeah, I do Quote Link to comment Share on other sites More sharing options...
Wolfy Posted July 15, 2017 Author Share Posted July 15, 2017 Just in case anyone comes across this, it turned out to be the lamber sensor. I was quoted £350, so I recommend you do it yourself as it's like a half hour job, if that if you're more knowledgeable with cars. If I remember correctly, I paid £120 then like £15 for the tool. Drove around the block, the car ran smoother, idled lower and pulled much better. I am, however, having issues with launching the car. It's not top of my list to sort since I rarely do it, but I will update this when I know the issue Quote Link to comment Share on other sites More sharing options...
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