engine stumbles when building boost September 20, 2013, 03:49:52 PM I met jcassity yesterday and he referred me to this forum I have a 1988 turbo coupe that I have converted to 5 SPD car ran good then it started stumbling when it starts to build boost right around 3000 rpms need help Quote Selected
engine stumbles when building boost Reply #1 – September 20, 2013, 05:52:43 PM Could be blowing spark out but need more details Quote Selected
engine stumbles when building boost Reply #2 – September 20, 2013, 06:58:58 PM Well car ran good with the auto n it then trans went out put 5pd n ran good but couldnt put foot n it runs good out of boost just cleaned egr and put LB computer back n it its getting worse don't no wat u mean by blowing spark out this is my 1st turbo car Quote Selected
engine stumbles when building boost Reply #3 – September 21, 2013, 02:14:34 PM When my XR-7 (2.3t) did that it was a burned spark plug wire that would only arc at high RPMs. It idled fine, but would stumble when boosting. Threw on a new set of wires and it was fine. Quote Selected
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