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Thump and knock
My friends 99 986 base has the codes p1128 and p1130. It seems to idle okay but under throttle, the power cuts in and out (we actually stalled driving) and there is this thud coming from I believe the left side. It starts fine every time. He described as thumping and choking? Car has just under 100k on it.
Any thoughts on easy first steps?
Thank you.
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