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misfire on all cylinders

3K views 2 replies 3 participants last post by  GSMNZ 
#1 ·
Hi guys I have a misfire on my 2002 wrx changed spark plugs gapped correct coil packs, grounds are good,camshaft sensor replaced, crankshaft sensor replaced, tbps replaced, I dont know but my short term fuel trim is 18-22 and lt ftrm is 0 what could be causing.the misfires any ideas
 
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