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misfire under 1500rpm

Foster5991

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I have a manual series 1 v6 vt, new plugs, new leads, new msd coil packs, there is a misfire on idle, once I go above about 1500rpm the misfire stops until I drop back to idle, any idea what could cause it to misfire at low revs but not any higher? Cheers
 

hotrod

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did you change your dfi , idle control valve working , is your injector blocked.
 

Foster5991

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It's not the egr, I had it unplugged and replaced to fix an idling issue, also had tps and iac replaced
Would a blocked injector cause it to only misfire at low revs? Cheers
 
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