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Message: <blockquote data-quote="fatality69" data-source="post: 4266142" data-attributes="member: 71055">Your replies.... yes and no. Yes - If TS's campro is IAFM version, then yes... it is indeed the IAFM problem. No - common la...its totally not like vtec at all. not even close! . hehehe... i wish :P. It's basically an integrated intake manifold incorporating two intake runners of different lengths operated by vacuum solenoids / valves. Long runner length intake will be used for low rpm range (till 3.5k / 4.8k rpm if not mistaken) before it switches automatically to short runners. Reasons are to fine tune the air fuel mixture and etc to "solve" the torque dip that naturally comes with all Campro engines except cps versions. CPS campros also have this "IAFM" version of theirs but its more advanced and is completely controlled by the ECU. Operating range for the short and long runners are different. TS - I had mine (IAFM) replaced at 4k KM. It was manufacturing defects whereby the internal valve needle had some clearance issues causing it to come into contact with part of the module. Some SC actually took it apart and "mod" it a bit and it works just as good. But some just claim new set for the owner. Mine was changed completely. I was advised before hand though that eventhough its the improved version... If listened and observed very closely (ears near the IAFM)... it still does emit a very SLIGHT noise which they admit is normal and not a problem like before anymore. It's been over 10k KM with the warranty replaced IAFM and there was no problems ever since.</blockquote>

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