Lots of threads on the forums about this but never really saw a fix or conclusion to each persons problem. My car has a erractic idle, when I give it gas it goes away and runs great. I have changed spark plugs with Mercedes plugs, tried a new Mercedes MAF and put new seals at the bottom of MAF and new seal at the elbow piece that mounts to throttle body. Still have idle issue, hooked up to STAR no faults in any system. What is going on, looked it over very good for vac leaks and nothing. Anyone that has had this same issue and found a cure please let me know. I have ran two bottles of injector cleaner thru it and strictly run 93 oct.