Code was checked and reset and never came back on after a few hours drive. Car tends to "bog down" slightly when accelerating harder such as getting on the highway and thats about it.....shifts normally etc.

Ya and car was not running when rustproofing was being done but I recall oil mist flying everywhere in the shop and they did spray in the engine bay areas...the intake on the other side where the air goes in is oily but I will take a better look tommorow.

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99 C43
98 S420
99 C230K
01 C240