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Message: <blockquote data-quote="95marcos" data-source="post: 555856"><p>like the title states this question is for those of you that are familiar with how the eec-iv computers in our cars work. here is my situation, when i bought my car the temp gauge wasn't working so i went ahead and changed my temp sensor on my car. that didnt work so i changed the gauge cluster, nothing. so finally i decided to just put in an aftermarket gauge in. when i put the gauge in i left the factory sensor unplugged. now would this affect the computer coming in and out of closed and open loop (the computer not knowing the engines temperature)? if you would this explain why my car doesnt run consistant? somedays it runs great others it feels like a slug. my mods are listed in my signature.</p></blockquote><p></p>