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Message: <blockquote data-quote="mrspeedy69" data-source="post: 390731" data-attributes="member: 9175">Ok i posted this in the general tech but not too many ppl responded so i thought i'd try here.About a week ago i decided to run seafoam and clean my throttle body with seafoams deep creap. After i ran it through i decided to change the plugs and the feul filter. I replaced everything and started the car and it seemed to run fine. Well later that night i noticed that when i got on the car it just fell on it's face like it wasn't getting spark or feul.I noticed that it only does this when i'm past about half throttle, if i'm not into it the car runs up fine but as soon as i go over half throttle it just stops pulling. I put the old plugs back in thinking that was the problem but no. I replaced my IAC, cleaned the MAF and throttle body again. Put new plug wires on and still the same problem.The car threw a code once that was P1516 which is and IMRC input error on bank 1. After i replaced/cleaned the things i mentioned the car seems to run/pull harder until i get up in the higher rpm's. I can feel the IMRC's kicking in and it feels like they kick in alot harder. I have a new TPS to put on just haven't cause the screw is stripped and havent' had time to get it out.Sorry for the long post but i'm a little lost on where to go from here. The car is a 98 cobra with almost 108,xxx on it and is completely stock. Thanks for the help guys.</blockquote>