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Okay want to pick your brains.... I have an idling problem usually idling at 1500 rpms sometimes as high as 3 grand. I do all my work myself with hubby. So taking it to shop isn't usually an option. So we have changed IAC and TPS still throwing an iac code 505 I believe. We unplugged computer and checked for loose connections inside. Plugged it back in idling better but still surges and drops. Sometimes idles so low can't get it started without hitting throttle. We think maybe changing pigtail connector for iac. And possibly getting another battery. Any suggestions on how to fix this
 
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