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Ford Raptor Forums - General Information
Ford Raptor Problems and Questions Forum
Code PO300
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<blockquote data-quote="thegrays" data-source="post: 1852330" data-attributes="member: 53664"><p>So start from the beginning, sent truck into dealership for new cv boots the technician tapped into the ecu seeing that I have tuned the vehicle. Following that they revoked the vehicles extended warranty. I did not know if they tampered with the ecu so I reinstalled the tune. About 2 hours later was doing a highway pull on 93economy 5 star tune then right after the shift from 3rd-4th WOT the cel began to flash and I read my monitor and it read PO300 random/multiple engine misfires bank 1. </p><p>I’ve done countless pulls on this tune with no issues but this time right after I picked it up from dealership it threw that code at me. The engine runs great I don’t recognize any abnormal noises than before. It still starts up first crank doesn’t sputter at idle and even during the wot pull it didn’t feel like I experienced a power loss nor did it make any foreign noise. Need some help if this code is false alarm or a real threat. The only engine issue I am and have been experiencing far before the CEL came on was an intermittent idle shake, assuming that it is in fact coming from the engine.</p><p>Here are my current mods </p><p>S&B CAI </p><p>stainless works LTH 1-7/8 with high flow catted mid pipes ( I have a slight leak right before the cat, on the clamp, on the right cylinder bank) </p><p>Corsa extreme catback </p><p>5 star tunes</p></blockquote><p></p>
[QUOTE="thegrays, post: 1852330, member: 53664"] So start from the beginning, sent truck into dealership for new cv boots the technician tapped into the ecu seeing that I have tuned the vehicle. Following that they revoked the vehicles extended warranty. I did not know if they tampered with the ecu so I reinstalled the tune. About 2 hours later was doing a highway pull on 93economy 5 star tune then right after the shift from 3rd-4th WOT the cel began to flash and I read my monitor and it read PO300 random/multiple engine misfires bank 1. I’ve done countless pulls on this tune with no issues but this time right after I picked it up from dealership it threw that code at me. The engine runs great I don’t recognize any abnormal noises than before. It still starts up first crank doesn’t sputter at idle and even during the wot pull it didn’t feel like I experienced a power loss nor did it make any foreign noise. Need some help if this code is false alarm or a real threat. The only engine issue I am and have been experiencing far before the CEL came on was an intermittent idle shake, assuming that it is in fact coming from the engine. Here are my current mods S&B CAI stainless works LTH 1-7/8 with high flow catted mid pipes ( I have a slight leak right before the cat, on the clamp, on the right cylinder bank) Corsa extreme catback 5 star tunes [/QUOTE]
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