Check Engine Light Help
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Check Engine Light Help
Hi, first time post. I have a 91, F250 with 4.9L I6, 121K miles. I'm having an issue with loss of power and surging under load. There's a check engine light on but every attempt I've made to retrieve the codes is coming up - no codes. Ive tried jumpering the STI to ground and using an Inova code reader, both without any success. Any ideas how to troubleshoot this to pull the codes? Thanks.
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Shawn1021
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BearFootCustom
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