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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford Raptor Engine Discussion and Performance Mods
Loss of power, under heavy accelerating
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<blockquote data-quote="Donovan" data-source="post: 1396507" data-attributes="member: 35862"><p>Hey folks..</p><p></p><p>SPD downpipes, CFV FMI, BOV, COBB stage 2.</p><p></p><p>Not sure if anyone else has experieneced this. Under heavy load, when I really push the vehicle up to 5/6k RPM, I get a check engine light that flashes and the vehicle shakes a bunch. This did not happen before the mods or tune. I'm running the latest firmware of COBB. I do have spark plugs to change, because I did have a misfire code that I read after the firsts occurance. While at idle, I frequently get a rough engine shake but the check engine light only flashes if I push the truck and when it does flash its like I have half of the engine power (limp mode) and I have to let it naturally slow down by itself to about 45/50 then the engine light stops flashing and I regain full power.</p><p></p><p>Thoughts?</p><p></p><p>1. I may take the tune off and try it out</p><p>2. I may take the tune off and take it to ford</p><p>3. Regardless of the two above, I'm not taking off the FMIC/SPD downpipes</p></blockquote><p></p>
[QUOTE="Donovan, post: 1396507, member: 35862"] Hey folks.. SPD downpipes, CFV FMI, BOV, COBB stage 2. Not sure if anyone else has experieneced this. Under heavy load, when I really push the vehicle up to 5/6k RPM, I get a check engine light that flashes and the vehicle shakes a bunch. This did not happen before the mods or tune. I'm running the latest firmware of COBB. I do have spark plugs to change, because I did have a misfire code that I read after the firsts occurance. While at idle, I frequently get a rough engine shake but the check engine light only flashes if I push the truck and when it does flash its like I have half of the engine power (limp mode) and I have to let it naturally slow down by itself to about 45/50 then the engine light stops flashing and I regain full power. Thoughts? 1. I may take the tune off and try it out 2. I may take the tune off and take it to ford 3. Regardless of the two above, I'm not taking off the FMIC/SPD downpipes [/QUOTE]
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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford Raptor Engine Discussion and Performance Mods
Loss of power, under heavy accelerating
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