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General Discussion
tbi fuel pressure too high??
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<blockquote data-quote="bgredjeep" data-source="post: 415601" data-attributes="member: 2797"><p>As long as you've got the return line hooked up it shouldn't be an over pressure issue. Honestly, it sounds just like what my 4.2 did when I installed a "stock" tune chip from Howell in my Jeep. I bought my efi second hand and it was tuned for a motor with a cam and headers that I didn't have. Their stock tune ran like total crap, loaded up, would flood horribly when cranking if I shut it off and let it sit for about 5 mins then tried to restart. </p><p></p><p>Best bet to get a good tune from Howell is to use a wideband o2 to map what it's doing now so they know what adjustments to try. They might be able to make a guess based on your motor setup. Also, have you checked for trouble codes yet?</p></blockquote><p></p>
[QUOTE="bgredjeep, post: 415601, member: 2797"] As long as you've got the return line hooked up it shouldn't be an over pressure issue. Honestly, it sounds just like what my 4.2 did when I installed a "stock" tune chip from Howell in my Jeep. I bought my efi second hand and it was tuned for a motor with a cam and headers that I didn't have. Their stock tune ran like total crap, loaded up, would flood horribly when cranking if I shut it off and let it sit for about 5 mins then tried to restart. Best bet to get a good tune from Howell is to use a wideband o2 to map what it's doing now so they know what adjustments to try. They might be able to make a guess based on your motor setup. Also, have you checked for trouble codes yet? [/QUOTE]
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tbi fuel pressure too high??
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