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88 f150 check engine light question

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Old Jun 6, 2005 | 02:32 PM
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From: buford Ga
Arrow 88 f150 check engine light question

just recently my check engine light has been comming on. It only lights when I floor it, which I have to do to get to speed on the interstate or trying to pass someone. it comes on when it is at high rpm's, but not in park or neutral. sometimes it is flashing & some times it is on steady until let off a little on the gas. Sometimes it doesn't ever come on. It is a 1988 F150 4X4 single cab long bed lariat LS, w/ rebuilt ford 302 ci 5.0L V8 engine. If anyone has tips, advise, or answers, please reply
 
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Old Jun 6, 2005 | 04:31 PM
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Old Jun 6, 2005 | 05:25 PM
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Pull the codes to see what the computer is trying to tell you. There are instructions online at http://fordfuelinjection.com
 
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Old Jun 7, 2005 | 08:55 AM
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Check your fuel pressure. Needing to floor it to pass, CEL coming on only at near full throttle, etc suggest inadequate fuel delivery. But by all means, pull the codes...
 
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