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2nd Generation
Fuel pressure jumping under load... help please
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<blockquote data-quote="'88347coupe" data-source="post: 8527062" data-attributes="member: 50866"><p>My truck did the exact same thing. I ended up having to wire in a second dropping resistor in parallel. Took me a month to figure it out because, I to put a new dropping resistor in,and it didn't fix my problem. Cheak your voltage at your inertia switch relay (the one beside the hi/lo relay). You should have 8-9volts at idle and cruising. When the resistor is bypassed you should have battery voltage (13- 13.8v) at said relay. Your hi/lo relay just alternates between a direct chasis ground and an alternate ground going through the resistor. This is done by a ground wire coming from the computer that triggers that relay. Hope this helps:beer:</p></blockquote><p></p>
[QUOTE="'88347coupe, post: 8527062, member: 50866"] My truck did the exact same thing. I ended up having to wire in a second dropping resistor in parallel. Took me a month to figure it out because, I to put a new dropping resistor in,and it didn't fix my problem. Cheak your voltage at your inertia switch relay (the one beside the hi/lo relay). You should have 8-9volts at idle and cruising. When the resistor is bypassed you should have battery voltage (13- 13.8v) at said relay. Your hi/lo relay just alternates between a direct chasis ground and an alternate ground going through the resistor. This is done by a ground wire coming from the computer that triggers that relay. Hope this helps:beer: [/QUOTE]
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Fuel pressure jumping under load... help please
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