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Mach 1
Idle issue
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<blockquote data-quote="Nightmare90gt" data-source="post: 16710734" data-attributes="member: 150374"><p>I'm in need of help I have been troubleshooting this idle issue for a long time. My rpms like to stay around 1200. I have got forescan lite. </p><p></p><p>I have replaced the following</p><p>All vaccume line </p><p>Tps-voltage per forescan is .92 </p><p>IAC-03/04 OEM one (planning supercharger swap soon) </p><p>Intake manifold gaskets </p><p>02 sensors (fronts only rears are off)</p><p>Air filter </p><p>Plugs and coils</p><p>One thing I have noticed on forescan at idle my fuel pump duty cycle goes from 80-114% constantly.</p><p>The car has 170k mile every sensor besides the following have been replaced.</p><p>Maf </p><p>Fuel injectors </p><p>Ccrm </p><p>Fpdm </p><p>Fps </p><p>Cam position sensor </p><p>Crank position sensor </p><p>Alternator</p><p>My tuner broke so I don't know if I can put another tune on it if I buy a new tuner.</p><p></p><p>Any help is appreciated</p></blockquote><p></p>
[QUOTE="Nightmare90gt, post: 16710734, member: 150374"] I'm in need of help I have been troubleshooting this idle issue for a long time. My rpms like to stay around 1200. I have got forescan lite. I have replaced the following All vaccume line Tps-voltage per forescan is .92 IAC-03/04 OEM one (planning supercharger swap soon) Intake manifold gaskets 02 sensors (fronts only rears are off) Air filter Plugs and coils One thing I have noticed on forescan at idle my fuel pump duty cycle goes from 80-114% constantly. The car has 170k mile every sensor besides the following have been replaced. Maf Fuel injectors Ccrm Fpdm Fps Cam position sensor Crank position sensor Alternator My tuner broke so I don't know if I can put another tune on it if I buy a new tuner. Any help is appreciated [/QUOTE]
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