can someone please help

4.6rx7

New Member
May 11, 2006
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i have put a 4.6 in my mazda rx7 the coils fire. but it wont start if i run gas through the throttle body it will run. any ideas why the injectors wont pulse? i need any help
 
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im also using the crown vic ecu and the pump puts out 80 psi i had the fuel rail looped to one line could it be because the presure was so hi instead of 40 psi