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Well i have a 1994 cobra with tfs heads and cam and all the bolt ons,i have new fuel pump ,injectors,filter,rotor,cap,wires,and have new sensors other than the tps or iac ,in the mornings i have to give it gas to keep idle and when i drive off it has a sputter to her ,then as she warms up shes good ,i also did the o2 sensors,i have auto lights 3923s because of a 150 shot gapped at 35 any ideas :confused:
 

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The ECT and the ACT are very important sensors during the cold startup. Together, they act as a "choke" for the motor. They're each around $15 at autozone/advance autoparts. Many people including myself have even gained power by replacing those sensors. And no, they won't throw a code if they're misreading a little.
 
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