91 LUMINA 3.1 high rev cut-out

changed coil pack still cuts out then back, like bang, bang, bang at high throttle..... any ideas anyone? Starts, idles and up to about 4000 rpm fine...

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

if your talking about static rpm's (in park with brick on pedal) then its not suppose to over rev. pcm wont allow it.........
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.