E36 325i problem with keeping the speed at one level.

Hi I have an e36 325i with the following things done to it: ACschnitzer cams, big throttle body, chip. headers & full exhaust, 4.10
diff. Say Im trying to do the speed limit of 60kmh. The car will speed up to 60 great and also gear down great but it has a problem staying at one speed. It either wants to speed up or gear down. So the car gets these hick-ups when I try to keep it at one speed. Now this is not a problem when the engine is still cold, but as soon as it worms up the problem is there. I was thinking maybe oxhygen sensor? Car needs dyno remaping? some other sensor? 4.10 diff ratio is too high?? Help.
-- Message posted using http://www.talkaboutautos.com/group/alt.autos.bmw / More information at http://www.talkaboutautos.com/faq.html
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file

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.