I just recently installed my F-max stage 2 kit, JWT 4 bar ecu programed for use with C1 cams. The car idles at a steady 900rpm for a minute then starts to surge at about 700-1200. Any ideas anyone?:confused:

mine would idle fine, the surge, then idle fine. i think it was a vacuum leak, or the tps. hope it helps.

Brian

I actually just had the same problem...I didnt connect some hoses which I think was a vaccum leak...MY car went to 500 to 1100 rpms.. So basically you should see if all your hoses are connectted and there is no kinks in any of the lines.. I fixed it today and the idle is better...When I stop it still drops to 600 but goes right back to 1000 rpms and has no surges yet... Hope that helps..

well my car does this also but it goes up and down from 1000 to 1500 .I have check all my lines and well most every thing else?