ok i got the tsp 231/237 . my car was tuned for my set up and cam but after about 500 miles my idle has started to surge . i also have to different brands of o2. could that be the reason its surging. my idle was set at 1200 but it always stayed at 1000 on nuetral and 900 in gear. any advice guys.

 

yah take it back to your tuner naw im not sure man though ive only had about 200 miles on mine it idles strong at 900-950 in gear so far so im not sure what to tell ya.

 

Yeah that idle is a little high. I'd say 900 in gear should be max. My 228r has been surging a little lately since my tuner did his last update. Just haven't had time to get back over to him.

 

VE tables lowered in the 800/1000/1200 will fix it and let the tuner run a 950 idle