# B18C Build Troubleshooting **URL:** \ **Category:** PittSpeed Automotive\ **Created:** [April 9, 2008, 5:37am UTC](https://forums.speedlife.net/t/b18c-build-troubleshooting/196698 "2008-04-09T05:37:33Z")\ **Posts on this page:** 1\ **Showing post:** 60
**Author:** ![dyingwish](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/dyingwish/32/6041_2.png) [@dyingwish](https://forums.speedlife.net/u/dyingwish)\ **Post date:** [April 15, 2008, 6:20am UTC](https://forums.speedlife.net/t/b18c-build-troubleshooting/196698/60 "2008-04-15T06:20:31Z")
> [@07 vette not tunned by new era](https://forums.speedlife.net/t/07-vette-not-tunned-by-new-era/35948/10): > > Well its good that you’ve grounded it well. > > I’m not saying that you didnt do it right, its just that i’ve built ITB’s out of honda RR’s with great sucess. The tps and map plug in and your done. no calibrating, no mysteries… plus the 954rr’s are 42mm at the plate as well. Well, first off you used a Honda TPS with CBR ITB’s…I’m using a Suzuki so it must be calibrated no matter what. Secondly the signal voltage is NOT STABLE like it would be with the stock (or a good) TPS, indicating that it is probably shot. That alone will throw things way off. I have read many times that the CBR TPS is plug and play, and that you supposedly cannot use the Suzuki one…although that assumption was made when someone threw it on and did not adjust/calibrate the TPS. You may be right about the MAP sensor, but I have no idea how you mounted yours…both in relation to the throttles and to the vac system as a whole. Mine may be seeing too much vacuum. --- _[View the full topic](https://forums.speedlife.net/t/b18c-build-troubleshooting/196698)._