Customer complaint is ever since the (maggie, cam, long tubes and E40 2bar tune) was done the speedometer quits working when you spin the tires from a stop. If you turn off traction control, the tires spin, (alot) speedo quits, brake light and tcs lights come on. Speedometer comes back on as soon as you lift from throttle. With TCS on, I have power pulled back far enough tires dont spin much but speedo also quits until you lift. No Brake or TCS light when this happens.
Any ideas guys? Im running out of options. THanks

2005 SSR
6.0
Cam
Long tubes
Maggie Supercharger
Precision converter