I have a 2000 model with greddy style turbo kit, viper alarm and AeM ems V2. After tuning the car the speedo doesn't display any speed, only shows 0 and eps light is on and eps does not work. All parameters have been checked as far as the vss cal, vss signal etc. however the speed graph works/shows correct speed in the software. speedo and eps work with factory ecu. Car has 28,000 miles.
Person I got the ecu from said he had an aftermarket trans, 750whp car, and the tuner might have disabled the speedo somewhere. Advice/ suggestions? Aem's reply was " to try the ems on another car "