EEC-V & Theft Mode

[kg2hk]

I had this unpleasant and embarrasing experience on Saturday and I was curious if anyone with a 99/00 GT has experienced this.

I changed my gears to 3.73 and user a SHMS speedo recalibration unit. Prior to this day I had ALWAYS turned off the traction control prior to driving. I drove the car on the highway for appox. 15 miles at 65-70 MPH when all of a sudden all dash gauges jumped to maximum and them minimum readings 2 times about a minute apart, then the theft light came on, and then the car shut down. I was able to reset the EEC-V from theft mode with roadside ass't help. I continued on my journey without the traction control and the same thing happened again about 15-20 Miles later.

I dumped the battery and let the car sit for an hour. I was able to drive the car with the traction control off for 60 mile journey home without a single problem.

Anyone know if there is some kind of bug with taction control and modified axle ratios? Any way to defeat it? Could anything else cause this problem?

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99 Laser Red GT
Mods: 70mm TB, Level 10 Chip, FMS 3.73's, Sean Hyland Speedo Recalibration kit, Pro 5.0 Shifter, & Pro-M 77mm MAF.
DynoJet: 242HP/286 Lb/ft
Best 1/4: 13.839@99.1MPH on radials.