Jwilsonpwt
New member
Hi everyone,
I've got a 96 formula w/ the LT1 and manual trans. The car runs great and retains all the factory emissions equipment. Getting on the highway the other day the check engine light came on. I had it checked at a local parts store and code #P0403 for the EGR circuit came up. From the time the light came on until it went off again was about 20 miles. I drove the car the next day and after about 20 miles or so it came on again. This time I had the parts store clear the code and to this point it hasn't come back on. Any ideas what this may be? Like I said, the car runs excellent and idle seems to be just fine as well. Any help would be appreciated.
Thanks,
Jeff
I've got a 96 formula w/ the LT1 and manual trans. The car runs great and retains all the factory emissions equipment. Getting on the highway the other day the check engine light came on. I had it checked at a local parts store and code #P0403 for the EGR circuit came up. From the time the light came on until it went off again was about 20 miles. I drove the car the next day and after about 20 miles or so it came on again. This time I had the parts store clear the code and to this point it hasn't come back on. Any ideas what this may be? Like I said, the car runs excellent and idle seems to be just fine as well. Any help would be appreciated.
Thanks,
Jeff