Join Date: Jul 2015
Location: slower lower Delaware,second home on lake Conesus in NY. keep a 93&94 vxr pro there.
Rods, I was thinking about that D plate chip the other day when I posted.
With the D Plate you DON'T use the cat sensor. D plates comes with a chip that plugs into the wire connection, that fakes the cat to the computer.
Find the harness wire that should go to the cat sensor. If this chip is missing and they connected the wire to the cat sensor and eliminated the chip, there's your problem. If this is the case contact the mechanic and request chip back. It is required for the D plate to fool the computer.
If they can't locate or don't have the chip there are ways around it to make one. The proper chip is preferred though.
In my opinion,
If they (shop mechanic) took your chip out and installed a cat sensor with D plate they owe you a chip and charged you for a sensor and parts you didn't need.
Even if it means they have to by a new D plate to get the chip at there expense. That's there problem. Just my $.02
The chip plugs into the wire and is taped up to secure chip and wire.