I was hoping someon could help me with my questiion, I have found a heck of a deal on a hypertech chip, but my question is that it came out of a 4.6L, and I need to know if it will go into a 4.2L

 

Hi Burkharts,

Well, it will physically attach to the PCM if it's their device that connects to the J3 connector on the back of the PCM (meaning their chip module), but it will not allow your vehicle to run with it installed, as you have a completely different engine. You would have to have Hypertech reprogram that chip for use on your vehicle before you can make any use of it.

Contact Hypertech directly to see if they will do that for you and if so, what the cost will be, and ask them to include a new fresh copy of their installation instructions if you can't get them from the original owner. Once you know how much it will cost to reprogram that unit, then you can decide if the price you have to pay to purchase that used Hypertech chip added to the cost of the reprogramming that will be required still makes it a better deal than buying a new chip with a warraty & Tech Support benefits, etc.

Good luck!