Thread: Request for Updates for the DHP v1 PCM

Hi there. Please help me out. Am looking to know whether or not if there has been any updates for the DHP v1 PCM for my 2000 Pontiac Grand Prix GTP ? Anybody know if there has been ? If so, where and who can I contact for the updates ? Hopefully if there are DHP v1 PCM updates that they'll alleviate the EGR valve problem causing some hesitation in terms of the ignition going through the boost phase.

Originally Posted by GTPpower

DHP has been out of buisness for years. There are no updates for their canned PCM's.

Thank you for your reply. I am getting a P-0401 code. It looks like I may have to replace the EGR value or MAP sensor needs replacing if you're still getting some hestitation after replacing spark plugs and ignition wires. Do you know where I can get supply and instruction on replacing the items myself as I am here in Calgary, AB, Canada ?