Home » Performance Chips » Do Power Programmers Actually Work Do Power Programmers Actually Work I want to get a power programmer but i want to know if they actually work or are just a ripoff. Anyone who has ever used one feel free to tell your experiences with these. Tags:actually, Power, programmers, Work Related Questions Why Does My Speedometer Head Keep Boucing Up And Down I have a ’99 Land Rover Discovery and my speedometer head skips or bounces. For example if I am going about 40 miles an hour, it will bounce between How To Upgrade A 2003 Ford F150 Harley Davidson I own a 2003 f150 Harley Davidson edition. It has a 5.4L supercharged engine. Now dont get me wrong it has plenty of power but I want a little Answers for The Question charolastra It works for me. I have a 99 TJ I6 with MSD 6AL, Edge Tbody, Hesco spacer, Livewires, Screaming demon, cold air intake and it’s working great. Then I added the Jet chip stage 2. Lowered the thermostat, bigger headers, took off the cat ant put a flowmaster 40. I noticed a big difference on it. So I removed the chip just to test it and I felt it right away. So I put it back and since then I had no problems. Now I gap the spark plugs to 65. To me it works great I don’t know about the other ones. Dale I tried a hypertech on my 96 cherokee 4.0, I didn’t notice any significant difference in power. After trying the programming for higher octane fuel and deciding that it wasn’t running right(pinging) I tried using the normal gas setting and it decided to run badly there too (it ran ok there before, go figure…) The biggest power difference I ever got was when I installed a bored out throttle body, 63mm, (stock is 58mm with a weird taper in it) Incoming search terms: Do Power Programmers Work,Do Power Programmers Really Work,Do Car Programmers Work,Do Car Tuners Really Work,What Do I Hypertech Programmers Really Do?