When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I've had this G-Tech for about 2 years now and have used it on 3 different vehicles....99 Trans Am, 03 Cobra, and 03 Lightning and have had no problems calibrating it and getting it to work. It has been very reliable and and very accurate.....Problem is.....I installed it on my 07 Vette and I can not get the RPM's to calibrate correctly. I'm getting an erratic RPM reading. I've tried calibrating it at different RPM settings with no result....Anybody else have this problem or is mine just broken?
I've had this G-Tech for about 2 years now and have used it on 3 different vehicles....99 Trans Am, 03 Cobra, and 03 Lightning and have had no problems calibrating it and getting it to work. It has been very reliable and and very accurate.....Problem is.....I installed it on my 07 Vette and I can not get the RPM's to calibrate correctly. I'm getting an erratic RPM reading. I've tried calibrating it at different RPM settings with no result....Anybody else have this problem or is mine just broken?
Try two things -- one, use a different power socket (if you are using console, go to dash, or vice versa), two, add a plug-in power cord extension to the meter's power cord. The idea of either of these ideas is to change the quality of power to the meter, since it uses the 12V and tries to pick up the RPM signal via 'noise' on top of the DC.
I found in my '40 Ford coupe, if I go right to the dash connector, the 12V is apparently too 'clean' to sync an RPM signal from my electronic ignition, but if I add the extension, it works perfectly.
I haven't used the G-Tech more than a few times on my 2006 C6, but it has worked off of the cigarette lighter socket (did not try console power), with no extension, for me.
Last edited by TrackNoob; Aug 8, 2007 at 04:07 PM.
I have one that I haven't used for a while. If I remember correctly, there is a way to calibrate it by manually going through 22 settings for the RPM meter. Hold the revs at 2k or 3k, then select the setting that matches your RPMs the closest and is stable.
Give GTech a call. They are good to work with. I just got off of the phone with them inquiring about upgrading the firmware on my GTech Pro Competition. It is a v1.0 firmware. Can't use the Internet download to upgrade. They said send it to them and they would upgrade it for free. We chatted about a few things - the tech was happy to give me pointers on use.
Try two things -- one, use a different power socket (if you are using console, go to dash, or vice versa), two, add a plug-in power cord extension to the meter's power cord. The idea of either of these ideas is to change the quality of power to the meter, since it uses the 12V and tries to pick up the RPM signal via 'noise' on top of the DC.
I found in my '40 Ford coupe, if I go right to the dash connector, the 12V is apparently too 'clean' to sync an RPM signal from my electronic ignition, but if I add the extension, it works perfectly.
I haven't used the G-Tech more than a few times on my 2006 C6, but it has worked off of the cigarette lighter socket (did not try console power), with no extension, for me.
I've tried both power sockets...same result. I'll try what you said with the extension next....Thanks
I have one that I haven't used for a while. If I remember correctly, there is a way to calibrate it by manually going through 22 settings for the RPM meter. Hold the revs at 2k or 3k, then select the setting that matches your RPMs the closest and is stable.
I've tried that too.....None of the settings even close to being stable. The best setting I found gave me an crazy idle RPM, but was pretty close above 2K RPM's
Give GTech a call. They are good to work with. I just got off of the phone with them inquiring about upgrading the firmware on my GTech Pro Competition. It is a v1.0 firmware. Can't use the Internet download to upgrade. They said send it to them and they would upgrade it for free. We chatted about a few things - the tech was happy to give me pointers on use.