
Jay P
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2021 Silverado 6.2 Liter with 10-Speed-DFM Disabling
Jay P replied to Ptman's topic in 2019-2023 Silverado & Sierra
I had an issue with the Pulsar on my 19 GMC. If you look at instant fuel economy with it attached you will notice it never gets to 99mpg like it does without the Pulsar when coasting. I think it's not allowing the injectors to cut fuel when coasting and that why mileage drops. When I had the Range DFM disabler installed the milage didn't drop at all. Jay -
2021 Silverado 6.2 Liter with 10-Speed-DFM Disabling
Jay P replied to Ptman's topic in 2019-2023 Silverado & Sierra
If you put the transmission in M9 DFM will not be active. The range DFM disabler is hit/miss (10 speed only). It works for some and doesn't work for others. Don't know of any other options other than the Pulsar you mentioned. Jay -
While I agree that $400 is too much, the windows comparison is not valid since there isn't a tech applying the update. If you take your computer to a repair shop and they have to apply an update you will be charged for the techs time. I would ask for a good will update since you are only 2 weeks out of warranty. Jay
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Dead battery and check engine light
Jay P replied to 2020gmc's topic in 2019-2023 Silverado & Sierra Troubleshooting
I leave the charger on the tonneau cover where it's hard to miss. Jay -
Dead battery and check engine light
Jay P replied to 2020gmc's topic in 2019-2023 Silverado & Sierra Troubleshooting
True but that connection is there to charge/maintain an RV battery (it can also provide power for electric brakes) so it has to be direct and the wire sized properly to do that. -
Dead battery and check engine light
Jay P replied to 2020gmc's topic in 2019-2023 Silverado & Sierra Troubleshooting
Got one of these. Bought some wire at Home Depot (2 wires in one cable). Hooked up the + & ground. My battery maintainer came with an adapter meant for a motorcycle battery which I soldered on to the 2 wires. Just plug it in and let in charge/maintain the battery. I work from home so I don't drive much anymore. I can go 3 to 4 weeks without doing anything and my truck will still start fine but that can't be good for the battery. All the computers the truck has drain the battery even though they go to sleep after a short time. Jay https://www.amazon.com/POLLAK-12-706-Plastic-Blade-Style/dp/B000BGOFCC/ref=sr_1_omk_6?crid=F4B0G3WWYSDM&keywords=7+pin+trailer+plug&qid=1648997643&sprefix=7+pin%2Caps%2C174&sr=8-6 -
Dead battery and check engine light
Jay P replied to 2020gmc's topic in 2019-2023 Silverado & Sierra Troubleshooting
I made a connector that plugs into the trailer plug to hook up my battery tender. Works great. The only thing is you can't charge at a high rate since the fuse for the trailer power is 40amps. Jay -
2021 trail boss stall out
Jay P replied to Justin Mays's topic in 2019-2023 Silverado & Sierra Troubleshooting
Is your air filter dry or oiled? If it's oiled you may have oil on the MAF. Jay -
Those transponders are passive (at least all the ones I have had) and are not the problem. They work like the chip on a credit card active only when put under a transponder reader.. I would be looking for something interfering with the remote to truck signal. Could be something on the truck or something in the area you live causing issues. Aftermarket wireless cameras have been known to cause issues with keyless entry/starting. Jay
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Maybe - Auto stop/start
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