LB7 - DSP 5 Switch - INSTALLATION & TROUBLESHOOTING

[@KooshdaakaaGarage]

That looks a lot easier than I thought it would be. Thank you!

[@Duramaxtuner]

@KooshdaakaaGarage Glad to be able to help!

[@JamesWilliams-hi4ti]

my 2003 duramax has the tuner on it works fine until i get to 60 mph then you put your foot too it then it acts like there is no passing gear our bogs down any sugestions

[@Duramaxtuner]

Check to see if you are holding rail pressure.

[@wolf483403]

By buying the switch can it be used on a stock ecm on the duramax

[@InsantexCorp]

have a 03 lb7 with a dsp5, ohms tested good, connection is good volts change and are good, but the autocal shows 0v on the scan tool and it acts like truck is stuck on eco tune, im using Sunny Diesel tuner but he's confused on it also

[@Duramaxtuner]

That's a bizarre one. It could be the pins are possibly not connecting fully or the ECM is having issues.

[@tacticalcamel703]

My knob for my switch broke off and i was trying to fix it and i was about to take it off for adjustments and i had to switch it around to get it back off again and when i did it kept turning. Can i get some help with this asap?

[@tacticalcamel703]

And will this affect my truck when i crank it?

[@Duramaxtuner]

Can you call tomorrow morning 815-568-7920 and talk to customer service? Joey is the dude in the video and he can help. Sorry you are having problems.

[@tacticalcamel703]

Duramaxtuner I guess it doesn't change the tune when the truck is off, because it was still on the same tune i had it on. I believe I have no problems, I'll either buy another switch or try to fix this one again but everything still works.

[@Duramaxtuner]

OK.

[@dannypacheco9794]

hey do you guys happen to make an egr delete kit for the lb7?

[@Duramaxtuner]

No sir.

[@calebs5439]

Danny Pacheco i read thag the lly delete will work..i just cut some thin plate out and used 2 foot of heater hose

[@dannypacheco9794]

caleb s thanks I appreciate it

[@Stigman11]

Do the LB7 even have EGR?

[@jakeburchett4572]

TheStig pretty sure they don’t

[@jakek7112]

Installed now the truck won't fire only cranks

[@jakek7112]

Efi live throws the $05 code when I try and flash it

[@Duramaxtuner]

@@jakek7112 Sounds like a harness issue. Go back over the switch install and verify no other wires got disconnected.

[@jakek7112]

@@Duramaxtuner I have the harness back off all the pins look straight and in line with one another

[@jakek7112]

@@Duramaxtuner no wires were forced out from install

[@jakek7112]

@@Duramaxtuner Took out the switch with no change

[@kylebrown6962]

Ever have a truck act like the tunes don’t switch? Switch is wired and working properly but truck feels like it’s on race mode in every position.

[@Duramaxtuner]

@kylebrown6962 We have definitely seen this happen with new tuning before. Most likely your tune was installed incorrectly or there is an issue with the tune file. If you got the tuning from us give us a call at (815)-568-7920 and we would be happy to help!

[@FullSendCo1]

Same thing with me