Stock Boost around 10psi
08-31-2015, 10:26 AM
#11
Administrator
Join Date: 10-13-2011
Location: Welland,Ont Canada
Posts: 36,458
Perfect, then you've done your due diligence and know you got what you paid for, brand new up to date connections and not used, for just $10.00 more, now maybe the member selling his will see this and adjust his price accordingly or not, but I did try to promote our members first, and that's all I was attempting.
Cheers!
Cheers!
08-31-2015, 05:18 PM
#12
Senior Member
Join Date: 05-09-2012
Location: LOS ANGELES, CA
Posts: 120
im wanting to do the stage one kit but i have quick question. if i install the sensors my self than drive to the dealer is it going to have any affect to my hhr or does the dealer have to do all the work at the same time?
08-31-2015, 05:23 PM
#13
Senior Member
Join Date: 05-09-2012
Location: LOS ANGELES, CA
Posts: 120
Or just get the sensors and adapters, CED LNF Stage Kit CEDLNF1
and modify the stock file.
It has been determined by a number of people on the tuning end that working with the stock file and adding the calibration for the sensors has worked out better than using the GMTU tune. On my 2008 SS I removed my original tune to have the GMTU kit installed as was very disappointed in the performance of that tune, but, I wanted/needed the 3bar sensors so at the time (2008/2009) that was the only way to get them and still have a warranty. I've since altered my stock file to add the performance enhancements I like and I can say I am much happier. Since mine kit was one of the first releases it didn't have the adapters. I had to go back a remove the crimp on connectors and solder and heat shrink the connections. Mine never threw a code but I would have reduced boost conditions, soldering the connections fixed the issue.
and modify the stock file.
It has been determined by a number of people on the tuning end that working with the stock file and adding the calibration for the sensors has worked out better than using the GMTU tune. On my 2008 SS I removed my original tune to have the GMTU kit installed as was very disappointed in the performance of that tune, but, I wanted/needed the 3bar sensors so at the time (2008/2009) that was the only way to get them and still have a warranty. I've since altered my stock file to add the performance enhancements I like and I can say I am much happier. Since mine kit was one of the first releases it didn't have the adapters. I had to go back a remove the crimp on connectors and solder and heat shrink the connections. Mine never threw a code but I would have reduced boost conditions, soldering the connections fixed the issue.
08-31-2015, 06:07 PM
#15
Platinum Member
Join Date: 12-06-2009
Location: Alabama
Posts: 11,089
The dealer is most likely gonna charge the full labor hours anyway because it's based on what the labor book calls for. Usually it's in the $200 range.
May as well let them do the sensors too if their going to charge you for it.
Being a former mechanic ( and I hate for any one else to work on my vehicles), I thought about doing the sensors myself. Wasn't a money thing for me but I realized that if I had any problems after the reflash, then the dealer could deny the warranty that comes with the kit/install and blame it on my work.
Yes there is a GM warranty with the GMTU kit.
Best to let the dealer do it all if you go with the factory GMTU.
Last edited by firemangeorge; 08-31-2015 at 07:53 PM.
09-01-2015, 12:16 AM
#16
Senior Member
Join Date: 05-09-2012
Location: LOS ANGELES, CA
Posts: 120
If you install the Tmap sensors yourself, then drive to the dealer for the reflash, it will throw a bunch of codes and probably run like crap on the way there.
The dealer is most likely gonna charge the full labor hours anyway because it's based on what the labor book calls for. Usually it's in the $200 range.
May as well let them do the sensors too if their going to charge you for it.
Being a former mechanic ( and I hate for any one else to work on my vehicles), I thought about doing the sensors myself. Wasn't a money thing for me but I realized that if I had any problems after the reflash, then the dealer could deny the warranty that comes with the kit/install and blame it on my work.
Yes there is a GM warranty with the GMTU kit.
Best to let the dealer do it all if you go with the factory GMTU.
The dealer is most likely gonna charge the full labor hours anyway because it's based on what the labor book calls for. Usually it's in the $200 range.
May as well let them do the sensors too if their going to charge you for it.
Being a former mechanic ( and I hate for any one else to work on my vehicles), I thought about doing the sensors myself. Wasn't a money thing for me but I realized that if I had any problems after the reflash, then the dealer could deny the warranty that comes with the kit/install and blame it on my work.
Yes there is a GM warranty with the GMTU kit.
Best to let the dealer do it all if you go with the factory GMTU.
09-01-2015, 08:30 AM
#17
Senior Member
Join Date: 09-07-2008
Location: Mebane, NC
Posts: 1,016
As firemangeorge said, you can't install the sensors and drive the car to the dealer.. some have tried it. My suggestion is to find a local tuner that knows how to tune an LNF. Trust me they are a different animal from anything else. If they know about the LNF they should also know about the calibration required for the new sensors and will be able to do it for you.
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