Mail order pcm question.
02-12-2007, 08:42 AM
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Mail order pcm question. I just got my car back and now I am going to install the custom tune pcm I ordered. I know I have to have the crank position relearn done. I am taking it to the dealer today. Is there any chance they can mess up my tune when they do this relearn. thanks for any info.
02-12-2007, 08:44 AM
#2
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as long as they don't flash it with any other GM updates or anything, you should be fine...
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06MonteSS / DiabLew Tune
2014 Camaro 2SS/RS - LS3, 6-speed manual, short-throw performance shifter, NPP dual-mode performance exhaust, 1LE front splitter, ZL1 rockers, Z28 Rear Spoiler, all paint-matched Red Rock Metallic, BMR strut tower brace, Cold Air Inductions cold air intake, Apex Motorsports, Inc. catch-can, Custom DiabLew Tune
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com
06MonteSS / DiabLew Tune
2014 Camaro 2SS/RS - LS3, 6-speed manual, short-throw performance shifter, NPP dual-mode performance exhaust, 1LE front splitter, ZL1 rockers, Z28 Rear Spoiler, all paint-matched Red Rock Metallic, BMR strut tower brace, Cold Air Inductions cold air intake, Apex Motorsports, Inc. catch-can, Custom DiabLew Tune
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com
02-12-2007, 08:52 AM
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OK I am little nervous now. I called three dealerships and the first one I called said they had to reset every thing on the pcm to do the relearn. The last one was the cheapest. 
02-12-2007, 09:05 AM
#4
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they shouldn't have to reset everything... they can just do a case learn with the TechII scanner tool...
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06MonteSS / DiabLew Tune
2014 Camaro 2SS/RS - LS3, 6-speed manual, short-throw performance shifter, NPP dual-mode performance exhaust, 1LE front splitter, ZL1 rockers, Z28 Rear Spoiler, all paint-matched Red Rock Metallic, BMR strut tower brace, Cold Air Inductions cold air intake, Apex Motorsports, Inc. catch-can, Custom DiabLew Tune
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com
06MonteSS / DiabLew Tune
2014 Camaro 2SS/RS - LS3, 6-speed manual, short-throw performance shifter, NPP dual-mode performance exhaust, 1LE front splitter, ZL1 rockers, Z28 Rear Spoiler, all paint-matched Red Rock Metallic, BMR strut tower brace, Cold Air Inductions cold air intake, Apex Motorsports, Inc. catch-can, Custom DiabLew Tune
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com
02-12-2007, 09:12 AM
#5
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here's some info I found on other forums about the case relearn:
"It is advisable to make a trip to the dealer and instruct them you have a DTC P1336 which calls for a CASE learn. Some may refer to it as a Crank Positioning. Use some degree of discretion while asking them *NOT* to reflash the PCM. If they reflash the PCM, all your tweaks are gone forever. It's a simple process that should take no more than 5 minutes. Most dealers do not have a problem with it. Many do it for free while other may charge a modest fee for it."
"The CASE learn is a must, unless you want your shifts to be a little funky or off... I was charged $40 for the service. They use their GMTechII computer, bring it out and plug it into your car... basically they rev the engine untill it cuts out.... then have them do the process AGAIN a second time untill redline and your case learn will be set."
"It is advisable to make a trip to the dealer and instruct them you have a DTC P1336 which calls for a CASE learn. Some may refer to it as a Crank Positioning. Use some degree of discretion while asking them *NOT* to reflash the PCM. If they reflash the PCM, all your tweaks are gone forever. It's a simple process that should take no more than 5 minutes. Most dealers do not have a problem with it. Many do it for free while other may charge a modest fee for it."
"The CASE learn is a must, unless you want your shifts to be a little funky or off... I was charged $40 for the service. They use their GMTechII computer, bring it out and plug it into your car... basically they rev the engine untill it cuts out.... then have them do the process AGAIN a second time untill redline and your case learn will be set."
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06MonteSS / DiabLew Tune
2014 Camaro 2SS/RS - LS3, 6-speed manual, short-throw performance shifter, NPP dual-mode performance exhaust, 1LE front splitter, ZL1 rockers, Z28 Rear Spoiler, all paint-matched Red Rock Metallic, BMR strut tower brace, Cold Air Inductions cold air intake, Apex Motorsports, Inc. catch-can, Custom DiabLew Tune
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com
06MonteSS / DiabLew Tune
2014 Camaro 2SS/RS - LS3, 6-speed manual, short-throw performance shifter, NPP dual-mode performance exhaust, 1LE front splitter, ZL1 rockers, Z28 Rear Spoiler, all paint-matched Red Rock Metallic, BMR strut tower brace, Cold Air Inductions cold air intake, Apex Motorsports, Inc. catch-can, Custom DiabLew Tune
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com