Have a REP problem and im out of answers. Does the computer need to have the crank relearn completed on a new PCM? Will it cause a REP issue?
This is a 2010 Camaro.
Have a REP problem and im out of answers. Does the computer need to have the crank relearn completed on a new PCM? Will it cause a REP issue?
This is a 2010 Camaro.
it shouldnt cause REP. for some reason my car won't do a crank relearn (2005 vette E40) but runs like a champ.
NO! The crank relearn has nothing at all to do with REP.
EFI specialist
Advanced diagnostics, tuning, emissions
HPtuners dealer and tech support
email=[email protected]
Thanks.Originally Posted by edcmat-l1
This car has been a nightmare.
Well, if you start with what the combo is, and post the tune and data log, you're more likely to get more/better help, and maybe it wouldn't be such a nightmare.
EFI specialist
Advanced diagnostics, tuning, emissions
HPtuners dealer and tech support
email=[email protected]
2010 Camaro M6 Lsx 409 10:1 ,GMPP ls3 heads ,KB 4.2 @19lbs ,pump gas with a tripple nozzle Snow stage 3 kit ,SD 80's ,Dual fp with return set @ 62 psi static. Out of the blue the car started going into REP. On the spot at 5900 rpm everytime in every gear. I have three 2010's that have this same problem.
With this particular car it was going from a c16 and 24lbs tune to a pump gas 19 lbs tune. It had run for the last two weeks and 700 miles getting the crap beat out of it on the street and dyno. It ran perfectly fine during that time. I made 10+ pulls on the dyno with it @24lbs without a single problem. The only thing that was changed was the fuel and the pulley then it started going into REP. This was tuned both times with beta 2.23.436.
Last edited by Sam88gta1; 11-13-2011 at 10:19 AM.
Why'd you remove the file and log?
DSX Tuning - Authorized HP Tuners Dealer
http://www.dsxtuning.com
http://www.facebook.com/dsx.tuning
Just say no to bull s***.
IF YOU WANT HELP, POST A FILE!
Because I only hosted them for him to view. If he didn't see anything that stood out I doubt anyone else will. I'm not in the business of putting tunes like that out into the public.
*rolls eyes*
Last edited by DSteck; 11-14-2011 at 07:26 AM.
DSX Tuning - Authorized HP Tuners Dealer
http://www.dsxtuning.com
http://www.facebook.com/dsx.tuning
Just say no to bull s***.
IF YOU WANT HELP, POST A FILE!
Nice edit.
Clearly you still have a problem with my ID opinions. Shouldn't you let that go and move on with your life?
I don't care about your ID opinion. I just think it is ridiculous that you think only one person could possibly spot something, yet you made a public thread asking anyone for suggestions. Seems like just emailing him direct would have been the thing to do.
DSX Tuning - Authorized HP Tuners Dealer
http://www.dsxtuning.com
http://www.facebook.com/dsx.tuning
Just say no to bull s***.
IF YOU WANT HELP, POST A FILE!
I do not need YOUR help with this subject and I am not going to post the tune for you to nitpick to death.
I was not just asking anyone for help. I was looking for a person with advanced knowledge. I found that person and we have it solved. Thanks for your help.
Last edited by Sam88gta1; 11-14-2011 at 08:32 AM.
Why not share what the issue was in the event somebody runs into the same issue?
Last edited by DSteck; 11-14-2011 at 09:58 AM.
DSX Tuning - Authorized HP Tuners Dealer
http://www.dsxtuning.com
http://www.facebook.com/dsx.tuning
Just say no to bull s***.
IF YOU WANT HELP, POST A FILE!
Don't set the ETC area scalar to anything other than stock with a 102 tb if the airflow is above 2.0 g/cyl. I changed it back to stock from 7280 and the problem went away. Always something new to learn.
Chris at HPT... Can you chime in on what the ETC Area Scalar has to do with REP mode?
Was the P0101/P0106/P0121 test disabled? The cars I've done that pass the 2.0 mark all have stock throttle bodies, so I want to understand what makes the area scalar come into play.
DSX Tuning - Authorized HP Tuners Dealer
http://www.dsxtuning.com
http://www.facebook.com/dsx.tuning
Just say no to bull s***.
IF YOU WANT HELP, POST A FILE!
Yes they were all disabled.
Possibly has something to do with the p0068 calculated airflow vs map? P0068 was disabled during this rep problem.
With it making 24lbs the g/cyl were reaching 2.8 an never have a problem but the scalar was set to stock.
I'm gonna throw this out there, the LS3 throttle body motors have had a pretty good rate of sucking shut on engines drawing that much vacuum on them. I have had to fight that a couple of times. The LS9 throttle body is a touch smaller, but I haven't had a problem with them yet. If you log tps during the run you'll likely see the blade closing before rep happens. I am curious about the main question at hand though, it takes less time to do a crank learn that it likely did for you to type this. Why not just do it and that would have answered your question. Wouldn't have fixed the problem, but would have answered your question.
The LS9 TB was also designed to be on the vacuum side of a blower, albeit a smaller one with less boost. Have you ever seen issues with throttle bodies on the pressure side? I haven't but was just curious.
DSX Tuning - Authorized HP Tuners Dealer
http://www.dsxtuning.com
http://www.facebook.com/dsx.tuning
Just say no to bull s***.
IF YOU WANT HELP, POST A FILE!
Only the 87mm truck version which odd enough is what the LS9 is based off of. The LS9 is just a damn good version of that. I hope someone makes a 102mm based off of the LS9 motor assembly. The last 102mm Nick Williams I used on a TVS2300 would suck shut by 6100rpm. It was moving alot of air, but I'd hoped for better from a throttle body like that.
Im having this problem on two 2010's. The first post I made was about my personal car. It does not have the factory original computer in it and I think because ABS and all of the airbags are removed it will not take the relearn. It is a big ci high compression nitrous motor with the NW102 tb. Its been a full year since it last made a pass at the track due to its REP issue.
The blade does close just before the REP but that is always the case with REP.
The car with the KB was not having the problem of the tb sucking shut even at 24lbs of boost making 1080 rwhp.. Ive never even had that problem with a car.
Reply With Quote
