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View Full Version : mystery rev limiter driving me nuts


Y BE AVG
April 30th, 2013, 02:42 AM
Maybe I'm just missing it, but this is driving me crazy. I'm hitting a rev limiter about 6900 rpm. all rev limits are set to 7300. It's not a speed limiter as it does it in the low gears too, but turned off all speed limits anyway. On the dyno trying to finish the MAF calibration before going on to MAP. It's closing the throttle on me. This car is a 2010 Camaro, stick. Whipple, heads, cam, should pull to 7500 or so but I'm stuck. Any help would be great. Thanks in advance.
ScarabEpic22
April 30th, 2013, 08:13 AM
Try setting B0515 and B0517 to No and B2501 to a higher value.

There are also a few rev limiters EFILive doesnt have that HPTuners has, try this otherwise we might need to request some more tables.
GMPX
April 30th, 2013, 10:28 AM
Try this tune, there is an RPM limiter based on vehicle speed that was still at 6900 RPM, I just set it to 7300 RPM like the others.
ScarabEpic22
April 30th, 2013, 11:09 AM
Missed that one Ross, nice catch.

OP, you might have to set the limiter at 7400 to get it to keep everything open until 7300. Try it as-is, then if you still get a cut at 7200-7300 raise the limiter to 7400.
GMPX
April 30th, 2013, 11:24 AM
The dumb thing is, that limiter seems to only be in a few OS's.
ScarabEpic22
April 30th, 2013, 12:02 PM
The dumb thing is, that limiter seems to only be in a few OS's.

So, typical GM then, right? :D
GMPX
April 30th, 2013, 12:50 PM
Maybe it was only one platform team that requested it be added, who knows.
Y BE AVG
May 2nd, 2013, 03:23 AM
GMPX, that seemed to do it. Is this something we can get added.
ScarabEpic22
May 2nd, 2013, 04:40 AM
GMPX, that seemed to do it. Is this something we can get added.

Added to what? He changed the table in your tune, B5218. It's already there...
Y BE AVG
May 2nd, 2013, 04:50 AM
Added to what? He changed the table in your tune, B5218. It's already there...

Then I must be blind because I'm not sure where it is, can't seem to find B5218 in my software.
Maybe you can point me in the right direction
Y BE AVG
May 2nd, 2013, 04:57 AM
updating my efilive version now hopefully that fixes it. I searched for B5218, not found, I have B5216 b5217, so I know search is working
Y BE AVG
May 2nd, 2013, 05:05 AM
Updated software Fixed it, I thought I was going crazy. Thanks guys
ScarabEpic22
May 2nd, 2013, 06:26 AM
Updated software Fixed it, I thought I was going crazy. Thanks guys

Glad you got it figured out!
GMPX
May 2nd, 2013, 10:28 AM
GMPX, that seemed to do it. Is this something we can get added.

It has been added to all applicable E38 / E67 OS's already, however the calz files haven't been released because we made some changes to the torque model table we didn't want out just yet.