S300v1 Rev Limiter problem : ID#S300-1485
I have a freshly socketed ecu (P28-A52) automatic with conversion to manual (remove rp17-18 jumper rp18)
The board has had 2 .1uf cap. installed in places c51 / c52. not sure if this would cause the issue,
1.2K Resistor used on R54 - J1 active and in place.
This board was fine on the dyno and the hondata unit has been fine in other boards, and I have tested it in yet another ecu just recent since the problem occurred(p75board) and this issue will not go away.
The Problem: Rev Limit Boundaries work fine at all rpms and settings up until a ceiling of 6000rpm regardless of the boundary entered and up loaded. things have been veriefied by: closing the data link after upload, then closing smanager, reopening smanager and then initiate data link again. download ecu and it will read identical to where I had left it over 6k. car still hits a crisp clean rev limiter although maxed out at 6000rpm with the settings I managed.
Ive tried everything from ohming all my connections on the ecu board to ohming my hondata head unit sockets with a male header pin to a clip lead via muti-meter, running the other lead to the next open trace testing point. I am stumped. I have inspected my igniton system and grounds. I have never seen this problem before.
I am using NGK 7173 8 Non-Resistor Plugs and Nology Hotwires. never had any weird issues that have been reported by other owners with similar ignition setup.
I am using a data link usb cable with magnent pass through to keep noise free as possible.
I am using a custom handmade wire harness obd2a with obd1jumper with JUDD wire (not exactly judd brand) on all sensors or pulse signal wires.
my next step will to be to test a friends head unit with my exact map, laptop, ecu, and car.
PS> Car runs perfectly fine up until the rev limit that will not budge after its "ceiling" of 6k regardless of settings. no incorrect chip lighting can connect real-time and datalog.
S300v1 Issue with rev limits
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pretendo23
- Posts: 4
- Joined: Sat Aug 03, 2013 12:15 am
Re: S300v1 Issue with rev limits
Update as of this morning...
I attempted to set up a new calibration and then just adjust the injector size. this worked fine and verified, and started. I turned the car off and then I uploaded a similar tune file to notice the same error of 6k rev limit.
I installed a different version of hondata smanager to an older version and tried the whole process again with no luck. is there a way to reflash the firmware on the smanager?
later tonight I will post my Tune file datalog, I have tried all troubleshooting steps provided and some.
I attempted to set up a new calibration and then just adjust the injector size. this worked fine and verified, and started. I turned the car off and then I uploaded a similar tune file to notice the same error of 6k rev limit.
I installed a different version of hondata smanager to an older version and tried the whole process again with no luck. is there a way to reflash the firmware on the smanager?
later tonight I will post my Tune file datalog, I have tried all troubleshooting steps provided and some.
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pretendo23
- Posts: 4
- Joined: Sat Aug 03, 2013 12:15 am
Re: S300v1 Issue with rev limits
Laptop has died, I have no datalogs for the car yet. Here are my tune files that I tried to test. both MAPs tested on (2.2.7 firmware1.04) and (2.2.4 firmware1.04)
map sensor variance between tune maps was adapted to the now current hondata 4bar on the laptop. this version is exactly the same as the one on my laptop minus the map sensor difference
Socket feels very easy to install board. male header pins are new, when usb cable is installed, occasionally the car will have to be turned off and turned back on.
map sensor variance between tune maps was adapted to the now current hondata 4bar on the laptop. this version is exactly the same as the one on my laptop minus the map sensor difference
Socket feels very easy to install board. male header pins are new, when usb cable is installed, occasionally the car will have to be turned off and turned back on.
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Re: S300v1 Issue with rev limits
We need datalogs showing the problem.