evovette

iTrader: (3)

I just recieved my cable in the mail today. Thanks to everyone on this board I have been able to learn my way around this great product. (Luda gets an A+ for his rescale write up) Now on to my question....could I just get a ROM with a P0300 fix and transfer my custom Flash numbers into it, then flash it into my ECU? I just dont want to go to the dealer and have my mods noticed just in case something does go wrong and I have to RE-stock my EVO

freddiet

iTrader: (1)

yes. Go to openecu.com It is in the Forums...

nutrulz

iTrader: (14)

There is a theory that the P0300 code is due to a harmonics problem with the stock flywheel. I truely believe that this was my problem since after I installed the ACT flywheel I have never had a P0300 code. I'm sure the flash will help, just dont expect a world of difference.

evovette

iTrader: (3)

Thats odd I never had the P0300 problem until after my 2nd custom flash....and thanks for the heads up on where to find the fix.

MalibuJack

iTrader: (5)

Do you have cams? And did you look at the snapshot data to see what RPM and throttle position it occurred at?

evovette

iTrader: (3)

Yes I have cams and an exedy clutch, always happens from 2500-3200 rpm at 15%-25% throttle and to be honest I dont remember the load value, Ill get ECU+ to snap shot it again in the AM

chrisw

iTrader: (2)

It's not harmonics from the flywheel. I have the same flywheel and I still get the p0300 in the right weather (like just before it rains)

I see the same thing, every time I get the P0300, its in the same RPM range, with light throttle according to the DTC freeze frame data retreived from the ECU.

evovette

iTrader: (3)

Ok why is it that I cant find a ROM on openECU.com........am I missing something?

Ludikraut

iTrader: (17)

Thanks.

Did you register on the forums at openecu.org? If you're not registered, then you cannot see the attachments. I learned that one the hard way.

l8r)

vboy425

iTrader: (19)

it's not a theory, it's the true. i know it from my own experience. i have spent over $ 300 dollars trying to narrow down the issue, after changing out my tranny with Shepard's Tranny, 6k on it no sign of a single p0300. if you look at the tranny on top right under the battery you can see the sensors that trigger the p0300.

tabio42

iTrader: (15)

What sensor is that?

MalibuJack

iTrader: (5)

I think what your getting is the same bug I have started seeing in the ECU+ firmware.. Under very low load, rolling around in first gear out of my parking garage at work, it triggers the code.. I have had cams and all my mods on my car for quite some time before the ECU+, Tom is working on a fix that may help if this is what your seeing.. I didn't start seeing it until recently, but noticed it happened a few times, now I can reproduce it any time I leave my garage at work.

Now, this may be totally unrelated since my exhaust system downpipe is making contact with my crossbar after the new turbo install, and I have always heard my downpipe clunk against that par as the engine shifted, only it never resulted in a P0300 code but Ihave had one occasion where I recall hearing the clunk around the same time the CEL light came on.

This is two possibilities for you to look at.

evovette

iTrader: (3)

ok how about another quick question, I got my cable now, read from the ecu file just fine but when i try to look at the tables they are undefined, now what info do I need to find a suitable definitions for my rom? and how do I download it?








* only data I can access is my imobilizer code
** my identifier is 9642007

MalibuJack

iTrader: (5)

You should post in a different thread for that specific problem.. If its undefined then one of the contributors (Jason at Mynes has been doing many of them) will have to create a definition for it.. If the Rom is stock, you might want to post it in the OpenECU forums..

evovette

iTrader: (3)

will do