Trying to find info on crank/cam sensor signal for ecu swap
LOL funny guy 3g has had an evo ecu for 4 years I said my 2g (yes I have one of each 1g awd, 2g awd ,3g, and a 4g) was running the evo ecu and a 90550001 rom with no cels.
Last edited by 3gturbo; Oct 7, 2009 at 05:16 PM.
Since this thread has popped back up, I'll offer an update. We ended up switching over to the 96530006 rom and have had no major issues with it yet. One important note worth mentioning is making sure the DSM CAS is set properly, as it can mess with your timing values a bit. My friend Jeff drove the car pretty much all spring/summer up until recently when he grenaded the trans, but it ran extremely well considering. It also likes timing a lot more than my '03 Evo, with his car hitting a max so far of 16* at peak torque with HKS 272* cams and a Garrett 50 trim set to run 26-28lbs...and absolutely no knock on pump gas.
Only major issue that bothers him is the warm start...it tends to be a little groggy when trying to restart the car after it's been warmed up (and seems to be a common issue with this swap). This may be due to the stepper tables though, since I never really touched them.
Only major issue that bothers him is the warm start...it tends to be a little groggy when trying to restart the car after it's been warmed up (and seems to be a common issue with this swap). This may be due to the stepper tables though, since I never really touched them.
Yeah base timing can be a killer if you dont think to check it beforehand. Its odd seeing a T25 hit 170s peak and fall to 150 out the top at 13-14psi. I am going to go through the periphery and some of the disassembly to see what it is about the 9653 that keeps the sensor codes from popping up vs the 9694. They are wired the same so I would presume it has to be something software related.
It has to be software related, because as soon as we swapped roms all codes disappeared. That's why I was thinking maybe the CAS pulses might be read differently, or maybe because of how strict US emissions is that the software didn't like any variations of the pulse at all.
Interesting...I really wish I had a full working copy of IDA Pro, as of right now I only have the free version and can only do Intel processor bases, and I could at least follow up a bit more on this.
(It just seems ridiculous to me that one of the barriers of entry for getting started with Evo disassembly is a $1k piece of software.)
WinOLS definitely looks interesting for visualization!
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