raasfaas

iTrader: (30)

Quick question, I just got my map sensor and am in the process of doing the rom changes (88590015). At the last section where it says to disable the EGR test you need to change ECU Periphery2 from EFDF to EDDF...but when I open my periphery2 it shows 0001 instead of EFDF...everything else shows up like the instruction says so I just want to be sure this is ok before I move on.
Thanks.

Appauldd

iTrader: (22)

That was the older way of disabeling the EGR test. Now it is done by changing the Periphery bit FCA bit 9 to 0, and also FAA bit 11 to 1 to disable the EGR completly.

raasfaas

iTrader: (30)

Oh ok, I guess I haven't gotten to that part yet...need to do a search to find those periphery tables.
So when I do it that way would I just leave the value that's in the periphery2 as is?

fostytou

iTrader: (15)

The value in periphery 2 (which is the FCA bits) will change when you change the FCA bit 9 via blobbits. It will change the 0xXXXX hex value because they are pointing to the same thing, just displaying it in a different way.

I personally would not completely disable the EGR via FAA bit 11 as applaud suggested, but that is my personal preference. If things are working fine with the EGR enabled then it may be OK to just leave it.

Note that disabling the EGR test will prevent any CELs, but may not pass emissions testing if that is an issue for you. If you have to do emissions testing you may want to leave it enabled and just clear the code when it comes up (or apply the new patch to "fool" the system).

Appauldd

iTrader: (22)

I have found no ill effects from disabling the EGR the way that was suggested. But then again, no emission testing in my state, and my egr is blocked off any how.

raasfaas

iTrader: (30)

well here in Jamaica we don't have any emissions tests...so if changing the FAA bit 11 to 1 totally disables the EGR then what does changine the FCA bit 9 to 0 do?
Appauldd - even though you said its the old way, but would I need to get all these periphery tables defined if I just want to disable the test, or can I just do it from changing periphery2 to EDDF?

RoadSpike

iTrader: (5)

Edit:

I was totally off on the bits n/m

Appauldd

iTrader: (22)

The EGR TEST can be disabled with FAA bit 11 changing it from 0 to 1.

The EGR operation will be disabled with FCA bit 9 changed from 1 to 0.

Appauldd

iTrader: (22)

Cold start retard????? This isn't want was posted in other conversations.

Now I am getting confused....UGH

RoadSpike

iTrader: (5)

Really?

I thought a setting of 0 disabled the routines. Tephra said that bit 9 was the cold start retard though or was that found to be different?

RoadSpike

iTrader: (5)

This is where i got the bit 9 info

https://www.evolutionm.net/forums/ec...your-maps.html


EDIT:

Oh i totally understand what your saying now. I'm talking about the FAA bits and your talking about the FCA bits.

https://www.evolutionm.net/forums/at...t_20080830.pdf

Appauldd

iTrader: (22)

OK so I am all screwed up now....Sorry for any confusion I may have caused.

This is what my notes say....
FCA Bit 9 to 0 = Disable EGR Test
FAA Bit 11 to 1 = Disable EGR

I havn't noticed the cold start 2000 RPM issue.

So I guess others have discovered that FCA bit 9 is for cold start....Got it. I will make the chages to my ROM. Thank you for clarifying.

Appauldd

iTrader: (22)

So now we need to figure out what the answer is.

I am so confused.

RoadSpike

iTrader: (5)

No no you had it right I'm the one on cold meds here

I didn't see the mention of FCA bits and mistakenly assumed you guys were talking about the FAA bits. I think i should just take a rest today .

wreckleford

iTrader: (2)

If your car is JDM the periphery bits will likely be different. The EGR may be non existent. Are you sure you are using 88590015?