Power Fc Ignition Timing Issue

[Gojira5767]

I went into Datalogit and changed the MAF but it said "Airflow/PIM write error". Do I need to input any values next to the voltages? I will give it a shot though. Thanks for all your help btw.

[DVS JEZ]

Make sure u are connected to the ecu and that u have read all, then select the afm and click write

[Gojira5767]

Honestly I did try that it didn't make any difference. I tried turning the car off then back on then rereading it then clicking air fuel meter and then changing it and it is still wouldn't write it. And just to clarify do I need to click the update button or write all?

[DVS JEZ]

Yes click update after selecting afm. I normally have it on auto update but becareful.

Then when ur done click write all

[Gojira5767]

Ok. I will give that a try. I told the guy that has been trying to tune my car and he noticed it as well when he tried to update the air fuel meter it wouldn't take it for him and gave him the same error.

[Gojira5767]

Update:

After some ECU pin testing for backup power loss ( Thanks to PaulR33 for the idea) i found that I had none. Swapped the relay with a known working spare and no change. Went to fuse checking for the 1000th time, and I actually found one of the fuses for Engine Control in the engine bay was blown. This was a recent occurence, because I have been checking them periodically. After replacing that one, I continued to re-initialize the FC and re-load my map and settings. Things were looking better b/c the airflow write error didnt show up. I was in the process of cleaning the plugs and decide to check for spark for good measure and noticed no spark. I went back to the fuses for kicks and now the other Eng Cont. fuse was blown. I replaced that one and checked the other one, it was ok still. Spark came back at this point. Finally I was able to actually try and start the car with all of the settings saved in the FC and the car finally started! Now back to point A. Get the car tuned.

THANKS TO ALL FOR YOUR RESPONSES AND INPUT! This is the best source for Skyline owners needs!

And im not sure if anyone has found or linked this site, but I found some rather useful info on here:

http://richr34.wordpress.com/

[Gojira5767]

Hopefully this link will work.

[DVS JEZ]

Sounds raspy

[Gojira5767]

It is at a slightly higher rpm. I believe it to be due to a fuel issue because I don't know the correct injector lag time so I'm leaving that up to my tuner. My short little drive was my test to make sure there were no other issues that needed to be addressed before I get it tuned. It stayed on the rich side during that sound and i know that my plugs were a little fouled from earlier testing. New ones going in asap for safe measure.

[paulr33]

glad its sorted

the ecu is never at fault

[Gojira5767]

You are correct my friend! Thanks again for the tips. Now all I have left to do is get it on a dyno hopefully in two weeks!

[Gojira5767]

So i have one final bug to work out. On my hand controller i have THRM highlighted. I have read that it should be reading 3.6-3.7 volts. It currently reads .06v. How do i fix this? The trac light is on also. Any ideas. I found a thread on here but the link won't get me to it so I'm not sure how they fixed the problem.