No problem starting it up. Afr is almost steady at 10.4. Even at cruise. On a speed density tune, no boost leaks, according to my tuner o2 sensors are good, tps, map. Also asked for a rom with a stock injectors to see if my id 1000 are faulty but still the same. Tested another fpr from another evo and still the same. Im running out of ideas on what to check. Sparkplugs changed it ran good for a minute, after WOT it went back to the issue of being rich. Almost the car has no response when i was trying to get home. No CEL either.
Any help? Thanks in advance. Also my sparkplug is missing one screw on each side(valve cover stripped) , could that cause it?
Mod list: 255 walbro/ id1000 running on 92 oct.
fp green.

 

Are you running a speed density tune or do you still have the MAF?

Noticed you are from Hawaii also. Howzit and welcome!

 

Aloha 😬. And yes speed density tune.

 

What MAP sensor are you using? Omni 4 bar?

 

Yes omni 4 bar. I tried to swap with a friend and it stayed the same.

 

A few questions:

1. What year is your Evo?
2. I'm assuming you are using Tephra V7. Which ROM are you using?
3. Was it running good after you got it tuned? When did it start to run funny?
4. Any other mods?

Funny how you and I have the same injectors and turbo on our Evos.

 

Answered^^

 

having the same issue did you ever figure this out...

 

How old is the tune?
Have you tried swapping the intake air temp sensor?

 

I haven’t...how can you tell a bad iat sensor

 

Measure the resistance. Across both pins. And then compare it to the gm iat resistance chart.

Resistance will correlate with a temperature.

So if its 80 degrees you need to have x amount of ohms

 

i got some logs...with car dead cold air temp read 68 and its in the 80s outside...dont know if thats normal...

 

I would try swapping the iat

 

but is it normal?

 

It depends where you've got it mounted.