iac failure

[badhabits]

Iac code keeps coming up. The shop has tried 3 different ones. The ecu came from ecmlink with v3 already socketed and im running speed density. Also the fan was kicking on a little later than normal at 210 instead of 160. All coolant sensors were replaced. The idle is not consistend drive two miles and it wont catch an idle. If you raise tye idle in link to 1900rpms nothing still hangs around 400 to dead got a major headache. ..6bolt swap and a 96ecu they switched over to eprom.

Not a vacuum line or boost leak

 

[DanielMandon]

Iac code keeps coming up. Ive tried 3 different ones. The ecu came from ecmlink with v3 already socketed and im running speed density. Also the fan was kicking on a little later than normal at 210 instead of 160. All coolant sensors were replaced. The idle is not consistend drive two miles and it wont catch an idle. If you raise tye idle in link to 1900rpms nothing still hangs around 400 to dead got a major headache. ..6bolt swap and a 96ecu they switched over to eprom.

Not a vacuum line or boost leak

Why not just run the simulated IAC through DSMlink?

 

[badhabits]

I ended up doing this and is running 10x better. I asked the shop this they said it ran like shit so I waited and did it myself. .. im just scared changing too much stuff inexperienced.

When im in first gear it studders sometimes like a hard humping. Maybe 5-6mph. In a longer continued duration not acceleration but actually holding a slow roll with throttle slightly open.

I did notice a few things maybe you can help....
my rpms are 1350
Idle offset 0 (shouldnt it be 900less than idle)
And my injector size like 1515cc but they are 1100high impedance fic

If ylu could give some insight to help or explain why they have it this way itll help with anxiety I dont want to daily drive until im for sure they knew what they were doing since they never figured out my idle and said they have 10years dsm experience. Solid mechanically just tune is scaring me.

Thanks a lot for being cool in advanced I got bamboozled by a shop after a full build with them I didnt trust myself since this isnt my field of degree and its too much to chance and look where I am freaking screwing with crap cause it came back like crap.

The problem was never my iac they tried one of their garage ones and blew my ecu so I got stuck paying for their screw up and having to deal with it lucky me.