stalling issue with v3 would like help

[3kgt2nv]

so i installed link and set it for sd for my first start. i have no previous map to go off of. my mod list is up to date and car has had the mechanical and base timing set and checked with a timing light.

The issue i am having is I can start the car and it will idle fine but if i give it gas as the rpm's drop it stalls instantly. when i restart it, the car will idle surge like crazy and die out if i don't give it gas. The air fuel is at 14.7 - 15.3 at idle and timing is at about 12 deg. This happens both when the car is cold or hot and the coolant temp sensor is new and is also being monitored by aftermarket gauge. I also verified the iac is working thru link and tested the unit in another car with no issues.

My question is should i be looking for a mechanical issue or is this something with the tune. sorry i cant post a log at this time as the idle surge is so bad it cannot stay running long enough to capture a log other than rapidly changing values.

 

[MitsGray97]

Do you have a wideband? And Is your bov recirculated? Cause its most likely your air fuel. My car was doing the same and i was running too rich.

 

[johnovision27]

If you do have a WB and are using that in the location of your front O2, make sure you are "simulating narrowband operation" It's under the settings in ECMlink.

 

[3kgt2nv]

I do have a wideband and it is set to simulate the narrowband. The bov isnt recirculated but this issue is at idle as posted in the op. I am also running sd not a maf where the recirulation of the bov would be an issue.

 

[3kgt2nv]

still looking for help

 

[MitsGray97]

Check what your wideband reading is when you give gas and let off. ( so In the process of stalling).

 

[3kgt2nv]

stays pretty much at about 15ish even though its stalling. checked the wideband its reading correctly so the sensor is good.

 

[MitsGray97]

Does the wideband ever read anything else other then 14.7-15? It shoulda changed readings..

 

[3kgt2nv]

it does. when tested with brake clean in a rag it swings full rich and in open air runs full lean. when running with riding the gas we drove it around the block so no full power runs but saw dips to 9 and up to 16ish. with the stalling/surging we didnt want to try driving it to log due to concern for under lieing issue

 

[MitsGray97]

Post a log. Thatd probably make it a little easier to see whats going on

 

[3kgt2nv]

i want to change the oil first then ill get what log i can

 

[MitsGray97]

Yeah post one whenever you can. Itd be a way easier with a log.