car hits a wall in third, not fuelcut

[dboyle23]

Searched but didn't see anything similar.

At around halfway through third gear at WOT I am getting some serious issues. The car feels like it hits wall, similar to fuel cut, but not as hard.

I have just done a vrsf fmic install along with fic 750's. I have the car tuned currently only for injector size and latency via ecuflash. Wideband is reading 10.5 the whole time (which is what I have it set for in ecuflash). Running a 14b/7cm housing at 16 psi on a 1g bov.

It was doing this before when I had some other 660's in. I got rid of them though because I kept getting a misfire in whichever cylinder a certain injector was in, so I thought it was clogged, causing the problem. But apparently not.

I finally got my laptop to operate properly with evoscan again so I am going to do some logs, what should I be logging/looking for?

Any other ideas?

Also, IDK if this helps but, when I start the car, it needs to warm up for 30-60 seconds in order to operate properly. Otherwise the car sputters a little when it starts moving and the readings on the WB are quite lean (16-18).

 

[97-gst]

are you running coil on plug? IF not I would try to change the plugs and wires If you havent did so already. I was running a coil on plug setup that kept throwing misfire codes and causing it to buck under accerlation and sputter, swapped that out with a new one and it ran fine.

 

[Dsmkauai]

Where's your upgrade for the fuel pump is my ? and if not, well why not, but do you at least have the stocker rewired? And for the starting issue sounds like your wideband is heating up within those 30-60 seconds. So I wouldn't start driving till its ready and the car idles properly.

 

[dboyle23]

I am running a walbro 255. Also, I am not coil on plug and I have newish plugs in, maybe 5 months old.
The wires I have never replaced. I would guess they have around 30k miles on them.

 

[viperlp01]

Fuel cut is caused by injector duty cycle. Verify the IDCs are in check and if they are it is a spark issue if the wideband is reading correctly

 

[dboyle23]

Thanks viper, you gave me some things to look at.