Okay so every time im driving 55mph or higher for a constant amount of time ( like on the freeway ) my car runs extremely rich. the car starts sputtering and on my afc neo it reads In2 0.0000 under the senser check mode. And to stop it from doing that I have to push the clutch down for about 5-7 sec and let it idle then its fine. but about a minute later it dose the same thing. so I have to drive 50mph so it woldnt do that. Went to darkside and drew did a street tune. and he said that the only way to stop it from doing that is to get a DSM Link. I have a walbro 255lph. so is there any way i can stop it from doing this without getting a DSM Link. Oh its a 95 gst

Thanks Jeff

 

it could be alot of things.

what injectors are u runing?
do u have a wideband ? was the car street tuned with a wideband?
is ur maf hacked?

 

stock injectors. no wideband. and he tuned it with my afc neo. what do you mean by hacked

 

What was the last mod you did before this started happening.

 

that could be one of ur problems, u cant street tune a car without a wideband.

 

how do you street tune with out a wide band ... going off of knock ??? i would put it back to the settings that you had before not knowing what they did ... thats some CBR tuning right there

 

Of coarse you can tune with out a wideband. You cant get it as dead on not having one but you most certainly can tune.
It wasn't that long ago that in car wide bands were unheard off especially in the cheapo dsm market.
I tuned cars for years with no wide band.
You just have to really know what you are doing and have a feel for the car.


Need more info. When did it start doing this?

 

what i ment to say is , its not safe tuning without a wideband...

of course u can tune without a wideband, but how do u know what the airfuel ratio is?
its a risk tuning without one.

 

Sounds like you might have a cylinder 1 random misfire, I would like to meet up with you so I can see for myself.

 

what sensor is that?
what is it supposed to read?