I have a gsr swap in a 92 vx and it just recently started to act weird. When it turns on it s kind of sluggish until it warms up and then it feels like it cuts off fuel in WOT. I read up on similar problems in the archives and it seems to me that it could be the O2 sensor. Any input would be great.

 

a failure o2 sensor might not cause CEL on. but have u check the vacume leak. throttle cable too tight or loose? iacv clogged ?

 

I just purchased the car last friday and it already had the swap in. The car ran fine and I ran it hard on the weekend. The problem just started yesterday. And also the check engine light was already on. I don't know if this helps but when the car is running the cel dims in and out.

 

u can perform a CEL while the car is running or at idel. probaly knock sensor.do u know what kind of ecu u are running ?

https://honda-tech.com/zerothread/1901557

 

Thanks crazyguy, I actually printed out that same cel tech. I was messing with the different plugs and I think i got it working again. I appreciate the help.