Having an issue with my 91 Diablo and was wondering if anyone else can relate to this or suggest a fix.
My warning lights are on, checked the code, flashes twice indicating the Lambda sensor detected weak fuel mixture.
My major problem is that in the range of approx 2500-2900 rpm I experiencing a little bogging does anyone else have the same problem?
If i just sweep past that range the car seems to run fine, but that range is 30 miles an hour, kind of hard to avoid that rpm.
I experience it in 1st and 2nd a little in 3rd but not 4th or 5th at the rpm range
I have Borla exhaust and no cats.
Have changed the o2 sensor, cap, rotor, plugs and the TPS. Put in K&N filters.
My next step is to put o2 sensor spacers in to lift the o2s out of the stream a bit to try and get rid of the warning lights.

Any suggestions or comments would be great
Thanks
Phil