I have two issues I would like to get some quick opinions on.
Car is a 1989 ED6 with a GenII B16A (OBD1 Chipped P28, Neptune)

1. I have a AEM Wideband (Bosch Sensor). The gauge reads 13 AFR during WOT and 17 AFR during idle. However, under low load it is reading 11 AFR. Ideas? I literally have richer cruising AFRs than WOT.

2. My clutch starts to engage within the first inch or so. There is a little free play before it starts to engage. However, when fully pressed it doesn't seem like it engages sometimes. Would that be the cable or the clutch? Possibly poorly adjusted? I have room to adjust it on the cable. The cable is a stock D15B2 cable. The clutch is an ACT sprung clutch (iirc) with matching pressure plate.

Thanks for any help.

 

Update:

1. I got a CEL 43 (Fuel System) just the other day while driving. It was during 'spirited' driving. I replaced the fuel filter when I did a tune up not too long ago. So I bet it is the old O2 sensor that came with the manifold. Not too worried about it. I'll run my AEM to the ECU to input a narrow band signal. I didn't do this originally due to running OBD0 for awhile. I think this may solve my issue.

2. It only seems to happen at 7,000+ RPM from 1st to 2nd. I had no issue going from 2nd to 3rd. Maybe the trans has some wear on it and will need some work. I'll have to open it up to install LSD anyways, so I guess I'll research the wear parts and check it when the time comes.

If anyone has advice, post it up. Anything is helpful.