I pulled the KOEO codes on my 86 b2 but i'm having trouble understanding them. The koeo codes are 34 and 67, the memory codes are 63 and 32. I read the odb1 2digit codes listed here and they are as follows:
34 EVP - (R) EGR did not respond properly during test - EVP
EVR - (O, R, M) EVP...