Bought my 80 in Nevada. Has all emissions accessories.
Problem is fast idle and check light. Don’t know how to pull codes.
Replaced torn air cleaner hose, replaced a few vacuum lines that were torn, replaced o2 sensors. Cleaned aic, checked afm, noticeable change from rough to smooth idle after replacing o2 sensors. That is where I am at. That pesky light continues to rent space in my mind. I have disconnected battery for a period longer than a half hour. Light does turn off then comes back after about 50 miles highway and some city driving.
Where to start trouble shooting?
Problem is fast idle and check light. Don’t know how to pull codes.
Replaced torn air cleaner hose, replaced a few vacuum lines that were torn, replaced o2 sensors. Cleaned aic, checked afm, noticeable change from rough to smooth idle after replacing o2 sensors. That is where I am at. That pesky light continues to rent space in my mind. I have disconnected battery for a period longer than a half hour. Light does turn off then comes back after about 50 miles highway and some city driving.
Where to start trouble shooting?