Dies at idle help
Ok so I have a 1990 ranger 2.3 dual plugs
The truck will not stay on on idle. It idles really low around 400rpm it stalls out and won't stay running. It runs fine but when stopped or left idling it stalls.
I've cleaned out throttle body over three times. Maf sensor seems fine. Idle air control valve and sensor were cleaned and replaced by used ones 3 times. No difference
Need help what could it be?? O2 sensor indicates system lean...could this b causing it to stall?
1990 ford ranger 2.3L
1999 Ford Ranger 2.5l