Calibration Code Locations
http://www.oldfuelinjection.com/?p=17To remove the EEC, it may be necessary to either buckle the plastic wheelwell down using a heavy tool, or to remove several of its screws so it hangs down, allowing the EEC to slide forward & out of the firewall into the engine bay.
I haven't found any pattern to which trucks got the A-pillar sticker, but it appears to be ONLY after '92.
![eec93calcodes.jpg Calibration Code Locations
http://www.oldfuelinjection.com/?p=17
To remove the EEC, it may be necessary to either buckle the plastic wheelwell down using a heavy tool, or to remove several of its screws so it hangs down, allowing the EEC to slide forward & out of the firewall into the engine bay.
I haven't found any pattern to which trucks got the A-pillar sticker, but it appears to be ONLY after '92.
[url=https://www.supermotors.net/registry/media/892730][img]https://www.supermotors.net/getfile/892730/thumbnail/eecconnectors.jpg[/img][/url]](https://www.supermotors.net/getfile/901662/fullsize/eec93calcodes.jpg)