code 42

badnat

New Member
Joined
Dec 12, 2004
i need help to track it down please help my car is falling and cant speed up:confused: the code is saying? something in the ignition family est, or prom in ecm, ign. module,my be computer,sparkplugs and wires
 
Other than possibly something silly in wiring harness, ECM or ign module comes to mind first. Make sure your plug wires arent breaking down. What wires are you using? These cars can be pretty rough on wires. especially on a '84/'85 setup on the passenger side going under the DP and Upipe.

Here read this for better understanding of EST system and the infamous code 42: http://www.gnttype.org/maint/malf.html#42
 
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