There is no spark, no injection pulse, no fuel pump pulse from the ecu. the battery icon appears very weak to the dashboard while it is full.
Clean and retight well your battery connectors
Posted on Apr 23, 2014
Testimonial: "Thank you very much for the interest you accord to me. And this allow me to tell you that i cleaned and tighted my battery connectors but no change.I took off the Ecu, the relays, cleaned all fuses but no change. When i took off the Ecu and all relays,there were only 2 icons appeared: for the battrey(weak)and for the engine oil pressure(strong)"
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Posted on Jan 02, 2017
Jun 14, 2015 | 1987 Ford Ranger
Here are the most common symptoms of a bad ECU:
There is a really good article all about crankshaft positioning sensors: http://www.doityourself.com/stry/warning-signs-of-a-bad-crankshaft-position-sensor
I hope that helps you out!
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injector pulse is just controlled by the ecm or computer as some would say,u said u replaced wires? did u have a fire or melt wires? ecm is known to go bad on these,had a few of these trucks back in the day.
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