1992 Ford F 150 Code 998 Vref Tps Map Hego Ect Coming Pin 26 On Harness

1992 FORD F-150
120,000 MILES
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Code 998, no vref to tps, map, hego, or ect. No vref coming from pin 26 on harness. ECM failure? Or possible ground problem? Truck runs, but, very rich, stalls, etc. Checked/ cleaned chassis grounds, as well as ohmed pin 46 (ecm ground).
have continuity to ground. Anything else before I buy a new ecm?
Nov 26, 2012 at 5:30 PM
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ASEMASTER6371
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make sure the powers are there. if they are, yes you have a failed ecm

Roy
Nov 26, 2012 at 5:38 PM
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