Low Alternator Voltage ECU problem
#1
Low Alternator Voltage ECU problem
Hi,
ECU gives check engine light with the 'low alternator voltage' problem on a Bugeye WRX.
Battery replaced and now holds charge, alternator is fine - checked battery with and without ignition on with a multimeter. 12v-ish without ignition and 13.5v approx with iginition.
Car starts fine after long periods so can't be a battery issue.
Any ideas guys?!
ECU gives check engine light with the 'low alternator voltage' problem on a Bugeye WRX.
Battery replaced and now holds charge, alternator is fine - checked battery with and without ignition on with a multimeter. 12v-ish without ignition and 13.5v approx with iginition.
Car starts fine after long periods so can't be a battery issue.
Any ideas guys?!
#3
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So the battery voltage is raising with ignition on? or is that the wrong way round? or do you mean with engine running?
Whats the vottage at battery with engine running and lights on
Whats the vottage at battery with engine running and lights on
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