Code p04,fo4 - Maintenance & Troubleshooting discussion in Forkliftaction's forums

Discussion:
Code p04,fo4

I have a mcugl02f36lv it cranks but not starting,I'm getting fuel and spark code fo4 and p04 displays on dash

Posted 15 May 2018 20:37
By roc109
joined 2 Nov'09 - 51 messages
New York, United States

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I checked all the wiring from ecm to relay box and relays and it is not a problem. I just checked the green line of the white line coming from the ecu and it does not bring any voltage or signal to the relay box to activate the relays.

Posted 1 Feb 2021 02:39
By Afshin_Ghafoori
joined 1 Feb'21 - 5 messages
Iran, Islamic Republic Of

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What's a bonnet switch,I replaced the key switch,swapped dash cluster.unit cranks and run for about a sec,

Posted 16 May 2018 10:12
By roc109
joined 2 Nov'09 - 51 messages
New York, United States

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Communication error check the bonnet switch

Posted 15 May 2018 23:19
By alanmitsi
joined 8 Aug'13 - 151 messages
essex, United Kingdom

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