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P0307 Diagnostic Trouble Code Discussion for October 2019

Cylinder 7 Misfire Detected


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Trouble Ticket Help Requests for DTC P0307
Help Request Posted
2004 Dodge Ram 1500 ST 5.7L Misfire VIN: 1D7HU18D54
P0307: Cylinder 7 misfire. This truck came in running very poorly. Had all the codes listed. Testing was performed on the EGR and #7 injector. Both were replaced and now it no longer sets codes for them. It still shows misfires on #7 but only after the rpms are raised. If left to id...
October 29, 2019
2009 Lexus LX570 5.7L Misfire VIN: JTJHY00W49
P0307: Misfire on Cyl 7. ... P0305 & P0307 misfire on #5 & 7, P0101 MAF, P0171 & P0174 Lean on Bank 1 & 2, P0430 Catalytic Bank 2.) It runs rough ONLY when cold and runs perfect after it warms up. I thought this was a classic bad MAF a...
October 30, 2019