Help please, Misfire
#12
10-11-2018, 04:54 PM
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Location: Allendale michigan
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Update
Alright so, my 04 dodge ram 1500 5.7 Hemi quad cab with a colt air intake, intake manifold spacer on a remanufactured engine 4000 miles ago which is misfiring. I have took out the good ol code scanner. The original codes were system too rich and miss in cylinder 3. I checked sparks, wires and coils all checked out. Did a swap of everything to a different cylinder. Still had miss in 3. Two days later it went from miss in 3 to random miss. Now it has o2 high voltage and low voltage, random miss and every now and then rich system. I have checked egr, replaced crank sensor, checked injectors, checked all fuses and relays, spark, wires, coils, alternator, battery, throttle body, and all connectors to those items. Everything checked out. I am not sure where or what to check next. Also it all started when when cold driving and refused to shift into a higher gear then stalled out. Recallebrated throttle then started to miss.
#13
10-11-2018, 06:16 PM
#14
10-18-2018, 05:55 PM
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#15
10-18-2018, 06:01 PM
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so I simply pulled the connectors on both my pre cat o2's. Truck runs better but still throws miss in 3. So I am thinking o2 and something else combined is causing the issue
#16
10-18-2018, 06:08 PM
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Alright so, my 04 dodge ram 1500 5.7 Hemi quad cab with a colt air intake, intake manifold spacer on a remanufactured engine 4000 miles ago which is misfiring. I have took out the good ol code scanner. The original codes were system too rich and miss in cylinder 3. I checked sparks, wires and coils all checked out. Did a swap of everything to a different cylinder. Still had miss in 3. Two days later it went from miss in 3 to random miss. Now it has o2 high voltage and low voltage, random miss and every now and then rich system. I have checked egr, replaced crank sensor, checked injectors, checked all fuses and relays, spark, wires, coils, alternator, battery, throttle body, and all connectors to those items. Everything checked out. I am not sure where or what to check next. Also it all started when when cold driving and refused to shift into a higher gear then stalled out. Recallebrated throttle then started to miss.
truck now only shows two codes p0174 and p0175 misfire went away a few days ago and has not shown up since.
truck now only shows two codes p0174 and p0175 misfire went away a few days ago and has not shown up since.