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P0303 Diagnostic Trouble Code Discussion for July 2008

Cylinder 3 Misfire Detected


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Trouble Ticket Help Requests for DTC P0303
Help Request Posted
1998 Ford E-150 Econoline 4.2L Misfire, MIL Lamp on VIN: 1FDRE1426W
P0303: misfire cylinder 3. During testing I found that misfire goes away if I disconnect EGR solonoid.I am unfamiliar with the egr passages on this motor.It seems to me that cylinder #3 is getting the majority of the EGR flow essentially killing that cylinder.The DPFE is functional and ...
July 16, 2008
2002 Jaguar X-Type 3.0L Hesitation, Misfire VIN: SAJEA51C62
P0303: cyl. 3. terrible hesitation upon acceleration due to misfires of cyl. 1 3&5. replaced fuel filt. that was stopped up, air filt. that was dirty and spark plugs that looked good (al 6 looked good). car runs good as long as you drive gently but on heavy or simi heavy...
July 24, 2008
2004 Lexus ES330 3.3L MIL Lamp on VIN: JYHBA30GX4
P0303: Cylinder 3 Misfire Detected. car came in orig. for p0136, o2 b1 s2 curcuit malf. monitored sensor and found volts sstaying at 0.015v. o2 b2s2 reading 0.700. figured had bad o2 so replaced, cleared code and sent on its way. car came back 2 days later with same code,now has code for #3 &...
July 24, 2008
1999 Ford Escort ZX2 Hot Coupe 2.0L MIL Lamp on VIN: 3FAKP1138X
P0303: missfire cylinder 3. Vehicle came into shop running hot pushing coolant out of overflow and mil light flashing. I have replaced thermostat but have not run vehicle yet. Im trying to diagnose po302, po303, po300. Mil starts flashing after vehicle warms up. It does not seem to have ...
July 25, 2008
2004 Lexus ES330 3.3L MIL Lamp on VIN: JYHBA30GX4
P0303: Cylinder 3 Misfire Detected. car came in orig. for p0136, o2 b1 s2 curcuit malf. monitored sensor and found volts sstaying at 0.015v. o2 b2s2 reading 0.700. figured had bad o2 so replaced, cleared code and sent on its way. car came back 2 days later with same code,now has code for #3 &...
July 25, 2008
2001 Mercedes-Benz ML320 3.2L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 4JGAB54E41
P0303: Cylinder 3 Misfire. This ML320 has a rough idle and sometimes hesitation on acceleration from a stop . At cruise or WOT there are no problems and seems to have good power . Most times it has a notable miss / rough idle which varies in degree . The truck was supposedly sitting for...
July 26, 2008
1998 Ford E-150 Econoline 4.2L Misfire, MIL Lamp on VIN: 1FDRE1426W
P0303: misfire cylinder 3. During testing I found that misfire goes away if I disconnect EGR solonoid.I am unfamiliar with the egr passages on this motor.It seems to me that cylinder #3 is getting the majority of the EGR flow essentially killing that cylinder.The DPFE is functional and ...
July 16, 2008
2002 Jaguar X-Type 3.0L Hesitation, Misfire VIN: SAJEA51C62
P0303: cyl. 3. terrible hesitation upon acceleration due to misfires of cyl. 1 3&5. replaced fuel filt. that was stopped up, air filt. that was dirty and spark plugs that looked good (al 6 looked good). car runs good as long as you drive gently but on heavy or simi heavy...
July 24, 2008
2004 Lexus ES330 3.3L MIL Lamp on VIN: JYHBA30GX4
P0303: Cylinder 3 Misfire Detected. car came in orig. for p0136, o2 b1 s2 curcuit malf. monitored sensor and found volts sstaying at 0.015v. o2 b2s2 reading 0.700. figured had bad o2 so replaced, cleared code and sent on its way. car came back 2 days later with same code,now has code for #3 &...
July 24, 2008
1999 Ford Escort ZX2 Hot Coupe 2.0L MIL Lamp on VIN: 3FAKP1138X
P0303: missfire cylinder 3. Vehicle came into shop running hot pushing coolant out of overflow and mil light flashing. I have replaced thermostat but have not run vehicle yet. Im trying to diagnose po302, po303, po300. Mil starts flashing after vehicle warms up. It does not seem to have ...
July 25, 2008
2004 Lexus ES330 3.3L MIL Lamp on VIN: JYHBA30GX4
P0303: Cylinder 3 Misfire Detected. car came in orig. for p0136, o2 b1 s2 curcuit malf. monitored sensor and found volts sstaying at 0.015v. o2 b2s2 reading 0.700. figured had bad o2 so replaced, cleared code and sent on its way. car came back 2 days later with same code,now has code for #3 &...
July 25, 2008
2001 Mercedes-Benz ML320 3.2L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 4JGAB54E41
P0303: Cylinder 3 Misfire. This ML320 has a rough idle and sometimes hesitation on acceleration from a stop . At cruise or WOT there are no problems and seems to have good power . Most times it has a notable miss / rough idle which varies in degree . The truck was supposedly sitting for...
July 26, 2008