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need help with 03 Caravan
#1213150
04/09/12 06:03 PM
04/09/12 06:03 PM
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Joined: Jan 2003
Posts: 1,894 N of Detroit
DaveDudek
OP
top fuel
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OP
top fuel
Joined: Jan 2003
Posts: 1,894
N of Detroit
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I'm having a problem with a 03 Dodge Caravan spitting out P0302 & P0172 codes. So far we did a complete tune up and swapped out the pcv valve. Still running like sh!t... Any recommendations?
Dave Dudek 1st Factory Stock legal car in the 10`s!!! [/b] FAST & Factory Stock Rules: www.fastraces.org FAST 69 Hemi RR 9.98@139
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Re: need help with 03 Caravan
[Re: DaveDudek]
#1213151
04/09/12 08:26 PM
04/09/12 08:26 PM
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Joined: Feb 2008
Posts: 992 Simi Valley, CA
MoparJ
super stock
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super stock
Joined: Feb 2008
Posts: 992
Simi Valley, CA
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Dave,
Do you have the definition of the codes? If not, here they are:
P0301 to P0312 — Cylinder misfire detected where the last two digits are the cylinder number, e.g. P0303 = cylinder #3.
•P0172 Fuel Trim System Rich Bank 1
It almost seems as if there is potentially an issue with an injector hanging open a bit much and fouling a plug, or something with the fuel pressure regulating system.
-Justin
2016 Ram 1500 Crew Cab: 5.7, 65RFE, 4.56 gears with locker, Hemifever tuned, AFE intake, 87mm throttle body, JBA headers, 3" Flowmaster exhaust, split to dual 2.5" exits. 13.57 best ET so far.
Searching for new A or B Body Project!
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Re: need help with 03 Caravan
[Re: MoparJ]
#1213152
04/09/12 10:07 PM
04/09/12 10:07 PM
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Joined: Dec 2010
Posts: 1,035 Missouri U.S.A.
71yelladustr
super stock
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super stock
Joined: Dec 2010
Posts: 1,035
Missouri U.S.A.
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Have you done a compression check on on the engine, especially cylinder #2? What ever is causing your misfire is likely causing the rich DTC. If compression is good and even with the others, id say you might have an injector issue as mentioned above.
392 gen III hemi on E-85 727 trans Dana 60 10.02@134
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Re: need help with 03 Caravan
[Re: 71yelladustr]
#1213153
04/09/12 11:07 PM
04/09/12 11:07 PM
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Joined: Jan 2003
Posts: 1,894 N of Detroit
DaveDudek
OP
top fuel
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OP
top fuel
Joined: Jan 2003
Posts: 1,894
N of Detroit
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Thanks! I'll do a compression test and go from there..
Dave Dudek 1st Factory Stock legal car in the 10`s!!! [/b] FAST & Factory Stock Rules: www.fastraces.org FAST 69 Hemi RR 9.98@139
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Re: need help with 03 Caravan
[Re: DaveDudek]
#1213154
04/09/12 11:30 PM
04/09/12 11:30 PM
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Joined: Feb 2008
Posts: 163 Winnipeg, MB
sreinheimer
member
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member
Joined: Feb 2008
Posts: 163
Winnipeg, MB
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A complete tune up as in plugs and wires? Check and make sure you have good spark out of the #2 coil.
69 Dodge Charger - first full resto
05 Dodge Magnum R/T
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Re: need help with 03 Caravan
[Re: DaveDudek]
#1213155
04/10/12 12:32 AM
04/10/12 12:32 AM
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Joined: Dec 2005
Posts: 799 Missouri
bb74swngr
mopar addict
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mopar addict
Joined: Dec 2005
Posts: 799
Missouri
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Had the same issues with my 05. The codes even sound familiar, although it's been some time. I did the plugs, wires, coil, and even the injector on the bad cylinder with no success. A great mechanic that just wouldn't give up found that the wiring harness that goes from the top front to the rear of the engine on the drivers side of the engine had worn through and was shorting out. It was rubbing on the sharp corner of the head where it bent around. Maybe? Ya never know...just might be a similar issue.
BigBlock 74 Swinger
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