Question about Volvo S70
Codes po102, po172, po300, po304, po305 I have these codes on my car, I was wondering what they were so I could price the maintenance. Thank you.
Code p0102 refers to MAF/VAF sensor ---low input ===causes --wiring short to ground. MAF/VAF sensor
code po172 refers to system too rich --bank 1=== causes ---intake blocked --EVAP canister purge valve---fuel pressure ---HO2S sensor
code po random misfires ---plugs --wiring ---injectors--low compression
code po305 refers to cylinder 5 misfire detected ===causes --engine mechanical fault--ignition/ fuel system ---injector ---ECT/MAF
I would check that the air filter is not blocked first as it affects the MAF/VAF sensors . Have a fuel pressure system pressure test done
Posted on Feb 13, 2014
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Posted on Jan 02, 2017
P0304 means that cylinder 4 has a misfire and P0305 is a cylinder 5 misfire. What this means is you may have bad spark plugs, or bad plug wires, or you may need to replace your distributor cap and rotor. I would start with plugs and wires.
Posted on Oct 21, 2010
P0300 indicates "Random / Multiple Cylinder Misfire Detected
P0305 indicates " Cylinder 5 Misfire"
P2314 indicates "Ignition Coil E Secondary Circuit"
You don't say which "300" you have (300, 300 AWD, 300C, or 300C AWD) and there a 4 different engine choices between these models. All four engines share one common trait....they have individual coils on each plug.
Since I'm not sure of your specific vehicle, I'll go out on a limb here.
The 305 code mention cylinder 5, and the 2314 code mention coil E.
E is the fifth letter of the alphabet, so I'm guessing that the fifth cylinder coil is the culprit.
Of the 4 different engines, 2 are six cylinder and 2 are eight cylinder. The 2 six cylinder engines utilize the same plug coil and the same holds true for the 2 eight cylinder engines. In any event, a coil will probably cost in the neighborhood of $50 at you local parts store.
Hope this is of some help.
Posted on Dec 26, 2010
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