FilthyMonkey187
New member
ok, so i am looking at buying a BONE STOCK (not returned, but never modified)2005 STI with 79,000 miles for 14k from a guy who says there are some fault codes that come up. Below are the list of codes:
P0442 - evap emissions
P0031 - CYL 4 misfire
P0304 - Heater CNTRL circuit low bank 1
P2097 - post cat fuel trim too rich bank 1
After doing some research i have found that quite possibly an O2 sensor would take care of the second two which is not a big deal. my concern after is the P0031 code, the cyl 4 misifre. after doing some reading and talking with [MENTION=662]Batmobile_Engage[/MENTION], i have found that this could pose the biggest issue. some of the things i read were:
-harmonic balancer - due to the fact it is trying to compensate for a bad coil
-bad plugs or wires or both
-bad coil pack
-faulty injector
-failing ringland
i asked for a compression test, but have not yet heard back from the guy. (emailed like 10 minutes ago) would like some opinions, thoughts, suggestions.
also, as for the evap code, i know it could hopefully be just the fuel cap, but also read that the evap canister could be bad, the wiring going into the canister could be corroded due to the fact it sits upward and right next to the rear driver side wheel. pressure control solenoid....again, thought, suggestions, opinions.
I appreciate all of you, hopefully this is not a stupid question. lol
P0442 - evap emissions
P0031 - CYL 4 misfire
P0304 - Heater CNTRL circuit low bank 1
P2097 - post cat fuel trim too rich bank 1
After doing some research i have found that quite possibly an O2 sensor would take care of the second two which is not a big deal. my concern after is the P0031 code, the cyl 4 misifre. after doing some reading and talking with [MENTION=662]Batmobile_Engage[/MENTION], i have found that this could pose the biggest issue. some of the things i read were:
-harmonic balancer - due to the fact it is trying to compensate for a bad coil
-bad plugs or wires or both
-bad coil pack
-faulty injector
-failing ringland
i asked for a compression test, but have not yet heard back from the guy. (emailed like 10 minutes ago) would like some opinions, thoughts, suggestions.
also, as for the evap code, i know it could hopefully be just the fuel cap, but also read that the evap canister could be bad, the wiring going into the canister could be corroded due to the fact it sits upward and right next to the rear driver side wheel. pressure control solenoid....again, thought, suggestions, opinions.
I appreciate all of you, hopefully this is not a stupid question. lol