SirMyztiq
Member
The new 05 STi I got came with a APS CAI, COBB downpipe and Greddy EVO2 exhaust. It has a COBB radiator shroud and it has about 99500 miles. I'm planning on doing a full service soon by changing the fuel filter, spark plugs, tranny oil, rear diff oil, oil, oil filter and maybe even bleed the breaks. I'll probably also replace the timing belt.
For the fuel filter I'm going OEM.
Tranny oil is Motul Gear 300 75W90
Rear diff is Motul PA90
Spark Plugs I went with NGK One Step Cold Part 2309
Oil will be Rotella T6 synthetic and oil filter is OEM.(done)-- turned out the dealer had a "Mighty Guard" Oil filter and the oil was so...watery. I changed it pretty quick.
I havent decided if I should bleed the breaks or the timing belt.
I also recently received a complete set of injectors that fit my car(wrong part shipped)! I'm debating whether or not I should just replace them all.
What do you guys think about all this. Anything I'm missing or anything else you guys would recommend I check out? I'm actually researching replacing the fuel pump since I'm also replacing the fuel filter. I haven't found a concrete "yes or no" answer to whether it is proper that I get a Walbro at just Stage II.
Another issue I've had was that since going Stage II, I was getting a P0301- or misfire on 1. I reset the comp a couple of times and the code hasnt comeback There is also a PFFE error of which I have no idea what it means. She idles pretty rough, starts off at about 1000 RPM but then dwindles to the middle mark between 0 and 1000 which I believe is 500 RPM? and kinda settles there. She seems to be struggling on idle, not very steady, some shaking and the engine sounds like it is struggling a bit. Once I'm driving there isn't any noticeable loss of power. I haven't gotten the misfire CEl today, but now she is throwing a Evaporative Emissions Leak loose gas cap. I didnt write down the exact code. I tightened the gas cap a couple of times, reset the comp and it goes aways for a while but randomly shows up at highways speeds. Recently my exhaust hangers ripped off and I drove around without noticing until my GF pointed out that my exhaust was hanging and bouncing around. I wonder if that might have caused anything...
Anyways, I've looked at some threads about misfires but I don't feel like if I know the proper procedure on how to diagnose it since there isn't any clear steps posted anywhere. If there is I would appreciate it if you guided me in the right direction. Any ideas of what could be happening?
I'm hoping that once I do the overhaul of maintenance she shapes up, but I would like to find any other problems I have to consider so I can do it all in one weekend. I got 2 year insurance from the dealer I got her from but I would rather try to figure out if it is simple on my own as I have a high deductible anyways. If it is something more serious then...i hope its bad enough so they just give me a new engine!
Someone recommended that I check my fuel trims. He said that I might be looking at a vacuum leak somewhere. I did some data logging and well, I have no idea what I'm looking at:
One log:
https://docs.google.com/spreadsheet...hLdG1teXZQeVNxYWtOZTJEVE14aHhXZ3c&output=html
Most Recent Log:
https://docs.google.com/spreadsheet/pub?hl=en_US&hl=en_US&key=0AtK3KbA0DUhLdEY1VTVfVHAxekw0UTJmbEJ0QUc1Unc&output=html
I would appreciate any input from you guys on what all these numbers mean. I tried researching on how to do a datalog properly but no avail so I just took the car out for a spin. Any input would be appreciated it. The Recent Log was over a period where I drove on the streets and at the end got onto the highway at around 65-75mph. I got the parts I need to do my own vacuum leak tester tool. I must admit that I have no idea where I should check for leaks though. Pictures would be nice, I would also like to try that spraying starter fluid and checking for surges in case of a leak. I love DIY stuff. Just love it. Thank you guys in advance for the help and if there is anything you guys need to know more about please let me know. I want to have her in tip top shape. I probably should mention that the previous owner seemed to know what he was doing...except for the tires. It has "Sunew" tires on the front and "
michelins" at the back. What do you guys think about THAT setup? LOL
For the fuel filter I'm going OEM.
Tranny oil is Motul Gear 300 75W90
Rear diff is Motul PA90
Spark Plugs I went with NGK One Step Cold Part 2309
Oil will be Rotella T6 synthetic and oil filter is OEM.(done)-- turned out the dealer had a "Mighty Guard" Oil filter and the oil was so...watery. I changed it pretty quick.
I havent decided if I should bleed the breaks or the timing belt.
I also recently received a complete set of injectors that fit my car(wrong part shipped)! I'm debating whether or not I should just replace them all.
What do you guys think about all this. Anything I'm missing or anything else you guys would recommend I check out? I'm actually researching replacing the fuel pump since I'm also replacing the fuel filter. I haven't found a concrete "yes or no" answer to whether it is proper that I get a Walbro at just Stage II.
Another issue I've had was that since going Stage II, I was getting a P0301- or misfire on 1. I reset the comp a couple of times and the code hasnt comeback There is also a PFFE error of which I have no idea what it means. She idles pretty rough, starts off at about 1000 RPM but then dwindles to the middle mark between 0 and 1000 which I believe is 500 RPM? and kinda settles there. She seems to be struggling on idle, not very steady, some shaking and the engine sounds like it is struggling a bit. Once I'm driving there isn't any noticeable loss of power. I haven't gotten the misfire CEl today, but now she is throwing a Evaporative Emissions Leak loose gas cap. I didnt write down the exact code. I tightened the gas cap a couple of times, reset the comp and it goes aways for a while but randomly shows up at highways speeds. Recently my exhaust hangers ripped off and I drove around without noticing until my GF pointed out that my exhaust was hanging and bouncing around. I wonder if that might have caused anything...
Anyways, I've looked at some threads about misfires but I don't feel like if I know the proper procedure on how to diagnose it since there isn't any clear steps posted anywhere. If there is I would appreciate it if you guided me in the right direction. Any ideas of what could be happening?
I'm hoping that once I do the overhaul of maintenance she shapes up, but I would like to find any other problems I have to consider so I can do it all in one weekend. I got 2 year insurance from the dealer I got her from but I would rather try to figure out if it is simple on my own as I have a high deductible anyways. If it is something more serious then...i hope its bad enough so they just give me a new engine!
Someone recommended that I check my fuel trims. He said that I might be looking at a vacuum leak somewhere. I did some data logging and well, I have no idea what I'm looking at:
One log:
https://docs.google.com/spreadsheet...hLdG1teXZQeVNxYWtOZTJEVE14aHhXZ3c&output=html
Most Recent Log:
https://docs.google.com/spreadsheet/pub?hl=en_US&hl=en_US&key=0AtK3KbA0DUhLdEY1VTVfVHAxekw0UTJmbEJ0QUc1Unc&output=html
I would appreciate any input from you guys on what all these numbers mean. I tried researching on how to do a datalog properly but no avail so I just took the car out for a spin. Any input would be appreciated it. The Recent Log was over a period where I drove on the streets and at the end got onto the highway at around 65-75mph. I got the parts I need to do my own vacuum leak tester tool. I must admit that I have no idea where I should check for leaks though. Pictures would be nice, I would also like to try that spraying starter fluid and checking for surges in case of a leak. I love DIY stuff. Just love it. Thank you guys in advance for the help and if there is anything you guys need to know more about please let me know. I want to have her in tip top shape. I probably should mention that the previous owner seemed to know what he was doing...except for the tires. It has "Sunew" tires on the front and "
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