Michael Walsh Posted January 11, 2015 Report Share Posted January 11, 2015 (edited) I own a 2008 Ford Edge SE, and my wife was driving the vehicle and the check engine light came on. Upon checking it, the vehicle was running very rough, and I also noticed it was having a tough time starting (I live in Philadelphia where the temperature has been hovering in the low/upper teens) so I'm not sure if this is related to the weather or the engine. I plugged in the diagnostic tester and the following codes appeared P0171, P0201, P0301. From what I reasereched online the codes mean the following: P0171 - this means that an oxygen sensor in bank 1 has detected a lean condition (too much oxygen in the exhaust).P0201 - means that the PCM detected a fault in the injector or the wiring to the injector. It monitors the injector and when the injector is activated, the PCM expects to see the voltage pulled "low" or close to zero. P0301 - means that the the car's computer has detected that one of the engine's cylinders is not firing properly. In this case it's cylinder #1. From what I can gather online the aforementioned codes might represent a plethora of possible problems. From faulty oxygen sensors, spark plugs, fuel injector, fuel filter, mass air flow sensor, etc. I was curious if all three of these codes show up at once would that limit the possibitity for the problem. Thanks, Mike Edited January 11, 2015 by Michael Walsh Quote Link to comment Share on other sites More sharing options...
akirby Posted January 11, 2015 Report Share Posted January 11, 2015 A faulty injector (P201) would cause the other two. Start with the injector. Quote Link to comment Share on other sites More sharing options...
WWWPerfA_ZN0W Posted January 11, 2015 Report Share Posted January 11, 2015 (edited) ^^ Would agree. Far passenger side (next to firewall/strut tower) = cylinder 1. http://www.obd-codes.com/p0201 Cylinder numbering: http://www.fordedgeforum.com/topic/9106-cylinder-numbering/ Firing order is 1-4-2-5-3-6. Stupid question, but have you ever run a bottle of Fuel Injection cleaner like Techron through the gas tank? Would be worth a shot. Also try taking off and reseating the electrical connector before moving forward to the injector itself. Edited January 11, 2015 by WWWPerfA_ZN0W Quote Link to comment Share on other sites More sharing options...
Michael Walsh Posted January 11, 2015 Author Report Share Posted January 11, 2015 I will give the fuel injection cleaner a shot. I am far from a mechanic, so I'll have to probably take it to the mechanic if that doesn't solve it. I just wanted an idea of what the problem might be, or if it was something simple causing the problem that I could possibly fix. Once I get the vehicle serviced, I'll post the results. Thanks for your help. Quote Link to comment Share on other sites More sharing options...
macbwt Posted January 11, 2015 Report Share Posted January 11, 2015 Spark plugs can also cause the problem with the O2 sensor as was my case. Plugs need to be changed and the O2 sensor. I had the same issue due to plugs that were in too long. Quote Link to comment Share on other sites More sharing options...
akirby Posted January 11, 2015 Report Share Posted January 11, 2015 Plug could cause the misfire and lean condition but the other code is specific to an injector problem. The spark plug should probably be changed though. Quote Link to comment Share on other sites More sharing options...
Michael Walsh Posted January 11, 2015 Author Report Share Posted January 11, 2015 Thanks for the feedback, I forgot to mention the vehicle has 58,000 miles, not sure if that changes anything. Quote Link to comment Share on other sites More sharing options...
akirby Posted January 11, 2015 Report Share Posted January 11, 2015 Nope Quote Link to comment Share on other sites More sharing options...
Michael Walsh Posted January 14, 2015 Author Report Share Posted January 14, 2015 Just wanted to post an update. I took the vehicle into the shop and they removed all the injectors and cleaned them and replaced the gaskets. Even though cylinder 1 was knocking the most, the other injectors were acting up they said. He said in the future some of the injectors might need to be replaced. I asked him the probability of me needing to replace the injectors, and he said it depends, he had some people come back in for replacements, and other times when it was never an issue again. He said after 3-4 gas fill ups to run some fuel injection cleaner through the vehicle. So far the vehicle has been running smoothly, but I have only had it back for a day. I want to thank you guys for the help as it was much appreciated. 1 Quote Link to comment Share on other sites More sharing options...
WWWPerfA_ZN0W Posted January 15, 2015 Report Share Posted January 15, 2015 Good luck! Hopefully there is no crapola built up in the gas tank/fuel lines, and the system stays trouble-free. I find that even with using Tier 1 gasoline, adding a FI cleaner like Techron once a year pays dividends. Quote Link to comment Share on other sites More sharing options...
macbwt Posted January 15, 2015 Report Share Posted January 15, 2015 Good gas is important. I rarely buy mom and pop gas and casey's gas. Most of the time I use Shell or Kwik Star tier one. This decision seems to have served me well over the miles of driving. I do add some injector cleaner on occasions when I feel I have reached a time to do so. 1 Quote Link to comment Share on other sites More sharing options...
Michael Walsh Posted March 3, 2015 Author Report Share Posted March 3, 2015 (edited) Well my luck has run out. The other day the check engine light came on and started to flash and the vehicle became very rough to drive as I could feel the engine misfiring. When I got home I plugged in my scanner and the following codes appeared, PO174, PO204, PO304, PO204 P. I'm assuming another injector is going bad. Is my best bet is to have all the injectors replaced? I see from the feedback above that it would be wise to change the plugs as well. Also is the correct part number for a fuel injector for 2008 Ford Edge SE, CM-5132? I look forward to your feedback and suggestions. Thanks, Mike Edited March 3, 2015 by Michael Walsh Quote Link to comment Share on other sites More sharing options...
WWWPerfA_ZN0W Posted March 3, 2015 Report Share Posted March 3, 2015 (edited) Interesting that the fault/lean code/misfire has moved over to cylinder 4 (radiator side bank, leftmost/furthest from battery). How much fuel injection cleaner/hom many tanks has it been since last report? Wat is the odometer reading on the Edge? It is also a possibility that the coils are starting to go, which eventually winds up frying the PCM or vice versa. This is a more frequent occurrence with the Edge than failed injectors (7T4Z-9F593-A / CM-5132) or failed spark plugs. Fuel Injector related parts: http://www.fordpartsgiant.com/parts-list/2007-ford-edge/fuel-injectors-and-pipes.html Ignition Coil related parts: http://www.fordpartsgiant.com/parts-list/2007-ford-edge/ignition-coil-and-wires-spark-plugs.html tsb13-04-17 2007-08 Edge MIL ON WITH DTCS - P0351, P0352, P0353, P0354, P0355, AND-OR P0356 - BUILT ON OR BEFORE 3-1-2008.pdf Edited March 3, 2015 by WWWPerfA_ZN0W Quote Link to comment Share on other sites More sharing options...
Michael Walsh Posted March 3, 2015 Author Report Share Posted March 3, 2015 (edited) The odometer reading is roughly 59,000 miles. After getting the vehicle back I waited after about 2 fill ups before I added the fuel injector cleaner. Overall I've probably filled the tank up about 4-6 times since I got the vehicle back from service. About 10 days ago I had my scheduled oil change. Currently the check engine light is on, but is not flashing. Is there anyway for a mechanic to diagnosis if this is ignition coil, fuel injector, or spark plug issue? Edited March 3, 2015 by Michael Walsh Quote Link to comment Share on other sites More sharing options...
WWWPerfA_ZN0W Posted March 3, 2015 Report Share Posted March 3, 2015 Should be pretty straightforward for a mechanic to diagnose those 3 elements. Doing a visual inspection for things like carbon tracking, cracked boots, etc. will diagnose the coil. Resistance tests will diagnose fuel injector firing. Checking plug gap will tell you if the gap is too wide for the PCM/ignition system to compensate for. These are just the initial checkpoints. 1 Quote Link to comment Share on other sites More sharing options...
macbwt Posted March 3, 2015 Report Share Posted March 3, 2015 I also see some other issues that are very possible and contributing to your problems. The mileage or yearly driving is only amounting to just north of 8K miles a year. Do you used Gasohol? Alcohol in fuel is very corrosive and with it sitting more than running this can lead to corrosion not only in your fuel tank but in the other components absorbiing water and causing tons of issues. My opionon, but I am willing to say this vehicle needs to hit the highway for a good run once in a while. Quote Link to comment Share on other sites More sharing options...
Michael Walsh Posted March 3, 2015 Author Report Share Posted March 3, 2015 I purchased the Edge in February of 2010 with 10,500 miles on it. Doing some quick math, I've been averaging about 9,500 miles per year with it. I actually don't use Gasohol. I guess my best bet at the moment will be to take it into the shop and have them run a diagnostic test on it and try to pinpoint the issue. Quote Link to comment Share on other sites More sharing options...
akirby Posted March 3, 2015 Report Share Posted March 3, 2015 Are you saying you use 100% gasoline, not E-10? That's pretty hard to find nowadays. Maybe you're thinking about E-85? Quote Link to comment Share on other sites More sharing options...
Michael Walsh Posted March 3, 2015 Author Report Share Posted March 3, 2015 Are you saying you use 100% gasoline, not E-10? That's pretty hard to find nowadays. Maybe you're thinking about E-85? I'm sorry, I wasn't sure was Gasohol was, I thought it was additive of some sort, as you can tell my knowledge of cars is very limited. When I fill up my Edge I have been using mid-grade gasoline which is 89 I believe, and I usually fill my Edge at up at either BP or Sunuco gas stations. Sorry for the mix-up. Quote Link to comment Share on other sites More sharing options...
akirby Posted March 3, 2015 Report Share Posted March 3, 2015 Then you are definitely running E-10 - 90% gasoline, 10% ethanol. Quote Link to comment Share on other sites More sharing options...
macbwt Posted March 4, 2015 Report Share Posted March 4, 2015 You need a good mech to test it and drill down to find the problem. 1 Quote Link to comment Share on other sites More sharing options...
denfesmire Posted April 15, 2015 Report Share Posted April 15, 2015 Michael, I see it has been a few months since your last post. I have the exact issue with my 07' SE (65k miles). What did you ever figure out with your 08'? My mechanic is saying a PCM but I contacted a PCM repair company and they feel it is something else, maybe injector related?? Quote Link to comment Share on other sites More sharing options...
Michael Walsh Posted April 23, 2015 Author Report Share Posted April 23, 2015 I'm actually taking my Edge to the shop this weekend. It's a weird situation as my check engine light goes on and off but the vehicle doesn't misfire at all lately. I'm going to a new mechanic as the one I had moved away, so I'm hopeful that he'll be able to give me some solid answers. Once I find out anything, I'll relay any information I get to this message board. Quote Link to comment Share on other sites More sharing options...
Michael Walsh Posted May 8, 2015 Author Report Share Posted May 8, 2015 (edited) Just wanted to give everyone an update. It seems a coil was the issue. I took it into the shop and they replaced the bad coil and that has seem to have done the trick. I've had my Edge back for a about 3 weeks with no check engine light on and she seems to be running backing to normal. Again thanks for the help. Edited May 8, 2015 by Michael Walsh 2 Quote Link to comment Share on other sites More sharing options...
WWWPerfA_ZN0W Posted May 8, 2015 Report Share Posted May 8, 2015 So was it the suspect cylinder 1 coil? Quote Link to comment Share on other sites More sharing options...
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