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Showing results for tags 'Sensors'.
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EvanBleecker posted a topic in 1990 to Present Legacy, Impreza, Outback, Forester, Baja, WRX&WrxSTI, SVXHowdy, All. I'm hoping to get some guidance/advice on where to go next. I've got a 99 Legacy Outback (30th Anniversary edition) that just flat out died while driving on the interstate. No previous problems or symptoms. Car turns over, just never starts. Note: The check engine light is not on. I've run the diagnostics, and gotten no codes. Here's what I've done: * I believe it's not getting spark (by spraying starting fluid and still nothing, also I can hear the fuel pump switch on and I pulled the fuel line and am getting output). * I put on a new coil pack - no change to the symptoms or status. * I took my ignitor and put it into another car. Other car performed fine. * I took out the crank sensor and the cam sensor to test them. They appear to be functioning fine. * I took out the ECU and put in one that I know to be fine - no change to the symptoms or status. *** Note: I found it weird that the car had the same symptoms regardless of whether an ECU was hooked up or not. Now, where do I go from here? Timing? Also, please know that about every fifty attempts at trying to start it, it sounds like it gets close to catching at the initial key-turn, but then nothing. Please help.
suprunner posted a topic in 1990 to Present Legacy, Impreza, Outback, Forester, Baja, WRX&WrxSTI, SVXHey everyone. 1996 Legacy Wagon L 260k 2000 EJ 251 with EJ25D heads 2000 4.11 5mt I'm having some problems that I'm not sure where to turn to. I have an idling issue. When at operating temperatures, my idle will be low (around 500) but not rough. When the lights are on, and I depress the brake, the lights will dim and the idle will drop and stumble. Never shut off. This problem has been present with two separate motors. First with an EJ25/EJ22 frankenmotor, and now my current one. I have swapped out my alternator (both read 14v), removed the crappily-installed uhaul trailer package, and created new grounds/cleaned up grounds in the engine bay. No change. I had the battery checked at the auto store, and it is said to be good. I've also cleaned the terminals/cables. I have suspicions that I'd like to see if they are valid/relevant. IIRC, this problem surfaced a couple years ago after I had replaced the then dead fuel pump. I did not replace it with an OEM pump. This one came from the local auto store. Around this time as well, the aftermarket radio quick working. The cd player works, and I can also use the auxiliary port, but no radio. I didn't listen to the radio at the time, so I never bothered. All fuses are good. Could either of these be related? Or, since this only happens when the engine is warm, could it be the coolant temp sensor? I believe I transferred the Crank/Cam/ Temp sensors from the last motor... Sometimes after a long drive on a warmer day, at idle it will sometimes idle up and down for a short period of time then normalize. Computer related? Thank you for your time. Any advice will be appreciated. Greg
Hello and sorry for the long message. I've been here for a while as a non-member reading other people's posts and following suggestions relating to my '95 Subaru Legacy Wagon (Automatic AWD). My Problems: Are very similar to other people having issues starting my car when hot or after being driven for long or short distance. Car works almost perfectly in the morning and at initial startup (no problems). Drive for 1 hour or so and then park to go inside to work with clients Finish up inside, then come back to leave and head home...car may start after 3 or 4 tries Car also dies after being driven for long distance locally in town or between communities in my areas. When this happens, I can usually pop the hood and wait having the car cool down for 30 or so mins to 1 hour and will crank right up allowing me to finish my drive home As I've mentioned, I've already implemented many changes and updates to my Legacy including many provided by Flatuous Blather suggestions (Thanks bunches) and other peoples suggestions, but still no go and my Legacy still runs intermittent. What seemed to help for a while and then same old same old includes: New Rebuilt Gas Pump (recently swapped 6/23 with used Outback pump with a larger motor) Fixed over two years ago when initial problems occurred...no go and did not help...multiple diagnostics by my mechanic (testing voltage levels, gas pressure, and misc...) New Power Steering Pump - leaking badly, but not directly related to my problems besides fluid getting into Spark Plug Holes and needing cleanup on motor and underneath New Battery, Cables, and Connectors also years ago and recently, but even when new did not fix my problems or improve condition New Spark Plugs and Cables and Coil Pack also replaced Almost every sensor (Coolant Temp, O2, and recently both Crank Position and Camshaft Positions sensors) has been pulled and replaced with new after-market and bone yard pulls (trying to keep costs down years ago) Many many bolts/nuts/connectors that were rusted or corroded (wow I know I live in Florida, but not that close to the beach) Starter replacement (years ago), pulled and bench tested working at Advanced Auto last year, and recent rebuild (finding corrosion on solenoid contacts) replacing with new contacts and plunger parts suggested and still no go at this state Added additional Grounding Cable from Battery to Starter and replaced Positive Battery Terminal to remove older unit and possible problems Starter Relay Addition (thanks for the help) - thought this worked well and only lasted a few hours before same problems...sometimes my car gets lucky. Quick Test and Never Fail button/switch (thanks again Flatuous and many others) - added to Starter Relay above and helps most of the time, but not perfect and only provides an additional option when Keyed on starting fails. Recent changes as of June 23, 2013, I swapped out from my 96 Legacy Outback U-Pull-It volunteer: Fuel Pump - much larger unit with short return line tubing into tank (no problems so far and much less noisy replacing my rebuilt unit swapped years ago) Cleaned/checked all Gas and Vacuum sender and return lines MAF Sensor and Idle Control Valve - swapped with used units that were cleaned and then reinstalled. Also noticed the MAF and ICV both working, but took a while for them to register and level out properly The ignitor - also used replacement...but so far so good! Other Notes: Legacy works and runs MUCH Much better in the winter time...Summers in Florida are miserable without A/C (thank God that is still working) What has not been replaced is the Ignition Switch and possible Neutral/Part Position Sensor, but if this was my problem...the Never Fail Button should resolve these issues Others have mentioned Clogged Catalytic Converters causing similar problems...but checking air pressure shows exhaust volumes as normal and similar to other vehicles Update - also forgot to mention on my previous post...NO Codes being reported...nothing, Nada, and suspect the 95 Legacy simply doesn't report very much Also of note, people have referenced if I tried spraying "small amount of starter fluid into the air intake" and I did this previously, but it only had minor effect, car would not start, and continue to run as normal. (referencing my igniter issues) My Legacy is running much better and I took it for a test drive 30 mins or so to warm things up and plan to wait a hour and test again when the problems usually occur with engine getting hot and then sitting for a hour or two. Update (possibly final update) - looks like one of the options above has finally solved my problem! I suspect my problem was finally either Fuel Pump or Ignitor related, but I'm not going to switch either now they are working just to test my theory. In the end, I went through a bunch of different suggestions, Fuel Sender issues, Clogged/Leaking Fuel/Vacuum Lines, Relays, Sensors, with the final changes listed above. As noted, I got he car hot this afternoon and let it sit as usual for one or two hours as when the issues usually occur. Car cranked and turned over starting without hesitation and on the first try, which never happened before after driving and then sitting for a couple of hours. I'll know more in the coming days when I drive and test things out on a full day of driving in town and will update if I notice anything. I'd also like to hear form everyone on what you think my final problems were??? Thank You and appreciate all the feedback and patience with my efforts and questions! Sorli...
subaru_egypt posted a topic in 1990 to Present Legacy, Impreza, Outback, Forester, Baja, WRX&WrxSTI, SVXAlsalam Alaykom and Good day, i am seeking for knowledge as it is not found anywhere around, i have several problem with my 97 Subaru Impreza "FWD-1.6" which i really love so much, and i was hoping to find some answers in here as even in the internet haven't much related to my car: when i am on the first gear, and raise my foot gently to make the car moves "without using acceleration" the whole engine shakes real bad, and to over come on this problem, i have to use the acceleration, which i don't consider normal as i have driven so much cars that could drive without using the acceleration, although there's a little shake in the other gears, but the first gear is the worst experience, so i was hoping for some answers regarding this matter, what trouble shooting i should do. i would like to have a full map for all the sensors for 97 Subaru Impreza "FWD-1.6" with the function of each one, and how to check on them. in winter, when its cold, the engine temp. decrease so much, and i don't know the reason for that. the engine sound is so loud, like lots of loud quick "tic-tic-tic-tic", is this normal in subaru world? what are the things that i suppose to check from time to time, and what should be replaced after exact time or km i really appreciate your time for just reading my problems, and i am hoping to hear from anyone that might help me, as you don't know how much this car means to me, it's love