ThosL Posted September 7, 2019 Share Posted September 7, 2019 This hasn't happened in a while; this morning when not letting the 96 2.2 warm up, I pulled out and a mile down the road ascending a hill a loss of power with CEL. I had to pull over for around a minute then it was OK. There has been no CEL code for a while. Any thoughts on sensors that could be to blame? I changed out the MAF sensor a couple years ago. Link to comment Share on other sites More sharing options...
forester2002s Posted September 7, 2019 Share Posted September 7, 2019 What was the CEL? A scanner may show it as a 'pending' CEL. 1 Link to comment Share on other sites More sharing options...
1 Lucky Texan Posted September 7, 2019 Share Posted September 7, 2019 any chance you had a little water in the tank? Condensation on plug wires? maybe cracked IACV hose? Link to comment Share on other sites More sharing options...
el_freddo Posted September 7, 2019 Share Posted September 7, 2019 Read the stored codes with the test connectors. That’ll be your starting point. Cheers Bennie Link to comment Share on other sites More sharing options...
ThosL Posted September 7, 2019 Author Share Posted September 7, 2019 (edited) Flashing CEL; it hadn't happened in a while. Gas was low but don't think that caused it, there were a couple gallons in the tank I think. I think I've gotten a coolant temp sensor or something before. I have to go to Auto Zone for a code read. The pattern has been periodically trying to accelerate uphill, engine loses power and stalls out with flashing CEL. Goes back to normal after pulling off for a minute. Edited September 7, 2019 by ThosL Link to comment Share on other sites More sharing options...
el_freddo Posted September 7, 2019 Share Posted September 7, 2019 Near the steering column behind the kick panel above the driver’s feet are two black plug with a single wire each. Plug these together, turn the ignition to the ON position without the engine running. Watch the check engine light - long flash = value of ten, short flash = value of one. The ECU will cycle through all stored codes. So once you’ve got them recorded on paper and you’re re-reading them innthe flashing CEL you know you’ve got them all. If there are no stored codes, you’ll have a series of single flashes that tells you the ECU area designation/market. You can then look up these codes to find out what they are. My bet is the IACV is the culprit. Cheers Bennie Link to comment Share on other sites More sharing options...
ThosL Posted September 8, 2019 Author Share Posted September 8, 2019 CEL went off next drive. Could be gas issue. Link to comment Share on other sites More sharing options...
el_freddo Posted September 8, 2019 Share Posted September 8, 2019 10 hours ago, ThosL said: CEL went off next drive. Could be gas issue. CEL typically doesn’t come on due to a fuel issue. If you’ve got bad fuel the exu will pull timing. But if you’ve got an injector issue it could throw a CEL, this is why you need to check the codes - and you don’t need a scanner to do it either! Cheers Bennie Link to comment Share on other sites More sharing options...
brus brother Posted September 8, 2019 Share Posted September 8, 2019 (edited) Gravity is inescapable. Going up a hill, loss of power might be a clogged cat converter? Pieces of medium shifting to restrict flow. Edited September 8, 2019 by brus brother Link to comment Share on other sites More sharing options...
3Pin Posted September 8, 2019 Share Posted September 8, 2019 I bought a Panlong mini obdII reader on amazon for $10.00 and then I use the torque engine management diagnostic software for android. There is a free version and one for like 2.00. I bought the sw as it was cheap and I felt worth it. Saves you many a trip to the parts store for a scan. Link to comment Share on other sites More sharing options...
Mike104 Posted September 9, 2019 Share Posted September 9, 2019 Flashing CEL usually means a misfire. Could be plugs/wires/coil. Subaru's are fussy for NGK plugs and NGK or Subaru wires. If possible get an OEM coil from a pull and pay yard if available. Aftermarket coils don't last. Link to comment Share on other sites More sharing options...
ThosL Posted September 11, 2019 Author Share Posted September 11, 2019 Wires, plugs and coil are good and recent, that is not it. Could be fuel injector or sensor as others suggested. Link to comment Share on other sites More sharing options...
idosubaru Posted September 11, 2019 Share Posted September 11, 2019 Flashing CEL means multiple cylinder misfire. You have 2 or more misfires. There are cheap scanners so you never have to go anywhere. They pay for themselves in gas alone with a couple uses, not too mention time and quicker diagnostics. Check timing belt, tensioner, and pulleys Check plugs and wires. Coil pack - it can be tested and knowing which cylinders are misfiring can help point that direction. Link to comment Share on other sites More sharing options...
heartless Posted September 11, 2019 Share Posted September 11, 2019 13 hours ago, ThosL said: Wires, plugs and coil are good and recent, that is not it. Could be fuel injector or sensor as others suggested. what brand(s)?? It DOES matter. Link to comment Share on other sites More sharing options...
logic23 Posted September 12, 2019 Share Posted September 12, 2019 99% of the time miss-fires are bad wires. Use NGK the ones you get at autozone and the likes are junk. Next go after plugs. Also check the coil terminals for corrosion. They should be bright Link to comment Share on other sites More sharing options...
logic23 Posted September 12, 2019 Share Posted September 12, 2019 If you got a coil from Autozone that could be the issue too. The aftermarket ones they sell are junk. You are better with a used Subaru one. I have worked on Subarus only for 14 years and have only replaced a couple. They had burnt terminals from crappy wire sets being installed. 2 Link to comment Share on other sites More sharing options...
Toadspit Posted September 15, 2019 Share Posted September 15, 2019 Misfire in bank three can indicate a bad knock sensor but generally when I have seen performance issues that involved flashing CEL it was either a bad fuel injector or wiring to an injector. You can use alligator clips and wire to run 12v to them from the battery to test or even to back flush them with carburetor cleaner. Link to comment Share on other sites More sharing options...
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