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12-13-2018, 02:44 PM | #1 |
Scooby Newbie
Member#: 410282
Join Date: Jan 2015
Vehicle:2000 |
NO CODES EJ22 Hesitation Please Help
Alright everyone, Im really hoping someone can point me in the right direction.
I got in the car the first day it was cold here, I went to start it, no lights, then they gradually started to come on. Turned the key, got it to click, waited a minute more, and tried again. It turned over and started, ~13.5 volts when running. Drove it an hour, dead when I tried to start it 20 minutes later. THEN, I put a new battery in it, and it started right up, and still does, but would get to around 3500 or so, revs keep counting, but almost all acelleration stops. Thought it might be coil, replaced it, same thing. TPS read 3.7v at WOT, thought it was low, replaced it, same thing. Took off the fuel filter, whole buncha crap in there. Replaced it, also put on a new fuel pump and strainer, drive it, PULLS GREAT. Drive it for about 10 minutes, back to square one. Fuel in filter is still clean, strainer and pump are still clean. TL;DR: Hits almost a false limiter around 3.5/4k and I can cycle the key while I still have the pedal down and it will pull all the way to redline, then start acting stupid like 5 minutes later. What on earth can this be???? NO CODES!!! Yes the check engine light works. SSM also says nothing is wrong!!!!! 00' Impreza EJ22 Phase 2
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Last edited by Mukinabaht; 12-13-2018 at 02:46 PM. Reason: More Info Rec. |
12-13-2018, 06:27 PM | #2 |
Scooby Specialist
Member#: 80465
Join Date: Jan 2005
Chapter/Region:
RMIC
Location: Denver
Vehicle:2001 2.5RS Black Diamond Pearl |
TPS needs to be adjusted when replaced. Typically 0.45-0.55 V at 0% and ~4.5-5.0 V at 100%.
If the engine speed increases but vehicle speed does not, that points to a dying clutch. |
12-13-2018, 09:43 PM | #3 | |
Scooby Newbie
Member#: 410282
Join Date: Jan 2015
Vehicle:2000 |
Quote:
Clutch is not slipping, it would also harshly reengage on the way back down the revs and would not change when I cycle the key. |
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12-17-2018, 10:25 PM | #4 |
Scooby Newbie
Member#: 493592
Join Date: Nov 2018
Location: Ontario
Vehicle:1999 Impreza OBS |
I had an issue similar to this when I swapped my motor. It would randomly cut out around 2.5K and come on strong above 4K. Shut it off, turn it back on and would run like it never happened. Turned out my O2 sensor was toast but didn't throw a code. Only noticed because later on it threw a code for my transmission and the diagnostic showed 0% for all the fuel trims.
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12-18-2018, 03:28 PM | #5 | |
Scooby Newbie
Member#: 410282
Join Date: Jan 2015
Vehicle:2000 |
Quote:
Any other things you noticed with it? Did you diag it yourself? And what were you reading trim with? |
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12-18-2018, 03:29 PM | #6 |
Scooby Specialist
Member#: 59182
Join Date: Apr 2004
Location: N. Idaho
Vehicle:2002 WRX GG>> 2016 Focus RS |
2000 OB sport has the PHASE 2 EJ222; not the EJ22E.
I'd suspect either an ignition or alternator issue - sounds like electrical? Also, check the Knock Sensor. This year shouldn't be an issue, but if it's cracked it might work when cold and act-up when warm? O2 sensor probably would cause issues once warmed up and in 'closed loop'>>>Open loop when cold. |
12-18-2018, 04:10 PM | #7 | |
Scooby Newbie
Member#: 410282
Join Date: Jan 2015
Vehicle:2000 |
Quote:
I have considered the alt as well, as the battery problem was very strange. I can tell you that the car is making around 14v when under a decent load, any numbers I should look at? I will check and see what the book says for alt testing as well. Thanks everyone for the responses, at a loss before I posted. |
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12-18-2018, 05:38 PM | #8 | |
Scooby Newbie
Member#: 493592
Join Date: Nov 2018
Location: Ontario
Vehicle:1999 Impreza OBS |
Quote:
Spent a couple days going through possible vacuum leaks because I thought it might be MAF related, changed the coil and nothing. As soon as I swapped the sensor it ran fine and still is. Been about a month. |
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12-18-2018, 10:19 PM | #9 | |
Scooby Newbie
Member#: 410282
Join Date: Jan 2015
Vehicle:2000 |
Quote:
I also spent some time looking for vacuum leaks, and did end up fixing my cruise control which had also just gone out. We seemed to be on the same path with our diagnosis so this is hopeful. I will order it and report back. |
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03-05-2019, 09:16 PM | #10 | |
Scooby Newbie
Member#: 410282
Join Date: Jan 2015
Vehicle:2000 |
Quote:
Thanks everyone for the help. TL;DR It was the O2. |
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03-06-2019, 01:12 PM | #11 |
Scooby Specialist
Member#: 80465
Join Date: Jan 2005
Chapter/Region:
RMIC
Location: Denver
Vehicle:2001 2.5RS Black Diamond Pearl |
Thanks for following up to close this out.
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03-06-2019, 01:36 PM | #12 | |
NASIOC Supporter
Member#: 30669
Join Date: Dec 2002
Chapter/Region:
Tri-State
Location: USA, North NJ, 07456
Vehicle:1998 Legacy 2.5GT Silver Sleeper BK, 5MT |
Quote:
A lot of us appreciate a close out on an issue! |
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