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Re: Electrical Help
I'm in Dundas Ontario,? 45 minutes west of Toronto.? On Wed, May 10, 2023, 11:38 a.m. Noras dad <norasonlydad@...> wrote:
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Re: High and sticky RPM
Yes!? ECU is constantly making incremental adjustments.? It will only do a little bit at a time...by design.? Might even take 20 start/drive/shut-down cycles, but eventually it will get to where it wants to be.
On Wednesday, May 10, 2023 at 10:40:35 AM PDT, billy via groups.io <gofast505@...> wrote:
Im back! Got on the reader, there was a code for no VSS, odd, I just hooked that up. ?Reset, restart, started up 1200, went down to 750, drove for about 5 mins no prob then the idle was higher, bout 1800 again. ?Stopped, checked reader, no codes! ?Reset again and restarted, 1200 to 750 as usual. ?Drove home, about 5 minutes with no issues till my road. ?Idle was high but not that high, bout 1200. ?Pulled into driveway. ?Stopped and checked reader, had a 1143 code. ?Reset and restarted at 1200-750 as normal. ?Had to quit for the day. ?I read somewhere on here that this is kinda normal for startup with the VSS? ?That the ECU must learn? ? |
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Re: High and sticky RPM
Im back! Got on the reader, there was a code for no VSS, odd, I just hooked that up. ?Reset, restart, started up 1200, went down to 750, drove for about 5 mins no prob then the idle was higher, bout 1800 again. ?Stopped, checked reader, no codes! ?Reset again and restarted, 1200 to 750 as usual. ?Drove home, about 5 minutes with no issues till my road. ?Idle was high but not that high, bout 1200. ?Pulled into driveway. ?Stopped and checked reader, had a 1143 code. ?Reset and restarted at 1200-750 as normal. ?Had to quit for the day. ?I read somewhere on here that this is kinda normal for startup with the VSS? ?That the ECU must learn? ? |
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Re: Electrical Help
Where ru? I installed that kit in my 85 a bunch of years ago. On Tue, 9 May 2023, 14:30 Rich Humber, <humber.rich@...> wrote:
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Electrical Help
I'm really close to finishing the install of our manual EJ25 out of a '02 Legacy with Small Car conversion kit, into our '88 Westy, but I'm stuck on some wiring issues.? I'm really hoping someone in the group might be interested in helping via video sort out the last of the question?I?have so I can get this beast back on the road.? I'd be more than happy to pay for your time.? If you're interested let me know what works on your end and I'll send out a Team's meeting request. A sincere thank you to everyone from the group who's helped me along the way.? It's been quite an adventure. Stay safe,? Rich |
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Re: Stumble/misfire under load EJ22
I¡¯ve had similar issues in the past which were revealed to be a hairline crack in one of the spark plug wires intermittently shorting to the block or intake. Sometimes you can run it in the dark and see the spark jumping. This issue can be weird because it can be ambient temperature dependent, engine temp dependent, or speed dependent (air rushing past the engine at speed shifts or lifts the wire just enough to stop the short).
The coil internally failing could also cause issues like this which may also jump from cylinder to cylinder, but might not show physical evidence. Cracked spark plug bodies can also do this, but I think it tends to be more regular. |
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Re: Idle Issues.
¿ªÔÆÌåÓýTry wriggling the wires on your harness at different place while engine is running . See if you can locate a harness or sensor issue. I have huge issues at my large grey plug that goes to my sub harness on the motor. Still trying to figure out the issue. Where the short is. Just need dedicated time?On May 6, 2023, at 4:39 PM, Dr Mark <mark@...> wrote:
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Re: Stumble/misfire under load EJ22
¿ªÔÆÌåÓýThanks for all the suggestions.?I forgot to mention the ignition switch is a new old stock switch that was replaced 2k miles ago. Doesn¡¯t mean it can¡¯t be bad, but I did try fiddling with it with no change in condition.? Tested resistance between pins 2 and 4 on the TPS. Per the FSM I should be seeing 10-12k ohms with the throttle closed, I¡¯m seeing 8k ohms, and per the FSM I should be seeing 3-5k ohms at wide open, I¡¯m seeing around 2k ohms. I don¡¯t get any weird spikes, resistance is linear throughout the entire range from open to closed but the lower and upper limits are a little out of spec.? I am wondering if it¡¯s possible I¡¯m getting some pre ignition or a bad signal from my knock sensor causing it to enter a limp mode? I am running a 2.5 short block with 2.2 heads and STI rods and pistons, so it is higher compression than stock. And I¡¯m running at sea level right now versus 5000¡¯ elevation back home. Although I haven¡¯t had a problem with pre ignition in the past at sea level and I¡¯ve probably driven this build around 5k miles at sea level.? It was also recommended to check the fuel pressure regulator, which i actually am carrying a spare so I will be swapping that out this evening.? I smoke tested for vacuum leaks a month or so ago and everything looked good, that¡¯s not to say something hasn¡¯t changed, but the problem is so inconsistent and doesn¡¯t feel like vacuum issues I¡¯ve had on vehicles previously. Thanks for all the suggestions. I¡¯ll do some more troubleshooting and report back if I can find a solution.? On May 7, 2023, at 8:30 AM, Bindu Miller <bindumiller@...> wrote:
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Re: Stumble/misfire under load EJ22
Conner I'm not familiar with the 2.2 specifically but have run several Subaru engines in my Westy over the 30 years I have owned it. If it stumbles on acceleration, it could be the TPS worn out. It is supposed to richen the mixture during acceleration. Diagnose with an ohm meter. Also, water in the gas could be the problem, so try some gas drier--I've fixed several maddening issues similar to what you describe just with that. Also, a common problem is worn ignition switch--can create intermittent issues that are hard to diagnose. Next time it happens, try bumping the ig sw-turn back toward off just a hair, see if it makes any difference. Check the simple, basic stuff first. Dennis On Sun, May 7, 2023 at 7:00?AM Jeff Morrow <situationiste@...> wrote:
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Re: Stumble/misfire under load EJ22
Probably not too relevant, but two Subie engines ago in our '90 Syncro Westie was from a '93 SVX, Small Car installed. It had a tendency to stall when dropped quickly to idle unloaded (e.g., coasting to stop in neutral) and, quite intermittently, stumbling for no more than 1 second while cruising above 40 mph. I can't remember all the things we tried to fix those issues but I finally gave up and lived with them. FWIW, the EZ30 we run now doesn't have either problem. On Sun, May 7, 2023, 08:50 Al Pfeiffer via <OrientalGardens=[email protected]> wrote:
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Re: Stumble/misfire under load EJ22
I have an 82 conversion to an EJ25 with small car components. Have had and maybe still have the problem but was told to look at the various fuel line/tank/and fuel filter diameters.? The problem primarily occurs after a lot of driving at high temps but it sounds like identical symptoms.? I didn't change out the tank but got a GoWesty pump/filter/line kit and it seemed to help but recently I've had a few stumbles too.? I'll follow this thread with interest but maybe high temps and diameter changes in the fuel path as something to look at? -----Original Message-----
From: connor warren via groups.io <connor_warren59@...> To: [email protected] Sent: Sun, May 7, 2023 3:09 am Subject: [SubaruVanagon] Stumble/misfire under load EJ22 Hey all,
I¡¯ve got a KEP EJ22 conversion from a 1992 Legacy in my 1982 Vanagon. I suddenly started getting a stumble/loss of power/misfire at cruising speed that is exacerbated under acceleration, primarily when rolling on the throttle after cruising at a constant speed. It¡¯s very intermittent, but is becoming more frequent and I am currently 600 miles from home but have a few free days to troubleshoot. The OBD1 computer is not throwing any codes.
The van has the following new parts:
Injectors
Fuel pump
Fuel filter
MAF sensor
IACV
Camshaft position sensor
Fresh long block from a very reputable engine builder
Harness from AutoVentures
It almost feels like a short in the ignition circuit with how intermittent it is.?
If anyone has had this same issue or has a suggestion of where to start troubleshooting, I¡¯m all ears. I¡¯ve got a decent compliment of tools with me and a factory service manual for my Vanagon as well as the 1992 Legacy that the engine was pulled from so I can run a decent diagnostic.
Thanks in advance!
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Re: Stumble/misfire under load EJ22
I'm not sure if this applies or not.
Could it be a vacuum leak / loose vacuum line?
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I have a 92 ej22 in an 87 doka.
During my most recent smog check we couldn't get it to idle correctly.
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It had been sitting for a while.
So?I put in a brand new EGR valve, and did an oil change.
The tech did a pre-check test and it wasn't idling smooth.
He had me run out the old gas and then put fresh fuel in.
Next he suggested cleaning the MAF sensor.
Next was a set of fresh spark plugs
Each time we would try something and it would almost make it through the test
and then the idle would start bouncing around and it would fail.
During the last test he discovered a loose vacuum line and reconnected it.
That solved my problem. The idle immediately smoothed out.??
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It also dramatically dropped my idle Hydro Carbon measurement.
In past smog checks I was getting? around 120ppm (150ppm is maximum allowed amount).
After finding and fixing the vacuum leak my Hydro Carbon levels measured 23ppm.?
He said my engine is the cleanest burning Subaru he's ever tested.?
---------- Original Message ----------
From: "connor warren via groups.io" <connor_warren59@...> To: [email protected] Subject: [SubaruVanagon] Stumble/misfire under load EJ22 Date: Sun, 7 May 2023 00:09:02 -0700 Hey all, I¡¯ve got a KEP EJ22 conversion from a 1992 Legacy in my 1982 Vanagon. I suddenly started getting a stumble/loss of power/misfire at cruising speed that is exacerbated under acceleration, primarily when rolling on the throttle after cruising at a constant speed. It¡¯s very intermittent, but is becoming more frequent and I am currently 600 miles from home but have a few free days to troubleshoot. The OBD1 computer is not throwing any codes. The van has the following new parts: Injectors Fuel pump Fuel filter MAF sensor IACV Camshaft position sensor Fresh long block from a very reputable engine builder Harness from AutoVentures It almost feels like a short in the ignition circuit with how intermittent it is. ? If anyone has had this same issue or has a suggestion of where to start troubleshooting, I¡¯m all ears. I¡¯ve got a decent compliment of tools with me and a factory service manual for my Vanagon as well as the 1992 Legacy that the engine was pulled from so I can run a decent diagnostic. Thanks in advance! |
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Stumble/misfire under load EJ22
Hey all,
I¡¯ve got a KEP EJ22 conversion from a 1992 Legacy in my 1982 Vanagon. I suddenly started getting a stumble/loss of power/misfire at cruising speed that is exacerbated under acceleration, primarily when rolling on the throttle after cruising at a constant speed. It¡¯s very intermittent, but is becoming more frequent and I am currently 600 miles from home but have a few free days to troubleshoot. The OBD1 computer is not throwing any codes. The van has the following new parts: Injectors Fuel pump Fuel filter MAF sensor IACV Camshaft position sensor Fresh long block from a very reputable engine builder Harness from AutoVentures It almost feels like a short in the ignition circuit with how intermittent it is. If anyone has had this same issue or has a suggestion of where to start troubleshooting, I¡¯m all ears. I¡¯ve got a decent compliment of tools with me and a factory service manual for my Vanagon as well as the 1992 Legacy that the engine was pulled from so I can run a decent diagnostic. Thanks in advance! |
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Re: Idle Issues.
"Just the various misfire codes..."? What does this mean? Stumble when coming to a stop,then at idle. I would give the IACV a good cleaning again and clean the throttle plate. Also check the VSS gap and clean the contacts. Subaru upper engine cleaner or Seafoam it. Try a fuel system cleaner.
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Re: Idle Issues.
my question is why would changing the oil make things worse?? .. same viscocity ? is the oil up to temp . if its not increased strain from thick oil i would suspect something to do with compression maybe . what kind of condition is the subary engine in .?
maybe its a coincidence but .i am suspicious .? |
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Re: Idle Issues.
Very thorough, including smoke test at Throttle Body and IACV.....just a longshot guess, but did you use brand new gaskets for both?? I've had weird idle and "pop-pop-pop" in exhaust when downshifting (both on Subie 2.2 and 4-stroke motorcycle) and new gaskets fixed both.? Especially important on Throttle Body.
On Saturday, May 6, 2023 at 09:40:16 AM PDT, Willrburkett@... <willrburkett@...> wrote:
I have noticed a slight stumble at idle when I have come to stops over the last several months. It would happen every 10 seconds when idling for extended periods (stop lights, etc). Seemed like more of a hiccup if anything. Van has been running great besides that with no codes being thrown.? Today I changed my oil and was letting van idle for an extended period and noticed that the idle was much rougher with the stumble much more frequent. Enough to throw misfire codes on all cylinders.? Parts that are newer or I was able to swap for spares: plugs, wires, coil, O2 sensor, MAF sensor, knock sensor, injectors, fuel filter, and fuel pump. Tank is only a year or so old, was recently dropped and looked spotless.? I had somewhat recent cleaned throttle body and IAC valve, but thought I would check they were still spotless. Smoked checked intake no apparent issues..? 1984 Westfalia with a 99 Legacy 2.2L motor installed using the RMW kit and Autoventures harness. Running a CV mounted VSS.? Short video:? ? Looking for advice or ideas on where to possibly look next. Thanks in advance.? -Will |
Dr Mark
Emmanuel Vargas
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