Watching this thread. I tried to get evoscan to work on my 93 EJ22 and could'nt make it happen. It was very frustrating.
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Leo in San Juan Capistrano
84 Wolfy Westfalia EJ22 powered

• Ignition switch
• Automatic transmission mode
• Test mode
• Read memory mode
• Neutral switch
• Park switch
• California mode
• Idle switch
• Air conditioning switch
• Air conditioning relay active
• Radiator fan relay active
• Fuel pump relay active
• Canister purge valve active
• Pinging detected
• Pressure exchange

"All the sensors are brand new, I replaced everything during the installation."? Was this engine running before the swap? Did you replace the MAP sensor with a Subaru sensor ( I recall they are expensive).

Thanks Brent, I think I've referred to your website since my first conversion 15 yrs ago (cutting out the poptop to install a decent skylight if I recall).

I solved the problem and it was a simple as it gets . I had a pile of skid plate .bumper & undercarriage parts powder coated and I threw in a few engine brackets etc. while i was at it . i tested ground continuity between the alternator & bracket and it was fine but after systematically testing i found the bracket to the block was completely isolated .. rather than bull the bracket I added a dedicated ground wire. I can confirm the >14V output @ 2k RPM . I connected White "S" connector directly to the B+ post . I have seen Web knowledge that it may be better to get that feedback directly from the +ve? post on the battery and ill be checking that today.??

While I'm confessing to rookie moves ill share a a tip . Test your coolant setup before bolting on the intake manifold ... I sourced some non OEM bolts for the water manifold and spotted significant coolant weeping onto the block after assembling everything. Turns out the bolts were bottoming out and when i torqued them to spec they didn't compress the new O rings. That one took forever to figure out? (thankfully its required only low torque) .Those 4 long bolts were off by 2-3 mm.?

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Have you tried wiggling the wiring harness in different places while it’s running at idle? Could be you have a short or bad connection somewhere in your harness.

Same carb cleaner and Q-tips with my 02 2.5. You might need a new gasket with the older? IAC. There are YouTube videos online.

Hi Wayne, How did you clean it?

Thank you Bret. Is there a map of the vacuum hoses online somewhere?? I am new at this motor. Thanks for your patience.

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Still looking for testers? Im not located in washington I live in Eugene, OR - have a westy w 2.2 and westy w a 2.5.?

Cleaning the IAC fixed stalling at a stop for me. Recent YouTube vid mentioned the PCV regarding surging with a Subaru.? Agree the hoses are likely hard and leaky. An old analog multimeter with a needle works for picking up the VSS signal.Assume you used new intake manifold gaskets.

Hi Robert.?

may be 2 different issues.?

idle fluctuations can be IAC related or vacuum leak.?

Check/clean iac. Thoroughly check for vacuum leaks and replace hoses as needed.

Stalling at light is often hall (speed) sensor related.?

Test it with wheel rotating to ensure its picking up the signal properly. Adjust as needed.?

best
Brent

Hi folks,?

I had a frankenmotor installed after my EJ22 failed.? Instead of rebuilding, we put a new EJ25 block on the existing rebuilt EJ22.
With EJ22 I had no idling issues. All the parts are the same except the block. System is an OBD1 from a 1991 Legacy.?
The idles surging is very slight. Slight up and downs, no power loss or hesitation.? Stalls sometimes coming off the freeway and stops (new speed sensor as well)
Any ideas where to start or a list of things I can go over to try and settle this issue?

Yes it is still disconnected. ?

I have not VSS signal ATM. ?I have plans to use my the signal off the speedometer converting that signal to 5V with a relay. ?I bought al the parts but have not installed it yet (weather, my van was in the garage but since I took it out that space has been filled :( ).?

I used this from Summit. ?

I think I got in and out correct because it is stamped "Tank" right on it which is the way I set it up. ?So my bottom evap rail goes to the original hose on the passenger side firewall which goes to the unlabeled male end on the canister. ?Tank went to tank. ?

I used this fuel filter. ?If you have recommendation Austin I am all ears.?

On Sat, Jan 14, 2023 at 09:41 AM, billy wrote:

My RPM situation is getting worse. ?Anytime I push in the clutch is a surprise. ?There are seems to be no pattern but I either get 750 (rare), 1200, 1800, 3000 and a couple times 3500 and 4000!. ?All I was doing was driving it local to try to let the ECU relearn but I no longer think my situation is getting better, it was just teasing me.?

I am still getting codes, 1143 is all the time. ? 507 when she hits 4000 RPM. ?

I have to admit, I am thinking about having a second set of eyes on this. ?Which is tough, having come this far with doing everything myself.?

Still have your VSS disconnected at interface board? Have you fitted a CV set up for VSS yet?

My RPM situation is getting worse. ?Anytime I push in the clutch is a surprise. ?There are seems to be no pattern but I either get 750 (rare), 1200, 1800, 3000 and a couple times 3500 and 4000!. ?All I was doing was driving it local to try to let the ECU relearn but I no longer think my situation is getting better, it was just teasing me.?

I am still getting codes, 1143 is all the time. ? 507 when she hits 4000 RPM. ?

I have to admit, I am thinking about having a second set of eyes on this. ?Which is tough, having come this far with doing everything myself.?