From: "Doug Lomheim rv9flyer13b@gmail.com" Received: from pmg.Logan.com ([207.170.160.161] verified) by logan.com (CommuniGate Pro SMTP 6.5.3) with ESMTPS id 4504898 for flyrotary@lancaironline.net; Sat, 10 Jan 2026 12:07:20 -0500 Received: from pmg.Logan.com (localhost [127.0.0.1]) by pmg.Logan.com (Proxmox) with ESMTP id 937E714A4E for ; Sat, 10 Jan 2026 12:07:20 -0500 (EST) Received-SPF: pass (gmail.com ... _spf.google.com: 209.85.167.177 is authorized to use 'rv9flyer13b@gmail.com' in 'mfrom' identity (mechanism 'ip4:209.85.128.0/17' matched)) receiver=pmg.Logan.com; identity=mailfrom; envelope-from="rv9flyer13b@gmail.com"; helo=mail-oi1-f177.google.com; client-ip=209.85.167.177 Received: from mail-oi1-f177.google.com (mail-oi1-f177.google.com [209.85.167.177]) by pmg.Logan.com (Proxmox) with ESMTPS for ; Sat, 10 Jan 2026 12:07:19 -0500 (EST) Received: by mail-oi1-f177.google.com with SMTP id 5614622812f47-455a461ab6eso2141303b6e.2 for ; Sat, 10 Jan 2026 09:07:19 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1768064833; x=1768669633; darn=lancaironline.net; h=message-id:in-reply-to:to:references:date:subject:mime-version:from :from:to:cc:subject:date:message-id:reply-to; bh=pCfcg0KiKmRUk5iAn/+r5pva9YyNbm8YRwoDHWy+YoI=; b=ZVcGQJLHF3zSRJnB4gAbYmBRVb/GiK0SOwWL5t2A2Yw85RdClvHoo6vx+Y9MFwPwSM EvxUPZKXjIdtwPHbBvTV/wlpZckenIVkDfaZpzTMlPE4EHdupujxzmh7d7IGZWO3JUk4 uu2jy6vwy7YE+hfOSgVkgv1JuRsD355g77ux2sJe+srCQZhSxUVrFWQ0d47/a3uZCddO bEg0z8XiwzWRM5xHfzQPbuIrZMj+rTXikkxcWEMDBJOJuFIzQ/ClK9q1fYh0XSVY8V59 6LOFSbidpD+0zW3KnhMwjCNFE0GVthBW7+n56gY8LfVDLZVK7ZktsyKuWrFB8CIL23aD jGAA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1768064833; x=1768669633; h=message-id:in-reply-to:to:references:date:subject:mime-version:from :x-gm-gg:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=pCfcg0KiKmRUk5iAn/+r5pva9YyNbm8YRwoDHWy+YoI=; b=VIlB0YxAK671GrVJn2xt8/T7l9tkzgGvvYukHu3GpnIl2ne8jg1AyiB862RXiLlFdo RDxVvlg9h1/zqpOG+fCbIFjq/1kziZhDviTdn/x0JBUGpDvn18DHTcQjuvpykz0zfXnP yHe1FdnJW9DAKJcSEYGJNwxEEsciEt00izMSN6ob6XF2WSQ9OJmvSvBe+T5M5qHzSzW0 X7KAex+crmjgE8t/mvxqGkr2kCfY/IB509ti8xvLxzY4lErwdlmGv3UDi2vNpowXnmBY WkWgf4+PJvDl0+sETrmqSGXI0fqEEZ2Q7M/wu9l1ErdaJtCOPm011yQtMj+zBbGFOoPL fZqw== X-Gm-Message-State: AOJu0YxQH6CuE3nxXiGipBYjGZ3fM6RzRlssyDDyzYBkKjRcZ8BnNM8n gnjnPpHbCG4mog00bayFyLqEStIYDSQ2OQ8lrm2ogvysUjJ4yDxmlFvgHGek+A== X-Gm-Gg: AY/fxX7WObRZa7RJrVyZtG1PetpyOHAACKmatcPlQFqLaj1vlqrAyvafA11cxs1bzaG t0rKGv265Grqu8mr0hqRVzfRe0gfjjqcyE/XqhpRrKS9qf3ruuBeRbDNESExGDupWBco4okPYGK oEQF5J1KUJlY/s0c8yYC1cGt5ckOxTJUyMEcXd0BvLKMrNRs3HdKLnHzc9xOydYiIK7aWNdxudU GbLfHWSf8jcABz/IxebDuXObriiTxgHTh4rBsnj3+dqIqsbEolHHwXOFP0IsWovE60VqTp56hb7 AvO2gpyAsHfVgtar5PD1INn8gtOkFIw1Ytu3xEfADrpUJvCfWe8hdtdjoWcL6Gx5DmnOt/iTVEA 9M4f2XS7oEr8AUrUWTW4zOYMywuHpp8XvEtFGbdMy3dSGnSgRAYRnfBj8QFE10sht84YjraFmdh Qqt+4mp4x4jd1xvGiuoM/01M2Xm8WTZaq5qk8= X-Google-Smtp-Source: AGHT+IGsb8pfS7yeNzxogqvLk8BqDKdqslU/bRvmsvLPjZvrsk38PHiQ2RiN8pFxx9kGOI2WiGPbFg== X-Received: by 2002:a05:6808:22a1:b0:44d:b72e:ec1a with SMTP id 5614622812f47-45a6bef15c3mr6845703b6e.45.1768064832713; Sat, 10 Jan 2026 09:07:12 -0800 (PST) Received: from smtpclient.apple ([185.255.130.156]) by smtp.gmail.com with ESMTPSA id 586e51a60fabf-3ffa5161468sm9068028fac.22.2026.01.10.09.07.11 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Sat, 10 Jan 2026 09:07:11 -0800 (PST) X-Google-Original-From: Doug Lomheim Content-Type: multipart/alternative; boundary="Apple-Mail=_16CAD33D-EEB1-46B4-A2DC-EBBF3E10A06C" Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3826.600.51.1.1\)) Subject: =?utf-8?Q?Re=3A_Renesis_EC2_=E2=80=9CA=E2=80=9D_Computer_INOP?= Date: Sat, 10 Jan 2026 11:07:05 -0600 References: To: Rotary Motors in Aircraft In-Reply-To: Message-Id: <82B6BF13-5334-46EA-A42D-08F42D7149AE@aol.com> X-Mailer: Apple Mail (2.3826.600.51.1.1) X-SPAM-LEVEL: Spam detection results: 0 BAYES_00 -1.9 Bayes spam probability is 0 to 1% DKIM_SIGNED 0.1 Message has a DKIM or DK signature, not necessarily valid DKIM_VALID -0.1 Message has at least one valid DKIM or DK signature DKIM_VALID_AU -0.1 Message has a valid DKIM or DK signature from author's domain DKIM_VALID_EF -0.1 Message has a valid DKIM or DK signature from envelope-from domain DMARC_PASS -0.1 DMARC pass policy FREEMAIL_FROM 0.001 Sender email is commonly abused enduser mail provider HTML_FONT_SIZE_HUGE 0.001 HTML font size is huge HTML_MESSAGE 0.001 HTML included in message KAM_MXURI 1.5 URI begins with a mail exchange prefix, i.e. mx.[...] RCVD_IN_MSPIKE_H2 0.001 Average reputation (+2) SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_PASS -0.001 SPF: sender matches SPF record WEIRD_PORT 0.001 Uses non-standard port number for HTTP --Apple-Mail=_16CAD33D-EEB1-46B4-A2DC-EBBF3E10A06C Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 Finn: Thanks so much for these additional steps to try! =20 Looks like we can rule out =E2=80=9C0, 3, 4=E2=80=9D (?) since the = injectors click away and the leading and trailing plugs fire up nicely? Can=E2=80=99t we also rule out =E2=80=9C1=E2=80=9D (Injector drivers) = since the injectors operated nicely in Mode 0 when =E2=80=9Cpriming=E2=80=9D= ? =20 Also, does this rule out a possible CAS issue=E2=80=A6maybe the CAS = circuit is somehow used in firing the plugs at =E2=80=9C3,000 rpm=E2=80=9D= in mode 8? Doug=20 = =EF=BF= =BC = =EF=BF= =BC Would be interesting to know which part of the A controller failed. 0) 5V power regulator 1) Injector drivers 2) Ignition coil drivers 3) Crank angle sensor input. 4) MCU itself. Do the injectors click when you press the Store button or when you put = it into injector test mode? Do the spark plugs fire when you put it into test mode? If either of those work we can rule out 0, 3 and 4. As for compatibility, the main difference between 13B and Renesis is the = crank angle sensor output. The 13B has magnetic pickups and the Renesis = has a timing wheel, so you can't switch them without reprogramming. Then there is dwell time -- depends on iginition coils you use. I suspect that other differences can be handled by tuning. Finn > On Jan 9, 2026, at 4:59=E2=80=AFPM, DOUGLAS LOMHEIM = wrote: >=20 > My Renesis =E2=80=9CA=E2=80=9D processor went INOP a few weeks ago, = and I=E2=80=99ve done the following: a). Verified 12 V to BOTH EC2 = power pins. b). Verified continuity from OAT two wire thermistor to = EC2. c). Replaced thermister with the one on my 9A project. d). = Opened the EC2 to ensure the micro processor was still seated in its=E2=80= =99 socket. =20 > The =E2=80=9CA=E2=80=9D side is still not functioning, and must be = started on the =E2=80=9CB=E2=80=9D side, and when switched to =E2=80=9CA=E2= =80=9D, it immediately dies. =20 >=20 > Are there any other trouble-shooting steps I should try? >=20 > Thx. Doug=20 >=20 > P.S. I believe Tracy did some special EC2 processing on Renesis EC = 2s, vs RX-7 13B? I think I have two extra EC2s, so could swap them out = IF they are compatible with each other=E2=80=A6 >=20 > Thx for your inputs, Doug > Sent from my iPhone --Apple-Mail=_16CAD33D-EEB1-46B4-A2DC-EBBF3E10A06C Content-Type: multipart/related; type="text/html"; boundary="Apple-Mail=_74B8671A-0DE3-4A42-B453-F16F88A8DAD9" --Apple-Mail=_74B8671A-0DE3-4A42-B453-F16F88A8DAD9 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8
Finn:  Thanks so much for these additional steps to try! =  

Looks like we can rule out =E2=80=9C0, 3, 4=E2=80=9D (?) = since the injectors click away and the leading and trailing plugs fire = up nicely?

Can=E2=80=99t we also rule out =E2=80=9C1=E2=80=9D (Injector = drivers) since the injectors operated nicely in Mode 0 when = =E2=80=9Cpriming=E2=80=9D?  

Also, does this rule = out a possible CAS issue=E2=80=A6maybe the CAS circuit  is somehow = used in firing the plugs at =E2=80=9C3,000 rpm=E2=80=9D in mode = 8?

Doug 



3D"Message

3D"Undecoded
Would be interesting to know which part of = the A controller failed.
0) 5V power regulator
1) Injector = drivers
2) Ignition coil drivers
3) Crank angle sensor = input.
4)  MCU itself.

Do the injectors click when you = press the Store button or when you put it into injector test mode?
Do = the spark plugs fire when you put it into test mode?
If either of = those work we can rule out 0, 3 and 4.

As for compatibility, the = main difference between 13B and Renesis is the crank angle sensor = output. The 13B has magnetic pickups and the Renesis has a timing wheel, = so you can't switch them without reprogramming.
Then there is dwell = time -- depends on iginition coils you use.
I suspect that other = differences can be handled by = tuning.

Finn



On Jan 9, = 2026, at 4:59=E2=80=AFPM, DOUGLAS LOMHEIM <dlomheim@aol.com> = wrote:

My Renesis = =E2=80=9CA=E2=80=9D processor went INOP a few weeks ago, and I=E2=80=99ve = done the following:  a). Verified 12 V to BOTH EC2 power pins. =  b).  Verified continuity from OAT two wire thermistor to EC2. =  c).  Replaced thermister with the one on my 9A project. =  d).  Opened the EC2 to ensure the micro processor was still = seated in its=E2=80=99 socket.  
The =E2=80=9CA=E2=80=9D side is = still not functioning, and must be started on the =E2=80=9CB=E2=80=9D = side, and when switched to =E2=80=9CA=E2=80=9D, it immediately dies. =   

Are there any other trouble-shooting steps I should = try?

Thx.  Doug

P.S.  I believe Tracy did some = special EC2 processing on  Renesis EC 2s, vs RX-7 13B?  I = think I have two extra EC2s, so could swap them out IF they are = compatible with each other=E2=80=A6

Thx for your inputs, = Doug
Sent from my = iPhone

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