X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [24.25.9.101] (HELO ms-smtp-02-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 4.3c5) with ESMTP id 945283 for flyrotary@lancaironline.net; Sun, 15 May 2005 21:14:40 -0400 Received-SPF: pass receiver=logan.com; client-ip=24.25.9.101; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-024-074-189-178.carolina.res.rr.com [24.74.189.178]) by ms-smtp-02-eri0.southeast.rr.com (8.12.10/8.12.7) with SMTP id j4G1Dq0W023187 for ; Sun, 15 May 2005 21:13:53 -0400 (EDT) Message-ID: <000701c559b4$85f66530$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] EC2- What am I missing? Date: Sun, 15 May 2005 21:13:52 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0004_01C55992.FEADD6B0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_0004_01C55992.FEADD6B0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MessageHi John, Assuming that the Ec2 is OK (for the moment), the one thing I can think = of that might prevent you from getting spark or injection is lack of a = signal from your crankangle sensor. I Don't have an EM2 so don't know = what effect a problem with the Ec2 would have on the EM2. However, I am = (almost) certain you should not need the EM2 (I don't have one) to run = the engine. So assuming the Ec2 is OK and you have power to it, then the next most = important thing is to get a crankangle sensor signal. So do a continuity check on the crank angle sensor. Since the crank = angle sensor is only a coil of wire(two actually - which the metal = spokes turn past), that should be fairly easy to do. You have two wire = coils in the crankangle sensor and I don't have a diagram I can find at = the moment - but from memory I believe you have four wires coming from = the crankangle sensor. I just don't know whether the two coils are = interconnected or standalone. I will try to see if I can't find a = diagram.=20 But, for the moment, I would lean toward lack of crankangle sensor = signal. Ed A ----- Original Message -----=20 From: John Slade=20 To: Rotary motors in aircraft=20 Sent: Sunday, May 15, 2005 8:57 PM Subject: [FlyRotary] EC2- What am I missing? EC2 users, I'm finally done with the rewiring. I've replaced all 18 wires from = the EC2 to the PCM and the EM2 with shielded 22g and checked each one = three times for continuity. I still get "nop" from the EM2 (i.e. no = communication with EC2). There seems to be no spark or fuel while = cranking which leads me to think that the EC2 is not triggering the = coils or the injectors on either computer. There's 12v on both the EC2 = power pins, and a good ground on the ground pin. The cold start / = injector disable grounds the cold start pin correctly. The coil disable = functions ground the pins correctly. I'm running out of things to check, = other than check the same things again. I hate to say it, but I'm = beginning to think that the EC2 is dead - but then it was checked as = good by Tracy before he shipped it. I did hook it up when it arrived, = and ran the engine briefly on the B computer. I've no reason to think = this hookup to the old wiring fried the computer since my old computer = checked out good when returned. Yet another check of the wiring = tomorrow, then I'm totally stumped.=20 Could I be missing something obvious? John (how do you spell frustrated?) PS - No jokes Rusty - I'm just not in the mood :) ------=_NextPart_000_0004_01C55992.FEADD6B0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message
Hi John,
 
Assuming that the Ec2 is OK (for the moment), = the one=20 thing I can think of that might prevent you from getting spark or = injection is=20 lack of a signal from your crankangle sensor. I  Don't have an = EM2 so=20 don't know what effect a problem with the Ec2 would have on the = EM2. =20 However, I am (almost) certain you should not need the EM2 (I don't have = one) to=20 run the engine.
 
So assuming the Ec2 is OK and you have power to = it, then=20 the next most important thing is to get a crankangle sensor = signal.
So do a continuity check on the crank angle = sensor. =20 Since the crank angle sensor is only a coil of wire(two actually - which = the=20 metal spokes turn past), that should be fairly easy to do.  = You have=20 two wire coils in the crankangle sensor and I don't have a diagram I can = find at=20 the moment  - but from memory I believe you have four wires coming = from the=20 crankangle sensor. I just don't know whether the two coils are=20 interconnected or standalone.   I will try to see if I can't = find a=20 diagram. 
 
 But, for the moment, I would lean toward = lack of=20 crankangle sensor signal.
 
Ed A
----- Original Message -----
From:=20 John=20 Slade
Sent: Sunday, May 15, 2005 8:57 = PM
Subject: [FlyRotary] EC2- What = am I=20 missing?

EC2 users,
I'm finally done with the = rewiring.=20 I've replaced all 18 = wires from the=20 EC2 to the PCM and the EM2 with shielded 22g and checked each one three times for continuity. I still get = "nop" from=20 the EM2 (i.e. no communication with EC2). There seems to be no spark = or fuel=20 while cranking which leads me to think that the EC2 is not triggering = the=20 coils or the injectors on either computer. There's 12v on both the EC2 = power=20 pins, and a good ground on the ground pin. The cold start / injector disable grounds = the cold=20 start pin correctly. The coil disable functions ground the pins = correctly.=20 I'm running out of things = to check,=20 other than check the same things again. I hate to say it, but I'm=20 beginning to think that the EC2 is dead - but then it was = checked as=20 good by Tracy before he shipped it. I did hook it up when it arrived, = and ran=20 the engine briefly on the B computer. I've no reason to think this = hookup to=20 the old wiring fried the computer since my old computer checked out = good when=20 returned. Yet another check of the wiring tomorrow, then I'm totally = stumped.=20 3D""=20
Could I be missing something=20 obvious?
John (how do you spell=20 frustrated?)
PS - No jokes Rusty - I'm just not in the = mood=20 :)
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