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Unit serial number is the defining factor on how the intake air sensor is connected.
Tracy
On Mon, Nov 15, 2010 at 3:32 PM, Chris Barber <cbarber@texasattorney.net> wrote:
Got engine running but had to use my second ECU, the one I bought from Rino. Guess my primary will be off to Tracy.
I had gone back to basics and rechecked my static timing using Lynn's previous email (love my iPhone), checked compression, rechecked wires at ec2. No joy 'til I hooked up SN 263 (Rino's unit). Started as hoped. A bit rough, but responsive.
Looks like SN 507 will be in the mail soon.
On that note, I seem to have an inconsistency in my manuals regarding the wiring for various serial numbers. In the last Hardcopy I received with my latest update dated 29 jan 08, page 24 shows use with pre early 2005 units, to wire pin 11 as a temperature sensor wire (later units, per p23, shows no connection, pin 1 is used for air temp ground). P23 shows to use pin 1 for 2006 and later.
However, the latest manual Tracy emailed me last week, dated 2-28-09 p25 identifies early units by SN with early units being 200-499. This is repeated in the diagrams on pp 29&39 in a little call out box for the temp sensor.
My harness is using pin 11 as it is what was in my original manual, however, my concern regards that the serial number indicates the alternate wire scheme. Unit 507 shows a March 2005 manufacture date.
Chris Barber
Sent from my iPhone 4
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