Witherspoon Seeks ECU Code Flash Advice
Posted: Tue Apr 15, 2008 9:24 am
Hi Guys (and Dolls)
My Check Engine light started coming on a while back
Took it to my nearby ex factory Sube mechanic and he showed me how to
connect that little wire under the dash and read the code flashes
I was getting a Code 22 - Knock Sensor
And he had a convenient factory knock sensor which I bought
Well, I managed to get the old one out after removing only a couple
of vacuum hoses
Then, stupidly, I tried installing the new sensor, after attaching it
to the wire from the ECU which was already pretty brittle, but I
promised myself I would be careful...I didn't want to try connecting
the wires in the limited space I would have after installing the
sensor
Well the damn wire from the ECU broke right smack at the connector
attachment...nothing to splice to
So my mechanic gave me a free ticket into Ecology Auto Wrecking (pic-
a-part), and I found a couple of Legacys that had my wire, so for a
grand total of two dollars, I was ready to rumble.
So without much room to work with I spliced the new old junkyard wire
to what was left of my wire coming out of the firewall to the ECU.
Now this little wire is actually a mini coax, and I was careful to
check out how the factory installation was done because on my car the
outer wire seemed like it was broke off and just hanging out in the
air.
But sure enough, on both the junkyard cars, that wire goes nowhere,
and my factory service manual shows the wire terminating at the ECU
into two plugs, but the outer wire called the shield, goes nowhere,
not even to ground, so I guess it's a radio interference thing.
So I tried to be real careful, when I spliced the two wires (actually
four wires), to keep the inner and outer wires separated with heat
shrink tubing.
But when I got done the C.E. light was still on...shit
So I plugged in the code flasher wire under the dash and NOW it's
going crazy and I'm getting the following sequence;
22 - 11 - 14 - 15 - 16 - 17 - 22 - 11 - 14 - 15 - 16 - 17 - 22 -
repeat
Ideas anyone?
Larry ssspoon Witherspoon
92 Turbo Legacy
562-982-7720
310-439-4269
My Check Engine light started coming on a while back
Took it to my nearby ex factory Sube mechanic and he showed me how to
connect that little wire under the dash and read the code flashes
I was getting a Code 22 - Knock Sensor
And he had a convenient factory knock sensor which I bought
Well, I managed to get the old one out after removing only a couple
of vacuum hoses
Then, stupidly, I tried installing the new sensor, after attaching it
to the wire from the ECU which was already pretty brittle, but I
promised myself I would be careful...I didn't want to try connecting
the wires in the limited space I would have after installing the
sensor
Well the damn wire from the ECU broke right smack at the connector
attachment...nothing to splice to
So my mechanic gave me a free ticket into Ecology Auto Wrecking (pic-
a-part), and I found a couple of Legacys that had my wire, so for a
grand total of two dollars, I was ready to rumble.
So without much room to work with I spliced the new old junkyard wire
to what was left of my wire coming out of the firewall to the ECU.
Now this little wire is actually a mini coax, and I was careful to
check out how the factory installation was done because on my car the
outer wire seemed like it was broke off and just hanging out in the
air.
But sure enough, on both the junkyard cars, that wire goes nowhere,
and my factory service manual shows the wire terminating at the ECU
into two plugs, but the outer wire called the shield, goes nowhere,
not even to ground, so I guess it's a radio interference thing.
So I tried to be real careful, when I spliced the two wires (actually
four wires), to keep the inner and outer wires separated with heat
shrink tubing.
But when I got done the C.E. light was still on...shit
So I plugged in the code flasher wire under the dash and NOW it's
going crazy and I'm getting the following sequence;
22 - 11 - 14 - 15 - 16 - 17 - 22 - 11 - 14 - 15 - 16 - 17 - 22 -
repeat
Ideas anyone?
Larry ssspoon Witherspoon
92 Turbo Legacy
562-982-7720
310-439-4269
