ECM Code Question - '88 TA
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Location: Northern KY
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Car: 1988 Trans Am
Engine: 305 TPI - LB9
Transmission: 700R
ECM Code Question - '88 TA
First time I have read codes on a GM, I do believe - was curious, it flashes a 12 at me, then a 13 - and seems to keep repeating. Is that normal?
I know on Mopar they will flash whatever codes and then stop.
Also - from what I found a code 13 means:
Oxygen sensor voltage stays between 0.35 and 0.55 volts for 60 seconds. Engine was at normal operating temperature and had been running for at least 2 minutes after start with a throttle angle above 5%.
That just mean the O2 sensor isn't responding or?
From what I can tell, I'm missing the O2 sensor entirely - it's on the driver's side exhaust right under the manifold on the pipe, right?
It's still running rough, but the plug wires are in pathetic shape, I suspect the plugs aren't any better.
Of all the cars I've worked on, I'll have to admit - it's a solid car, in spite of the very obvious lack of routine maintenence on it, lol.
I know on Mopar they will flash whatever codes and then stop.
Also - from what I found a code 13 means:
Oxygen sensor voltage stays between 0.35 and 0.55 volts for 60 seconds. Engine was at normal operating temperature and had been running for at least 2 minutes after start with a throttle angle above 5%.
That just mean the O2 sensor isn't responding or?
From what I can tell, I'm missing the O2 sensor entirely - it's on the driver's side exhaust right under the manifold on the pipe, right?
It's still running rough, but the plug wires are in pathetic shape, I suspect the plugs aren't any better.
Of all the cars I've worked on, I'll have to admit - it's a solid car, in spite of the very obvious lack of routine maintenence on it, lol.
Last edited by Overcast32; 06-02-2007 at 12:06 PM.
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