P0053 AND P0059 (Both O2 Sensors)
#1
P0053 AND P0059 (Both O2 Sensors)
05, 5.3 L59, I reworked my own harness, no rear O2 sensors, about 5K miles on it.
I'm getting an intermittent O2 sensor heater resistance code at startup, car runs fine though. Both banks throw a code at the same time. I'm not running an O2 sensor fuse.
As far as I know, the only thing they have in common is the switched power source and they're both wired independedntly into my switched pink wires.
I'm guessing an intermittent short or open circuit in the pink power wires would be the most probable cause. Anything else obvious I should consider?
I'm getting an intermittent O2 sensor heater resistance code at startup, car runs fine though. Both banks throw a code at the same time. I'm not running an O2 sensor fuse.
As far as I know, the only thing they have in common is the switched power source and they're both wired independedntly into my switched pink wires.
I'm guessing an intermittent short or open circuit in the pink power wires would be the most probable cause. Anything else obvious I should consider?
Last edited by garys 68; 05-20-2012 at 11:45 AM.
#3
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Jon
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#4
No but my muffler guy put the O2 bungs fairly far from the f body exhaust manifolds (about 1 ft.) The O2 sensor wires are not extended.
And I only get the code on cold startup. My understanding is that resistance is measured initially on cold starts and that's what's out of range and sets the code.
And I only get the code on cold startup. My understanding is that resistance is measured initially on cold starts and that's what's out of range and sets the code.
#7
All three occasions were cold start after sitting at least 24hr. Car ran fine, cleared codes, CEL didn't come back on for over a week.
I got under the car today, checked for voltage at the connector, replugged everything in. We'll see, maybe just corrosion or loose plug.
I got under the car today, checked for voltage at the connector, replugged everything in. We'll see, maybe just corrosion or loose plug.
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#9
Hi Gary, did you ever figure this out? My 68 C10 with LS2 and Speartech harness and E67 computer is doing the same thing! Only on cold starts, clear the codes and they don't come back until the next cold start, but not always.
I have emailed John at Speartech, just waiting for him to reply.
Greg
I have emailed John at Speartech, just waiting for him to reply.
Greg
#11
#12
Received an email from John over at Speartech, this is what he has to say.
Those are fairly minor codes that may be due to aftermarket O2 sensor variations or something similar.
They could probably be taken care of thru reprogramming.
Those are fairly minor codes that may be due to aftermarket O2 sensor variations or something similar.
They could probably be taken care of thru reprogramming.
Last edited by LSX-affair; 04-16-2013 at 01:46 PM. Reason: s
#13
Still fixed?
Thanks.