CEL codes 21/41
#1
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CEL codes 21/41
On my way home from work today, my CEL came on and I did not notice any difference in the ride. Volt meter, oil pressure, and coolant temp just fine so I continued my drive home. 21--O2 sensor; 41--TPS.
I currently have a coolant leak into the #4 cylinder--it runs rough if left to leak for more than 2 days. I am planning to do a HG and head replacement this weekend. Could this be the culprit? Yesterday, I started the preparations for the HG work by PB blasting some of my intake & exhaust bolts. I did not spray near the O2 or TPS though.
Any ideas? Think it's OK to run the rest of the week?
I currently have a coolant leak into the #4 cylinder--it runs rough if left to leak for more than 2 days. I am planning to do a HG and head replacement this weekend. Could this be the culprit? Yesterday, I started the preparations for the HG work by PB blasting some of my intake & exhaust bolts. I did not spray near the O2 or TPS though.
Any ideas? Think it's OK to run the rest of the week?
#2
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Leak may cause the o2 to screw up, but prob not TPS since it's on the t-body. However, the o2 could be throwing crazy signals to the TPS causing it to throw codes. I'm guessing is all. I doubt if it'll hurt too bad to drive for a few more days. May be pretty rough though.
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Yeah, I think what I'll probably do is test the TPS when I take it off for the HG work. As for the O2 sensor, I've PB'd that thing for days and days and the bolts aren't budging. I think I'll have to file the sides of the bolts down.
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