I think I killed my primary O2 sensor today.
As I was driving the CEL came on, I went home and checked it and it was CEL #1 (bad O2 sensor). I also noticed the RPM surging from almost 0 rpm to 1000 rpm. The RPM would drop so low that I thought the car was going to stall but it never did. The strange thing is that on my way home from work the surging stopped and It idles perfect.
I put like 3 gallons of race gas (DP 114 i think) in it when I went racing because there were no gas stations in the area and I NEEDED gas to get to one. Once I found one I filled the rest of the tank with regular.
That night I went racing I also bent a few valves, but that's fixed now. But the same tank of gas was in the car. Once the car was fixed I drove around on that tank of gas until it was empty so I could fill it up with some nice premimum. Well I got a full tank of premimum last night but this morning on my way to work the CEL came on. My question is...Does anybody think that the race gas that I had in the tank caused the sensor to go bad? Also since it stopped surging could the sensor have fixed itslelf? Is this even possible?

 

got lead?

you r cat converter may be screwed too...

dunno, what sort of race gas was it?

t..

 

sounds like it was leaded..in which case, yes, your O2 is a goner, and perhaps your main cat as well..

Get AAA and call them to bring you some gas next time.

 

I think that all gas over c10 is leaded...or is it over 100?

Lead will certainly screw your sensor...I guess that's the price you pay

 

[QUOTE]I think that all gas over c10 is leaded...or is it over 100?

VP has a 103 octane unleaded (motorsport 103)

sunoco has a 104


[Modified by jlicrx, 4:03 PM 11/9/2002]


[Modified by jlicrx, 4:08 PM 11/9/2002]