DTC P0121, 3800 V6

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Hi

I have a L36 with orig tb. The engine and tb is a1999 in a 1997 LSS.

Several days ago, it threw DTC P0121 and I replaced the tps with another one thought to be good. I drove 200+ miles that day, starting many times and all is well.

The next morning, DTC P0121 is almost withing 15 seconds of first start. I drive over to AZ and get a new tps. Upon removal of old one, I didnt hear the characteristic "click", but installed new tps as I had to go to work. I cleard code, and again, all is well for the same route as day before.

The next morning, DTC P0121! This time, I removed tps, and heard no "click". I re-installed the sensor, cleared the code, and again drove all day without incident.

If this should happen again in the morning, what is happening??

Thanks for your help.

[ June 05, 2005, 11:02 PM: Message edited by: lght1 ]
 
I have a GIF file with diagnostic information. I can't host it from here, but check your PMs. I'll e-mail you the file.
 
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