1998 Cadillac Eldorado P0121 Code

kuzinator · **Joined:** Sat Sep 15, 2007 6:29 am **Posts:** 1

I had a couple of P0121 codes on my Eldorado, and when it occurred it would go to a very fast idle. I turned the engine off and restarted and the code and fast idle cleared. This hasn't occurred for quite a while. What could have caused this code, and is it a cause for concern?

Sponsored Links · **Joined:** 29 Jun 2004 08:12 pm **Posts:** N/A

jeff compton · **Posted:** Sat Sep 15, 2007 7:47 am

It's a tps fault and yes it's cause for concern! the check engine light being on always is!

fuel injection center · **Joined:** Tue Sep 11, 2007 5:46 pm **Posts:** 191

HI...
Check the sensor´s harness and wire connection.

1998 Cadillac Eldorado P0121 Code

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