1999 Cadillac Catera base 120k.

Asked by May 31, 2014 at 02:02 PM

Question type: Maintenance & Repair

Just changed all spark plugs and coil packs for both banks. Cleared all codes and
lights.Car ran great for 1 week and now check engine light is back on and codes for both
banks running rich are shown. Car idles and drives perfect even with light on, and mileage
is down. Any suggestions?

2 Answers

111,155

http://www.obd-codes.com/p0172 - check this out for possible causes and solutions.

1 of 1 people found this helpful.
Best Answer
111,155

http://www.obd-codes.com/p0175 -- they both the same just different bank.

1 of 1 people found this helpful.

Your Answer

Add photo

Related Questions

  • 1999 Cadillac Catera base 120k. 2 answers

    Just changed all spark plugs and coil packs for both banks. Cleared all codes and lights.Car ran great for 1 week and now check engine light is back on and codes for both banks running rich are show...

    Maintenance & Repair

  • 1999 Cadillac Catera transmission problem 1 answer

    I Have 1999 Catera The S Light Started Flashing and now the vehicle will only move in reverse. Transmission barking moves in drive. Do you not what could be the problem?

    1999 Cadillac Catera 4 Dr STD Sedan

    -

    Maintenance & Repair

  • Misfire in 1 3 5 Cadillac Catera 1999 4 answers

    Have a misfire i-135 can somebody tell me how to fix it out a 1999 Cadillac Catera

    1999 Cadillac Catera 4 Dr STD Sedan

    -

    Maintenance & Repair

  • how do i change water pipe back of 1999 cadillac catera engine 1 answer

    coolant leaking back of 1999 cadillac catera engine metal water pipe that runs to lower backside of engine think pipe in backside of engine has a hole in it

    1999 Cadillac Catera 4 Dr STD Sedan

    -

    Maintenance & Repair

  • 2000 Cadillac Catera 2 answers

    I will try to make this as painless as possible. I have become the owner of a 2000 Catera. I knew nothing of the Catera until a few months ago. I have done some reading and it looks like this mo...

    Cadillac Catera

    -

    Maintenance & Repair

Shortcuts

Search Maintenance & Repair Questions

Maintenance & Repair Experts

#1 Tom Demyan
Tom Demyan
Reputation 171,990
#2 dandyoun
dandyoun
Reputation 92,600
#3 tenspeed
tenspeed
Reputation 74,740
View All

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.