Trouble Codes?

**ssxcytmnt** · 11-25-2006, 01:43 PM

Hi, I sure could use some advise with all the trouble codes that are in my car right now, The SES light is off and seems to come on when there is a 1/4 tank of gas and when i fill it up it goes out. It also comes on when its hot outside and I run the a/c. In the summer time it stays on constantly. In the winter time it goes out. I have 6 trouble codes.
1. PO118 = eng coolant temp circut high input
2. PO171 = system to lean bank 1
3. PO174 = system to lean bank 2
4. PO420 = catalyst efficeny below threshold
5. PO480 = cooling fan control circut
6. PO481 = cooling fan control circut 2

I recently blew a cooling fan fuse and one replaced a fan motor that went out cause of a trash bag that got caught up in the fan motor.
The car runs fine at this point and the SES light is off.

I also would like to know about what it should cost to have the clutch replaced, I have 183000 miles and am still on the original clutch..

I know its alot to ask but i would really apprecaite any help any one can offer.. Thanks Rick Ft Worth Tx

**sunsetorangess** · 11-27-2006, 07:43 AM

As far as the clutch you will have too call around and see who will offer the best price, or get a few buddies together and buy the beer and im sure you can figure it out. Its pretty straight forward..
Check your relays for your fans...
Seems like Your cat is shot.
Try cleaning out your coolant sensor.
J

**89LX** · 11-27-2006, 10:57 AM

I know it won't fix all those you listed but make sure there is a good seal on the gas cap.....easy stuff first.

**sscamaro1384** · 03-06-2007, 06:13 PM

i have those same codes p0171 and p0174? bank1 and bank2 too lean. what is this? o2 sensors? coolant sensor?i m out of ideas.

**jimmy77611** · 03-06-2007, 06:23 PM

Your coolant sensor is probably bad. It may be what's causing the lean codes too. Or maybe a vacuum leak. Your injectors could also be clogged considering your mileage. The cats are probably going bad at that mileage too. The fan code probably set because the fuse blew, and the pcm detected it.

**2001NBMZ28** · 03-06-2007, 06:25 PM

Vacuum leak? Look up the diagnostics at www.gearchatter.com for your year.

**sscamaro1384** · 03-06-2007, 06:41 PM

could the coolant sensor be bad and still read the temperature? i noticed this right after i changed my water pump. i did remove the throttle body and have inspected it and checked for vaccum leaks? how much is the coolant sensor?

**jimmy77611** · 03-06-2007, 06:43 PM

The computer uses a different coolant sensor than the gage i think., And yes, a vacuum leak can cause lean codes, just look at step 5 of the diagnostic procedure on the website you recommended.

**sscamaro1384** · 03-08-2007, 04:52 PM

i just noticed my throttle cable is broken. i ordered it at the dealer but waiting for it. could this throw those codes also. i ve played with the cable a bit and it does seem to affect the idle a little bit.