Code 45 where should i start?

[pm87tb]

Hi guys i need help car is running real rich i cant think straight.... Everytime i get one thing fixed something else pops up .. Car smoke like crazy when its at idle and gets worst when you give it gas any advice i would appreciate... thanks

 

[SHADOWII]

from the manual,

suggests O2 bad, fuel pressure too high, rich or leaking inj., purge canister, tps, and egr stuck open, Check for fuel in oil. Don't forget the MAF!
A scan tool helps a lot. I'm assuming you have been thru this before. Hope this helps.

 

[Lee_Burough]

Code 45 - O2 Rich

Trouble Code 45 indicates that the O2 sensor is showing a persistently low exhaust oxygen content (rich), despite the efforts of the ECM to decrease injector on-time (thus decreasing fuel delivered). Integrator and BLM numbers may indicate < 128 by a substantial margin.

The conditions for setting this code are:

No Code 34 or Code 35 (MAF error) present, and
The O2 sensor voltage remains above 752 mV, and
The ECM is in Closed Loop control, and
Throttle position is < 2 percent or > 20 percent, and the above conditions exist for more than 20 seconds.
Typical causes for this code include:

O2 sensor defective or contaminated (if incorrect RTV sealant or too much RTV is used, this may happen)
Faulty EPROM calibration
Leaking fuel injectors
Fuel pressure too high
EMI interference from poor plug wires
Evaporative Emission system defect
TPS and/or EGR problem
MAF sensor reading higher airflow than is actually present

 

[pm87tb]

Thanks guys i am going to take my time and check all these things one at a time. hopefully we can get her back to normal.. thanks again..