Codes

[xpnsiv93]

OK, my CE light came on today, i ran the codes...I got the meaning of them but dont really understand them and which ones are serious and are all of a sudden throwing my CE light??
Key On Engine On
167 225
Key On Engine Off
511 114 117

Any help is appreciated so i can fix the problem. :cry:
-nick-

 

[Cobraii976]

167 Insufficient throttle position change during dynamic response test.
225 Knock sensor (KS) not sensed during dynamic response test.

Sounds like those you might have been slow on the goose test or they are stored.
114 ACT out of self-test range. Air Charge Temp Sensor it's thing that plugs into the air fliter box. check the connection.
117 ECT indicated 254degF. Circuit grounded. Engine coolant tempature sensor. that is another check the connection frist deal.
511 EEC processor ROM test failure. Well not really sure what that one means but it sounds bad and could be causing all the problems.

 

[xpnsiv93]

Cobraii>< I appreciate your response, could someone else PLEASE chime in and tell me if that 511 code is a bad sign or not, and what i should check/replace etc:...thanx.

 

[projectSHO89]

The 511 code is most commonly caused by an aftermarket computer chip. Can't tell whether or not you have one. If you do, ignore the code.

All in all, not likely a faulty PCM at this point. Probably a couple wiring or sensor issues.

Steve

 

[xpnsiv93]

Thanx ProjectSHO>< YES I DO have a Ted B. LPM....looks like i need to look into replacing a few sensors or checking my wiring...thanx to ProjectSHO and Cobraii!!! :thumbs:
-nick-

 

[rangerj]

A couple of hints:

The ACT will code if the ambient temperature around it is less than 50 degrees F. Why, because that is the bottom end of its design. The sensor sends a signal in voltage and ohms based upon 50 degrees and 248 degrees F. As the temperature goes up, starting at 50 degrees, the voltage and ohms goes down, through the 248 degree top end of the range. So, any reading the computer gets that is out of the range and it "codes". So, if you ran the test in temperatures below 50 degrees F that explains the code.

The coolant temperature code indicates that the signal provided to the computer indicates the high end of its temp range. If your Temperature gauge is giving you a normal reading, and there are no signs of the engine running "hot", then the ECT is suspect. If the connections are OK, and the code indicates that the signal is getting to the computer, so that you can assume your wires are OK, then change the sensor.

As for the knock sensor not being detected, that is exactly what you want, that is no knocking or pinging. So, that code is a good sign.

As stated above the connections and wires are very important to check. Connections are a common cause of problems and sensor "codes". However, given the age and milage on your car the sensors may be due for replacement. rangerj