Help with some codes!!!!!!

89sleeper said:

Code 33:

When the code 33 is received during the KOER test, it means the EGR valve was detected as having opened during the test. If the code 33 is received during the KOER test, it is likely no vacuum supply runs to the EGR valve. Inspect the vacuum hose thatruns from the EVR to the EGR valve for restrictions, holes, and cracks. Check the vacuum hose that runs from the intake manifold to the EVR. If the vacuum hoses are okay, connect a vacuum gauge to the hose connected to the EGR valve. Repeat the KOER test. If the vacuum reading on the gauge is at least 1.5 inches of mercury, carefully insert a small screwdriver in one of the holes on the underside of the EGR valve. Work the EGR valve diaphragm up and down in an attempt to free any mechanical binding. Repeat the KOER test and check for the code 33.If the code 33 returns, connect a hand-held vacuum pump to the EGR valveand apply 2 to 3 inches of vacuum. Does the EGR hold vacuum? If it does not replace the EGR valve. If it does, replace the EVP sensor.

Code 94:

When the code 94 is received during the KOER test, it indicates the side of the thermactor air system with cylinders 5 to 8 is not working.
Possible causes include the following:
Blocked, leaking, or kinked vacuum lines
A defective air pump
A defective diverter valve
Defective or blocked air management solenoids

If the vacuum hoses are not damaged and are routed properly, repeat the KOER test. After the last memory code, depress the throttle to the floor and release it. The needle will rise to 12 volts. Probe both terminals on each of the air management solenoids. Each solenoid should have a terminal with 12 volts and a terminal with 0 volts. If neither terminal on one side has 12 volts, repair the 12-volt power supply to the solenoid. If both terminals have 12 volts at this point, repair the wire between that solenoid and either ECA terminal 51 or ECA terminal 11, depending on the affected solenoid.
If the circut passes the first part of the test, depress and release the throttle again. The voltmeter should drop to 0 volts. Both terminals of each AM solenoid should now have 12 volts on them. If one does not, replace the affected solenoid.

Code 44:

When the code 44 is received during the KOER test, it indicates the thermactor air system is not working.
Possible causes include the following:
Blocked, leaking, or kinked vacuum lines
A defective air pump
A defective diverter valve
Defective or blocked air management solenoids

If the vacuum hoses are not damaged and are routed properly, repeat the KOER test. After the last memory code, depress the throttle to the floor and release it. The needle will rise to 12 volts. Probe both terminals on each of the air management solenoids. Each solenoid should have a terminal with 12 volts and a terminal with 0 volts. If neither terminal on one side has 12 volts, repair the 12-volt power supply to the solenoid. If both terminals have 12 volts at this point, repair the wire between that solenoid and either ECA terminal 51 or ECA terminal 11, depending on the affected solenoid.
If the circut passes the first part of the test, depress and release the throttle again. The voltmeter should drop to 0 volts. Both terminals of each AM solenoid should now have 12 volts on them. If one does not, replace the affected solenoid.



Hope this helps,

My fingers hurt from typing...

Kevin

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HISSIN50 said:

Ok Jrichker Jr.

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gooch06 said:

What does code 94 and 44 have to do with a code 85 on KOEO?

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the pony boy said:

if you have removed your smog stuff would this cause these codes(44.94?).also would having the idle adjuster plate on the egr cause the 33 code? phil

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