Codes

[Tramtrist]

I just bought a 93 ATX and have just run the codes on it.
129 (R) No MAP or Mass Air Flow sensor change during "goose" test - MAP MAF
167 (R) No Throttle Position sensor change in "goose" test (must get at least 25% rotation) - TPS
225 (R) Knock sensor not tested (ignore if not pinging) - KS
332 (R,M) EGR did not open/respond during test or if memory code, did not open intermittantly - EVR or PFE
411 (R) Idle speed system not controlling idle properly (generally idle too high) - ISC
632 (R) E4OD - Transmission Control Switch (TCS) should be cycled once between engine ID and Goose test

no clue what these mean really
Any help is appreciated

 

[Rockledge]

The 411 code could mean a problem with the Idle Air Control (IAC) valve. Does the engine idle OK? If not, you might try cleaning the IAC and making sure everything is OK with the throttle body assembly (in particular, make sure the the throttle plate is closing all the way). Also check for any possible leaks up around the throttle body and upper intake area. Then follow the procedure to reset the idle decribed in this thread:

http://www.shoforum.com/showthread.php?t=10161

If the idle is OK then I'd ignore the 411 code.

All the rest of the codes you listed are the result of the EEC Self Tests not being carried out correctly. It can be tricky in that certain things have to be done in a certain sequence.

Here's a good how-to on pulling codes: http://www.shophoenixproject.com/eec/eec.htm

HTH

 

[Tramtrist]

Thanks a ton Rock.. The car idles just fine from what i can tell. The only issues I've had is at stop lights or red lights when the oil light flickers a bit. I'll follow those intructions! Thanks again

 

[Tramtrist]

I noticed my oil was a quart low... After putting in a quart the oil light does not flicker at stops... Could this be the cause of a rod bearing problem waiting to happen? I've read the oil pressure fluctuates when that problem is near etc...

Thanks again!

 

[Rockledge]

Being a quart down should not, in and of itself, be enough to cause low enough oil pressure to trigger the warning lamp. On the other hand, if the bearings are worn, then being a quart down can have a much more profound effect on pressure.