I don't know what code 511 means, do you?

[fastf50rd]

On my KOEO test i got code 511. This is an electronic control assembly problem, (eca) prob. Does anyone know what the eca is? Could this be causing my pinging problem.

 

[chrismillion]

the 511 code is " Read Only Memory test failed-replace PCM" (Power Control Module)

Source: Haynes Repair Manual 1994 thru 2000

 

[fastf50rd]

So, what's this mean?

 

[GTJake]

I got "EEC Processor ROM test failure."

No idea wth that means.

Jake

 

[5.0_GT_kid]

That don't sound good

 

[347 Special]

511
(O)
No power to PCM pin 1 or bad PCM (processor)

 

[chrismillion]

So, what's this mean?

i guess it means what it says,"replace PCM".

 

[chrismillion]

you have supercharger so i guess you have a chip? if so, your chip is overiding some functions.

 

[fastf50rd]

Yeah, i found out anything pluged into the j3 port will throw that code.

 

[mo_dingo]

511
(O)
No power to PCM pin 1 or bad PCM (processor)

If this is true, hook up a volt meter to pin1 on the PCM and ground to the chassis. See if you are getting 12V.

If you are, then your PCM may be bad.

If you aren't, the wire is severed somewhere. Trace it all the way back to the wiring harness.
Scott