[tdavistheman]

Alright, so lately my car hasn't been sustaining an idle and bogging, also it hesitates when the engine warms up. I've replaced the IAC valve, EGR valve, fuel filter, put in an all new MSD ignition with new performance plugs, and have also cleaned out my MAF. So I bought a Ford Digital Code Reader yesterday and my ECU threw out 5 codes. And I'm not sure what they mean exactly.. I would appreciate any insight! Here are the codes:

511- permanent Read Only Memory (ROM) test failed - I have no clue what this could mean or be

565- Canister purge circuit failure - again, I have no clue what this is

157- MAF sensor went below 0.4v during the last 80 warm up cycles - this could be because the MAF was dirty, which I recently cleaned it

212- Loss of IDM (Ignition Diagnostic Monitor) input to EEC or spout connector is grounded - I know what my spout is. I could see how the spout connector being grounded could cause my problems.

334- DPFE or EVP circuit above the maximum limit of 4.81 volts - have no clue what this means..

If anyone has any explanation for these codes and can give me insight I'd be greatly appreciated! Thanks in advance for your response!

 

[tdavistheman]

...........Anybody??

 

[dudeboy]

clear out the codes and run them again.

511 can come up with some chips. Was your ecu tuned with a J3 chip?
If not sure, pull the ecu from the kickpanel and check the j3 port for added hardware.

565 - do you still have the emissions in place?

Maybe look over grounds, as that is rather diverse set of codes...

 

[tdavistheman]

Where do I start when checking the grounds??