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1994 Ford Explorer Other - Engine
Question: Check engine light comes on after engine warmes up.get codes: 558, EGR Valve Regulator solenoid circuit fault..and code 332, Insufficient EGR flow detected.What to do? Erik.
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Technican: Hi;
Need to replace egr valve. Also need to check the repeat of the code. erase it and then try again. .
Owner: Hi! Changed the EGR valve. Cleared the codes.Still getting the check enging light, and the code 332.One book I have say:insufficient EGR flow detected, and the other book say: code 332...EGR valve opening not detected..what to do? Thanks again.Erik
Technican: Hi,
how about trying to replace the EGR sensor.
Owner: The egr valve sensor, the egr valve position sensor or the pressure feedback egr sensor? Erik.
Owner: I replased the EGR pressure sensor..same problem..code 332 forget the last question..:-( Any more ideas? Erik
Technican: Hi;
Try disconnecting hte sensorand see if you get a high rich mixture, Also have you cleared all the codes? Thanks.
Owner: Hi. What is a hte sensor? Erik.
Technican: Hi;
It wa a mispelling. It meant to disconnect the sensor. Soory.
Owner: Did that, and no difference. I get code 332 while doing a Key On, Engine Off..so should not be the vacum right? Maybe some electrical problem...My brain is dead...how are you doing :-) Erik. And yes, I clear the codes everytime I try something new..so don't know what is giving me 332 with the engine NOT running..
Technican: Hi;
Do the EOER test and se what the codes are. Thanks les
Owner: Cleared the codes, and did the Key On, Engine Running test. Got code 332. Erik. Thanks!
Technican: Hi;
Letme do a little reasearch, and I will get back to you tommorrow. Thanks.
Owner: ok, thanks.Get code 558 again. Erik.
Technican: Hi;
Code 558 means the egr vaccumm regulator. Sounds like I need to do a little research before I can help you. It sounds like you got a short in the wiring harness. Thanks.
Technican: Hi Erik.
You should have a egr vacuum regulator. This is what controls the valve opening and not. It gets it's signal from the computer. There is two different systems that Ford used. One is called " Pressure Feedback EGR (PFE), and the other is called " Differential Pressure Feedback (DPFE). According to my schematics you should have the DPFE. This is the system that uses the one EVR instead of two. .
Owner: Les! I am a lucky man(not talking about the turkey I am going to eat tomorrow) Changed the computer, and codes gone...it runs like a charm..until next time...happy thanksgiving..Erik
Technican: Hi Erik:
Sorry it took me awhile to troubleshoot. The codes where not making any sense. As you noted on my last answer. I studied it and figured out what the whole system is trying to do. Thanks for your patience. People like you are the ones that make this web so useful. Happy Thanksgiving to you and your family. May the lord bless you all. Thanks.
Technican: Hi;
Have not heard any more from you. Thanks les Here's How To Get Guaranteed Solutions In Minutes
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