Code 32 Info Needed
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Code 32 Info Needed
Can anyone give me details on code 32 of my 87 Bronco. It only comes up as a continuous code and not during the engine run test or Key Off Key On test. I think it has something to do with the EGR posistion sensor on top of the EGR valve. The valve is working properly because I can see it move up a little during the engine run test. I also teed in my vacuum gauge and went driving, got plenty of vacuum during cruising speeds. Thanks.
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http://autorepair.about.com/library/ts/bl-dtcs-29.htm
Code 32 is EGR not Controlling. Could be the vacuum device that sends the vacuum to the EGR?
Code 32 is EGR not Controlling. Could be the vacuum device that sends the vacuum to the EGR?
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To test the EGR you have to first unhook the IAC, then pull a vacuum to the EGR and if it's opening the engine will begin to stumble. Do this at idle speed. There should be no vacuum to it at idle from what I have read. Unhooking the IAC will prevent it from compensating for the air so it will act like a vacuum leak.
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If the EGR sensor wasn't working, the Engine Run test would catch that because it trys to open the EGR valve during the test. I can see it open and I get good vacuum to the switch. The more I think about it maybe the sensor has a dead spot in it. I checked the resistance on it and its linear as can be.
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Here's another thought...there is a MAP sensor on the firewall, it sends the vacuum to the ECM which then in turns opens the EGR. That might be it.
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From: kansas
That sensor is probably failing only part of the time. It,s plastic, sitting on top of a metal valve that has 1000 degree exhaust gas flowing thru it. I couldn,t begin to count how many I,ve replaced for exactly the same problem.
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