Subject	EGR code issues/Fuel pressure loss
Posted by	Roundabout136 on April 05, 2010 at 7:25 AM
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Message	Car is a 94 n/a Issue #1 I recently replaced three injectors. I decided to do the throttle body coolant line bypass to make things easier re-installing and for future plenum pulls. Everything is correct, i've checked countless times. Everything went smooth. A day later I checked codes and got 32 (EGR function, EGR valve does not operate (valve spring does not lift) After a bit of reading, I took the vac line connected right into the EGR and sucked on it to see if the valve was working in the EGR, you can hear a poping noise of the valve. I even let it sit on my tongue for two minutes and it held pressure the whole time. After that I drove the car a bit, checked codes and got 55. Drove from Norfolk to Richmond and got a CEL. Got home and checked codes and got 32 once again. Again I took the vac line and sucked on it and got the noise. 55 shortly after.... Tested the EGR solenoid the other day and it clicked, so I know it's functioning. I accually found a vac line that was not connected to the bottom of the Throttle Body and thought that was why I was getting the code, connected it and I'm still getting the code. Issue #2 Changed a few injectors a few weeks ago and it seemed fine right after. Started right up and ran great for a couple weeks. It developed a problem starting after a while. It would take several cranks to get started. I hooked up the FP gauge today and found that pressure drops from 44 to 0 in about 2 minutes after priming. I pinched the return line back to the tank and the problem persisted. So I though maybe the fuel pump check valve might be the problem. Then I primed it, pinched the return, and also the feed, cutting off all lines to the tank. The pressure continued to drop with both lines pinched. I concluded that a lower injector o-ring had developed a pretty bad leak. I never noticed any smoke or anything. I don't see/smell any fuel leaks to the outside. Does anyone have any other possibilities? The only thing I can think of to do is pull the fuel rails again and see if they leak out of the bottom. Thanks -adam
Follow Ups	EGR code issues/Fuel pressure loss - Roundabout136 07:25:10 04/05/10 Re: EGR code issues/Fuel pressure loss - de944 09:09:28 04/05/10 assuming this is a federal ECU, are you sure that it - KasbeKZ(VA) 19:16:05 04/05/10 A Federal ECU has no way to throw that code - de944 12:53:53 04/06/10 EGR is probably dirty.. - Draker (Eugene, OR) 13:23:04 04/05/10 replaced - Roundabout136 14:54:07 04/05/10 vacuum lines ok for the egr? - Brett@AwesomeZ 19:42:47 04/05/10 Re: vacuum lines ok for the egr? - Roundabout136 16:55:44 04/06/10 Re: EGR code issues - canyoncarver 05:09:27 04/08/10
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