obd 1 codes / HELP

[JSerr5130]

I have a 94 Ranger , 3.0,A4LD. It has 167,000 miles on it . Been running fine until the check engine light came on . I did the paperclip test and I got codes,332 & 538. Low egr pressure would mean what? Also the 538 makes no sense. I need help. Anyone out there,PLEASE!!!!

 

[SenorNoob]

A good code description chart can be found here:
http://www.therangerstation.com/tech_library/3digitcodes.html

Some places on the net don't have the best descriptions.

332: EGR did not open/respond during test or if memory code, did not open intermittently.

Sounds like it might be a sticky EGR valve. They tend to get plugged with carbon.

538: System did not receive "goose" test.

This code only applies to a KOER test where the throttle pressed far enough or fast enough after the computer flashed its prompt. Note: It can be hard to get it right.

 

[RonD]

Running fine until CEL came on................

So what does it run like now?

Rough idle or smooth idle and rough at higher RPMs,
or visa versa?

 

[JSerr5130]

94 Ranger

Update:I ran a vacuum line from the manifold to the egr-nothing happened. Increased vacuum-still nothing. Also ,engine had good vacuum 2 months ago.16-steady n now 14 steady . Need help.........Starting my cat is getting clogged also.

 

[RonD]

You have two threads going on the same topic

see here:
http://www.therangerstation.com/forums/showthread.php?t=145647

 

[JSerr5130]

94 Ranger

Cleaned the egr valve yesterday n it works good . I also found a hose the right size on the manifold n I couldn't blow any air in it. It was full of crud. I cleaned it out as best as I could . Is that clogged also? Am I supposed to be able to blow air in it? About ready to pull the upper half intake off to really clean it out . Also , After I cleaned all this , I took it out n ran good for a while then the cel came on. HELP PLEASE

 

[JSerr5130]

Obd 1 codes

The truck is still running the same . Lousy CEL ON. Cleaned the egr , works good , the tube is clear, the intake port was clogged as I had stated and I cleaned the crap out of it . Tried running a small hose in ,but it stops . Is it supposed to go into the intake . Tried blowing air into the intake and can't . Is that my problem ?About ready to get a dremel n run a wire brush all the way into the intake .