HI HOW ARE ALL OF YOU DOING, I FOUND OUT THE EGR CODE IT WAS THE 401 CODE SO WHAT WOULD I HAVE TO DO

  • Tiny
  • moneysam
  • 1995 Lexus ES 300
  • 234 miles

I just left pep boys they said I needed the egr transducer and the egr solenoid.

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Tuesday, April 3rd, 2012 AT 5:19 PM

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  • Tiny
  • saturntech9
  • Expert
  • 29,354 posts

So did they test anything or just say there bad because of the code?You may only need one or both or a different problem all together. In all my years of working for dealerships I have learned to not trust someone elses diagnoses even from fellow techs at the dealers I worked at. They burned me more then once on there diagnoses and when they wernt there and the customer came back for the repair I was left holding the bag.

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Tuesday, April 3rd, 2012 AT 5:31 PM
  • Tiny
  • saturntech9
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  • 29,354 posts

Iposted the trouble tree for code P0401 also are sure the egr port isnt clogged?That code is for egr insufficent flow if the port is clogged it will also set that code.

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Tuesday, April 3rd, 2012 AT 7:30 PM
  • Tiny
  • moneysam
  • Member

Thanks alot I plan on goin to uti I just really wish I had my own scantool so many people try to trick ya

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Tuesday, April 3rd, 2012 AT 8:50 PM
  • Tiny
  • saturntech9
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Your welcome thats what were here for scan tools are handy to have couldnt live without one in these days we live.

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Tuesday, April 3rd, 2012 AT 8:59 PM
  • Tiny
  • moneysam
  • Member

Well my engine light went out after I changed the egr vacuum solenoid, I also changed the egr vsv. Hopefully the light stays off. One thing about it my fuel hand is still drifting up and down from the actual level I think without the engine light on.

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Thursday, April 5th, 2012 AT 7:53 PM
  • Tiny
  • saturntech9
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  • 29,354 posts

Glad to hear the light is off most likely is a bad fuel sending unit. You can test it with a multimeter.

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Thursday, April 5th, 2012 AT 8:09 PM
  • Tiny
  • moneysam
  • Member

Ok how could I do that. I really appreciate everything when I get some bread on my card im gne give a donation. I been tinkering with cars since I was 12 and all of this was a challenge but I learned alot from it.

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Thursday, April 5th, 2012 AT 8:13 PM
  • Tiny
  • moneysam
  • Member

How am I suppose to check the fuel sending unit

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Thursday, April 5th, 2012 AT 10:58 PM
  • Tiny
  • saturntech9
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  • 29,354 posts

First thing you need to do is see if you can locate a pig tail that connects to the gas tank?Also does the gauge drift on a regular basis so it can be easly tested when its acting up?

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Friday, April 6th, 2012 AT 4:37 PM
  • Tiny
  • moneysam
  • Member

Yea seem like when I hit a bump it go back to where it was at first but din it will slowly drift down

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Friday, April 6th, 2012 AT 5:25 PM

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