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Having trouble getting EVAP monitor to come up.

Tiny
DYERDOGS
  • MEMBER
  • 2001 SATURN SC2
  • 154,000 MILES
Had a evap code. After clearing code monitors are coming back up slowly. C, E and EV were all not up after 300 miles of driving. Many cold starts with various trip lengths. Then C and E finally came back up now EV is still not up. No trouble codes are present.
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Sunday, January 8th, 2012 AT 3:02 PM

10 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
So is the evap the only one that hs set yet?On a cold start have you let the car idle for 2-3 mins without putting it into gear or touching the gas?
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Sunday, January 8th, 2012 AT 5:02 PM
Tiny
DYERDOGS
  • MEMBER
  • 6 POSTS
Yes the car is driven by my wife and is warmed up almost daily before driving. The EV monitor finally came up after 450 miles. Now there is a p0440 code.
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Monday, January 9th, 2012 AT 1:27 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
Have you looked at the gas for the seal being cracked?
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Monday, January 9th, 2012 AT 5:16 PM
Tiny
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  • 6 POSTS
Yes first thing I did was replace gas cap.
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Tuesday, January 10th, 2012 AT 1:31 PM
Tiny
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  • 6 POSTS
Someone suggested I check the EGR valve because it took so long for the egr monitor to come up. Could that cause p0440 code?
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Tuesday, January 10th, 2012 AT 1:33 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
You mean it took so long for the egr monitor to set?I have never seen a egr issue cause a evap code to set on that car. There two different systems have you had a smoke test or nitrogen leak test done yet on the car?Also checked and seen what the fuel pressure sensor is reading on a scan tool with the gas cap off?
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Tuesday, January 10th, 2012 AT 1:57 PM
Tiny
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  • 6 POSTS
It took 450 miles for the E light to stop blinking on the scan tool. Haven"t had test done yet I guess that will come after a good visual of the system. Thanks
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Tuesday, January 10th, 2012 AT 2:18 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
Yes check all the hoses etc.
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Wednesday, January 11th, 2012 AT 7:21 AM
Tiny
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  • MEMBER
  • 6 POSTS
Everything looked to be in order. Unplugged and inspected electrical connections, visually inspected hoses. Cleared code waiting for monitors. If it doesn't operate correctly it's of to a professional.
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Friday, January 13th, 2012 AT 5:00 AM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
I posted the trouble tree for code P0440.
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Friday, January 13th, 2012 AT 5:57 AM

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