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Can broken EVAP cause car to run rich?

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Old Feb 16, 2004 | 02:45 PM
  #1  
proguitar04's Avatar
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Can broken EVAP cause car to run rich?

I pulled the code '1008' from my car the other day, and looked up the problem. The car runs fine, and I think the solenoid control unit might just need to be replaced. Either way, the car runs fine, but could it cause the car to run rich? I can't even squeeze 300 out of a tank anymore. Any input is great. Thanks in advance....
Old Feb 16, 2004 | 03:50 PM
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i don't know but i'm throwing that code too so let me know what you do boutit
Old Feb 16, 2004 | 03:52 PM
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From: Lake Orion, MI
1008
The Evaporative Emission (EVAP) Canister Purge Volume Control Solenoid Valve uses an on/off duty cycle to control the flow of fuel vapor from the EVAP canister. Diagnostic Trouble Code 1008 is set when the Engine Control Module (the computer) detects an improper signal through the valve. The problem is likely to be in the electrical wiring, harness, or the valve itself.

Check fuse #58 (10 amps) and replace if necessary.

The CPVCSV is easy to see and reach. It is located in the engine compartment, mounted to the top of the upper intake manifold. Notice the Vehicle Serial number stamped into the firewall. Put your finger on the third-from-last number. Move your finger three inches toward the radiator. That's the CPVCSV. It has one two-wire electrical connector and two vacuum hoses. It is directly above the ignition coil connector for cylinder #5 and has to be removed in order to replace the #5 coil or spark plug.

You may test the valve. This test procedure is performed with the engine off. Remove the electrical connector and both vacuum hoses. Fasten a length of clean rubber vacuum tubing to either nipple. Gently blow through the hose. The valve should be closed and it should be difficult or impossible to send air through the valve. Now use a pair of fused test leads to provide 12 volts to the electric terminals. The polarity doesn't matter. With the solenoid energized the valve should be open and it should be easy to send air through the valve.

http://forums.maxima.org/showthread.php?t=265311
Old Feb 16, 2004 | 04:08 PM
  #4  
Frank Fontaine's Avatar
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Originally Posted by kevlo911
1008
The Evaporative Emission (EVAP) Canister Purge Volume Control Solenoid Valve uses an on/off duty cycle to control the flow of fuel vapor from the EVAP canister. Diagnostic Trouble Code 1008 is set when the Engine Control Module (the computer) detects an improper signal through the valve. The problem is likely to be in the electrical wiring, harness, or the valve itself.

Check fuse #58 (10 amps) and replace if necessary.

The CPVCSV is easy to see and reach. It is located in the engine compartment, mounted to the top of the upper intake manifold. Notice the Vehicle Serial number stamped into the firewall. Put your finger on the third-from-last number. Move your finger three inches toward the radiator. That's the CPVCSV. It has one two-wire electrical connector and two vacuum hoses. It is directly above the ignition coil connector for cylinder #5 and has to be removed in order to replace the #5 coil or spark plug.

You may test the valve. This test procedure is performed with the engine off. Remove the electrical connector and both vacuum hoses. Fasten a length of clean rubber vacuum tubing to either nipple. Gently blow through the hose. The valve should be closed and it should be difficult or impossible to send air through the valve. Now use a pair of fused test leads to provide 12 volts to the electric terminals. The polarity doesn't matter. With the solenoid energized the valve should be open and it should be easy to send air through the valve.

http://forums.maxima.org/showthread.php?t=265311
The dealer told me that the car typically leaks minute amounts of fuel vapor when that solenoid is busted. All I know was that the car ran fine when it was cold, but as the weather warmed up, it would not start on the first try. When the weather got into the 80's+, the car acted as if it wasn't gonna start. As you guys know after going after that thing twice I just let the dealer fix it. Had a 20% coupon back then, still in the $400 range. The whole time, though, my mpg's were not affected. my .02
Old Feb 16, 2004 | 08:48 PM
  #5  
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Where the hell is fuse #58... I can't find it in there, under the steering wheel kinda i mean..
Old Feb 17, 2004 | 08:55 AM
  #6  
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the only thing i can find that's number 58 is a relay under the hood. would that be what their talking about? how do you know if it's bad?
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