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koeo results not right?

Old 06-26-2009, 06:24 AM
  #11  
Joel5.0
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Yup.... system activates fuel pump and cycles radiator fan through both speeds to check those circuits.

Based on the clip you have:

111-111--1--157-157

111 = System Pass as an On Demand (OD) code
10 = separator code
157 - MAF sensor went below 0.4 volts during the last 80 warm-up cycles as a Continuous Memory (CM) code.

You may want to remove MAF, clean its elements with contact/carb cleaner, make sure the connector in the MAF housing and the extension harness connector are OK, clear codes, make sure codes were cleared (rerun KOEO and make sure 157 is not showing)..... test drive the car for ~5 minutes, run a KOEO and a KOER self tests and LUK.
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Old 06-26-2009, 11:25 AM
  #12  
pk222
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ok I'll try as soon as I get off work.

should I post another video or should I just try to read it myself?

Last edited by pk222; 06-26-2009 at 11:29 AM.
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Old 06-26-2009, 02:49 PM
  #13  
Joel5.0
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Your call....... just keep in mind it works like:

code1- code2 - code1 - code2 - separator - code1 - code2 - code1 - code2
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Old 06-27-2009, 01:55 AM
  #14  
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I didn't get a chance to run the tests today but Ill do it early tomarrow.

When you said make sure code 157 doesn't show up after clearing the codes, if it does show up should I not try to drive it or should I try to drive it and still do the koeo and koer tests?
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Old 06-27-2009, 05:05 AM
  #15  
AdderMk2
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Originally Posted by pk222
I didn't get a chance to run the tests today but Ill do it early tomarrow.

When you said make sure code 157 doesn't show up after clearing the codes, if it does show up should I not try to drive it or should I try to drive it and still do the koeo and koer tests?
if you try clearing the codes, and the maf code is still there before you drive.... you obviously didnt clear the codes properly
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Old 06-27-2009, 11:10 AM
  #16  
pk222
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don't you just disconnect the battery for 20 minutes?
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Old 06-27-2009, 11:59 AM
  #17  
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I just tried to do the test. the koeo ran 111 111 1 111 and the koeo before running was the same
I tried to run the koer test but the car wouldn't stay running and without hitting the gas which I think your not supposed to do on a koer test because it transfers the koer test to a cylinder balance test?
I'll try it again a little later
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Old 06-27-2009, 12:06 PM
  #18  
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Does the engine start and idles?..... if so, it shouldn't stall when the KOER is started, the IAC valve raises engine rpm's..... unless there's a problem with the valve. You also need to make sure engine coolant temp is >160° for the KOER. LUK
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Old 06-27-2009, 12:26 PM
  #19  
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it will idle off and on. usually I have to play with the throttle to keep it started for a couple minutes then it will idle.
I tried to start the car twice and it wouldn't stay running. The idle would fluxuate up to 2000 rpm and drop and die. It seemed like it was trying to stay running better than when regularly not running the koer

I could try to do it when the car has sat and had time to cool down. I can't really tell how hot the car is because the temperature gauge doesn't work. When I tried to do the koer the car was hot because I just got back from driving it.
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Old 06-27-2009, 07:18 PM
  #20  
pk222
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ok well I just did the koeo test and koer test again. I didn't trust my judgment on reading the codes so I made a video again.

koeo after cleaning MAF and disconnecting the battery for 20 minutes.

http://s275.photobucket.com/albums/j...rent=koeo2.flv

this is the koer right after the koeo. Didn't mean to hold the camera that close

http://s275.photobucket.com/albums/j...rrent=koer.flv
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