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Old 01-22-2009, 01:30 PM   #1
mustangsneverdie
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Default got me an obd1 scanner this mornin...

and the codes it pulled with the koeo was 34 and the koer was 9866 I know what the code 34 is but I can't figure out what 9866 is.Does anyone else know?
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91 mustang 5.0 lx,306 shortblock,E-303 cam,ported and polished E7's,rebuilt stock T-5,bbk E/L shorty headers,with their 2 1/2" o/r H-pipes,70 mm maf,3G alt.,upr adj. upper c/a's 3:73 gears. race weight with driver:3260,only a 100 lbs. more than the 85

85 mustang: parts car for now

Best time 13.7@ 102 mph 2.074 60' on street tires(in the '85)
Best time 14.3@ 96 mph 2.13 60' on street tires(in the '91)
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Old 01-22-2009, 01:33 PM   #2
FivePointOhh
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sure its not 98 & 66? lol


34 is the egr position/evp malfunction. is your egr valve clean?
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Old 01-22-2009, 01:35 PM   #3
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and if im right and its 98 and 66. 66 is a MAF low voltage output and thats probably why your car idles like shizz and why it makes no difference when you unplug it while its running.
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Old 01-22-2009, 01:48 PM   #4
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Quote:
Originally Posted by FivePointOhh View Post
and if im right and its 98 and 66. 66 is a MAF low voltage output and thats probably why your car idles like shizz and why it makes no difference when you unplug it while its running.
I guess they can be but what is 98?
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91 mustang 5.0 lx,306 shortblock,E-303 cam,ported and polished E7's,rebuilt stock T-5,bbk E/L shorty headers,with their 2 1/2" o/r H-pipes,70 mm maf,3G alt.,upr adj. upper c/a's 3:73 gears. race weight with driver:3260,only a 100 lbs. more than the 85

85 mustang: parts car for now

Best time 13.7@ 102 mph 2.074 60' on street tires(in the '85)
Best time 14.3@ 96 mph 2.13 60' on street tires(in the '91)
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Old 01-22-2009, 01:49 PM   #5
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sure its not 98 & 66? lol


34 is the egr position/evp malfunction. is your egr valve clean?
what are you talkin bout I'm still trying to figure out what the egr looks like lol
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91 mustang 5.0 lx,306 shortblock,E-303 cam,ported and polished E7's,rebuilt stock T-5,bbk E/L shorty headers,with their 2 1/2" o/r H-pipes,70 mm maf,3G alt.,upr adj. upper c/a's 3:73 gears. race weight with driver:3260,only a 100 lbs. more than the 85

85 mustang: parts car for now

Best time 13.7@ 102 mph 2.074 60' on street tires(in the '85)
Best time 14.3@ 96 mph 2.13 60' on street tires(in the '91)
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Old 01-22-2009, 01:51 PM   #6
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hard fault

98 (r): Hard fault present. The ECA is running in FMEM (Failure Effects Management Mode),
so something is royally screwed up that the KOEO test should have told you about.
Rerun KOEO and fix whatever you find there.
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Old 01-22-2009, 01:53 PM   #7
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what are you talkin bout I'm still trying to figure out what the egr looks like lol
egr valve bolts to the back of the egr spacer behind the TB. the sensor plugged into the valve is the evp sensor.
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Old 01-22-2009, 02:02 PM   #8
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hard fault

98 (r): Hard fault present. The ECA is running in FMEM (Failure Effects Management Mode),
so something is royally screwed up that the KOEO test should have told you about.
Rerun KOEO and fix whatever you find there.
i'll run it in about 15 min. I got a delivery right now
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91 mustang 5.0 lx,306 shortblock,E-303 cam,ported and polished E7's,rebuilt stock T-5,bbk E/L shorty headers,with their 2 1/2" o/r H-pipes,70 mm maf,3G alt.,upr adj. upper c/a's 3:73 gears. race weight with driver:3260,only a 100 lbs. more than the 85

85 mustang: parts car for now

Best time 13.7@ 102 mph 2.074 60' on street tires(in the '85)
Best time 14.3@ 96 mph 2.13 60' on street tires(in the '91)
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Old 01-22-2009, 02:56 PM   #9
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the koeo pulled the same one(34) and I don't have the time right now to run the koer test right now
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91 mustang 5.0 lx,306 shortblock,E-303 cam,ported and polished E7's,rebuilt stock T-5,bbk E/L shorty headers,with their 2 1/2" o/r H-pipes,70 mm maf,3G alt.,upr adj. upper c/a's 3:73 gears. race weight with driver:3260,only a 100 lbs. more than the 85

85 mustang: parts car for now

Best time 13.7@ 102 mph 2.074 60' on street tires(in the '85)
Best time 14.3@ 96 mph 2.13 60' on street tires(in the '91)
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Old 01-22-2009, 03:51 PM   #10
mustangsneverdie
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and again the koer was 98 and 66
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91 mustang 5.0 lx,306 shortblock,E-303 cam,ported and polished E7's,rebuilt stock T-5,bbk E/L shorty headers,with their 2 1/2" o/r H-pipes,70 mm maf,3G alt.,upr adj. upper c/a's 3:73 gears. race weight with driver:3260,only a 100 lbs. more than the 85

85 mustang: parts car for now

Best time 13.7@ 102 mph 2.074 60' on street tires(in the '85)
Best time 14.3@ 96 mph 2.13 60' on street tires(in the '91)
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